Thomson Reuters reports Q1 loss on onetime charge on financial and risk

first_imgTORONTO – Thomson Reuters Corp. reported a loss in its first quarter as it took a one-time charge related to the sale of its financial and risk business announced earlier this year.The news and information company, which keeps its books in U.S. dollars, said the loss attributable to shareholders amounted to US$339 million or 48 cents per share compared with a profit attributable to shareholders of $297 million or 41 cents per share a year ago.Revenue in the quarter totalled $1.38 billion, up from $1.33 billion.The loss in the most recent quarter reflected an $844-million deferred tax charge associated with the proposed sale of a 55 per cent interest in the company’s financial and risk business to a consortium led by U.S.-based private equity firm Blackstone.On an adjusted basis, Thomson Reuters says it earned 28 cents per share in the quarter, up from an adjusted profit of 25 cents per share a year ago.Analysts on average had expected a profit of 27 cents per share, according to Thomson Reuters Eikon.Companies in this story: (TSX:TRI)last_img read more

Minister says 409 injured in gas tax protests around France

first_imgPARIS — Grassroots protests over hikes in taxes on diesel fuel and gasoline have continued in France, though on a far smaller scale than the ones that paralyzed traffic around the country.Interior Minister Christophe Castaner on Sunday increased the number of people reported injured during Saturday’s protests to 409. He said 14 of them had serious injuries. Castaner told RTL radio 28 firefighters and member of police forces also were injured.A protester struck and killed by a car that accelerated in a panic at a roadblock in the Savoie region was the only death. French media reported on Sunday that the driver of the vehicle was handed preliminary manslaughter charges.Castaner said 157 people were detained for questioning — up from 73 reported Saturday night.Protests continued at 150 sites.The Associated Presslast_img read more

TSX positive streak continues as oil prices rise and Bank of Canada

first_imgThe energy sector was helped again by crude oil prices, which rose on Saudi Arabia’s energy minister reassuring that its oil production and exports are falling sharply. West Texas Intermediate prices are up 23 per cent from its December low.The February crude contract was up US$2.58 at US$52.36 per barrel Wednesday and the February natural gas contract was up 1.7 cents at US$2.98 per mmBTU.Canada’s financial sector was helped by the Bank of Canada’s decision to hold its key rate at 1.75 per cent while the economy absorbs softness from a 44 per cent drop in oil prices from its October peak.“The banks tend to be a play on Canadian GDP growth and with the Bank of Canada having a supportive stance to keep the Canadian economy running smoothly that’s certainly positive for the banks,” said Chopra. The S&P/TSX composite index closed up 199.58 points to 14,804.73 in a broad-based rally that saw all sectors rise.It was the third day of triple-digit gains so far this year and the best four-consecutive day performance since January 2016.“There seems to be a lot more optimism about a U.S.-China trade deal and when it comes to Federal Reserve interest rate hikes it appears to be that they’ll take a pause,” Chopra said referring to minutes released from the central bank and recent comments from several bank governors.The cannabis-heavy health care sector rose by 6.25 percent as Canopy Growth Corp. surged 13.3 percent, while Aurora Cannabis Inc. and Aphria Inc. gained 7.3 and 6.2 per cent respectively.The key energy sector followed, with financials, industrials and materials also rising.Financial and energy stocks were the biggest gainers on the day led by Sun Life Financial Inc., Royal Bank of Canada, Manulife Financial and Suncor Energy Inc. Meanwhile, BCE Inc. and Nutrien Ltd. lost ground while Imperial Oil and TransCanada Corp. posted small gains. TORONTO, O.N. – Canada’s main stock index posted its strongest four-day gain in three years Wednesday as it was propelled by a large increase in the price of crude oil and the Bank of Canada’s latest rate announcement.The Toronto Stock Exchange continued its rebound from a dreadful autumn and tough December helped by positive news about the trade dispute between China and the U.S. and minutes from the Federal Reserve confirming its patience about raising interest rates, says Anish Chopra, managing director with Portfolio Management Corp.“A fantastic four-day stretch,” he said in an interview.center_img In New York, the Dow Jones industrial average gained 91.67 points at 23,879.12. The S&P 500 index was up 10.55 points at 2,584.96, while the Nasdaq composite was up 60.08 points at 6,957.08.The Canadian dollar traded at an average of 75.64 cents US compared with an average of 75.23 cents US on Tuesday.The February gold contract was up US$6.10 at US$1,292 an ounce and the March copper contract was up 0.1 of a cent at US$2.66 a pound.last_img read more

Start em Young to Premier this Tuesday on Wild TV

first_img“I think it’s important and I don’t think we give it enough focus in that industry. I want to inspire others as well and give everyone the opportunity to get out there and learn those lessons. For anyone who doesn’t hunt but wants to, we can help out with that. They’re all good lessons to have.”Skage, being a life-long hunter, says the inspiration for the show was based on seeing how excited his son was when he first took him hunting.“When I seen how he was when I took him for the first time into the woods, just that excitement, I got excited and it revitalized me.”The show will premiere on Wild TV on April 16 at 8:00 p.m. EDT. FORT NELSON, B.C. – A locally produced TV series will be premiering this Tuesday on Wild TV.For the past year, Fort Nelson Resident, Mark Skage, has been producing episodes for a series called Start ’em Young.According to Skage, the show aims to inspire and teach youngsters the skills and knowledge of hunting.last_img read more

Zimmer hopes to hear from Ethics Commissioner on Wednesday at Ethics Committee

first_imgFORT ST. JOHN, B.C. – Ethics Committee Chair, Local MP Bob Zimmer, has called an emergency meeting of the Parliamentary Ethics Committee for this Wednesday on Prime Minister Justin Trudeau’s SNC-Lavalin affair.According to Zimmer, the meeting has been called under two motions, by Conservative and NDP MPs, to hear from the Ethics Commissioner, Mario Dion, about his report on Trudeau’s SNC-Lavalin affair.The Ethics Commissioner appearing before the Committee is pending on the Committee’s decision; a committee which is heavily weighted by the Liberals. Zimmer says he believes Canadians are interested in hearing more details about the affair and that there are a number of details that he feels Canadians are not aware of within the report.“I think what most Canadians are curious to hear is a bit more of the details about the SNC affair and there are quite a few details in the Commissioner’s report that I don’t think have heard. We’ve heard about some big topical areas, about the corruption or the alleged pressure that was put on Jody Wilson-Raybould and those kinds of things but there’s a lot more there that will be talked about on Wednesday.”Zimmer says he will see where it goes and hopes that they will hear from the Commissioner at the meeting on Wednesday.last_img read more

My loved ones shouldnt suffer Varun

first_imgMumbai: Just days after reports emerged that a fanatic fan of Varun Dhawan threatened his ladylove Natasha Dalal, the actor said his near and dear ones should not be paying a price due to his celebrity status. There has been a buzz that a female fan waited for hours to meet Varun outside his residence. Since the actor was busy, he did not step out, and that made the fan so angry that she started misbehaving and uttered: “I will kill Natasha”. According to reports, when the girl refused to leave, security officials informed the local police station. Asked about the incident, Varun said: “The police has got involved in the matter, so I will refrain from speaking on the incident. Keeping that aside, I am generally saying that it is a wrong thing. My loved ones should not have to pay any price because of my celebrity status.”last_img read more

Jallianwala Bagh massacre centenary Rahul Amarinder pay floral tributes

first_imgAmritsar: Congress president Rahul Gandhi and Punjab Chief Minister Amarinder Singh paid floral tributes at the Jallianwala Bagh Memorial here on Saturday to mark the centenary of the Jallianwala Bagh massacre. Gandhi, Singh, Punjab minister Navjot Singh Sidhu, accompanied by some other Congress leaders, paid floral tributes at the memorial inside the Jallianwala Bagh in the morning. They also observed a two-minute silence to remember those who were massacred in the tragic incident on April 13, 1919. Also Read – India gets first tranche of Swiss bank a/c details Gandhi arrived at Amritsar late on Friday night. Upon his arrival, the Congress chief, accompanied by Singh, went straight to the Golden Temple here and paid obeisance. Singh and Punjab Governor V P Singh Badnore had also taken part in a candlelight march on the eve of the centenary of the Jallianwala Bagh massacre on Friday evening as part of the various events organised by the Punjab government to mark the historic occasion. Singh had termed the tragic event as a heart-wrenching moment in India’s history. The massacre took place at Jallianwala Bagh in Amritsar during the Baisakhi festival in April 1919 when troops of the British Indian Army under the command of Colonel Dyer opened fire at a crowd of people holding a pro-independence demonstration, leaving several dead and scores injured.last_img read more

Ruby and Berlusconis Affair Moroccan Minister Unveils New Facts

first_imgCasablanca- On Monday, Mohamed Moubdie, the Moroccan Minister of Public Service and Administrative Modernization, shared controversial information with Moroccan newspaper Al Akhbar about the affair between Silvio Berlusconi and “Ruby.”Moubdie told Al Akhbar that “Ruby was not a minor when she had a sexual affair with the Italian politician.”In 2010, Berlusconi, former Prime Minister of Italy, was pronounced guilty of soliciting sex from a Moroccan nightclub dancer Karima El Mahroug, also known as Ruby Rubacuori, who was said to still be a minor at that time. According to Moubdie, he was the one who signed El Mahroug’s birth certificate in 1992, while he was still the president of the municipal council in Fqih Ben Saleh (200 kilometres from Casablanca). Hence, Ruby was not a minor when she had an affair with Berlusconi.According to Italian press, Berlusconi’s defense requested that investigations be carried out concerning Moubdie’s controversial statements.Souad Sbari, a former Italian lawmaker  called on the prosecutor to intervene in order to elucidate the case and retrieve the original documentation concerning Ruby’s date of birth. Sbai also demanded the Minister testify in the case.“It’s a story that should not be swept under the carpet, because Italians want to know the truth once and for all about this issue,” Sbai told the Italian media.Subsequently, the Attorney General of Milan opened investigations on 45 people suspected of perjury in their testimonials concerning Silvio Berlusconi’s affair.However, according to daily newspaper Akhbar Al Yaoum, Moubdie denied having shared any facts about Berlusconi’s affair with Al Akhbar. “I did not unveil any facts about the affair simply because I do not have any information about it,” the Minister said.But a recording of the interview conducted with the Minister by Moroccan journalist Bouchra Dou clearly confirms that the official stated that Ruby was not minor when she had an affair with Berlusconi.© Morocco World News. All Rights Reserved. This material may not be published, rewritten or redistributedlast_img read more

Rate Bases Jump Again for Food Network HGTV Magazines

first_img“Very rarely do we explicitly copy or interpret a show onto the pages of the magazine,” John Loughlin, EVP and general manager of Hearst Magazines, told FOLIO:’s supplement Audience Development (AD) in February 2012. “The magazines that we create in partnership out of television activity have the look, feel and essence of the television brand but in no way are they imitations of it. They break new ground and broaden the experience for the consumer.”See Also: On the Tube and On the Page: Television-Branded Publications HGTV Magazine first went to market with a test issue in October 2011—at the time, the publication had a rate base of just 450,000. Similarly, Food Network Magazine, which launched its first official issue in 2009 and was the first joint venture between Hearst and Scripps, has seen similar success, boasting its seventh rate base bump by the summer of 2012, with its 11th to come in 2014.“It’s one thing to tune in once a week and say ‘I like this show’ but it’s another thing to say I like this brand enough that I will spend $18, which is our introductory price on Food Network Magazine,” Loughlin told AD.Partnering with a television network has its perks when it comes to promotion. HGTV Magazine generated 25,000 orders after 15-second and 30-second commercials aired on the channel. Promotional messages about the publications also appear on the bottom of the screen during television programs. According to Loughlin, the overall viewing size of the audience, instead of ratings, is what really maters.“There is not a hugely tight correlation between day-to-day, week-to-week or period-to-period ratings and the circulation of the magazine,” Loughin said to AD. “Consumers who are watching television proactively tune in on a Tuesday, might not on a Wednesday and come back to it Saturday—it’s really about the consumer’s discretionary time. Consumers order a magazine or pay for a magazine and that’s the key differentiator, the fact that they’re paying for it. It also comes once a month, and because it doesn’t have the same kind of shelf life that an episode of Iron Chef or Oprah’s former daily television show, studies have shown consumers come back multiple times. The reality is there isn’t a tight correlation between ratings and circulation.”Stay updated on the latest FOLIO: news, follow us on Facebook & Twitter! Hearst’s TV-tied brands are seeing their rate bases jump again.The company announced Tuesday that Food Network Magazine will see its 11th consecutive rate base increase since officially launching in 2009, with sister title HGTV Magazine increasing its rate base for the third time since launching its first official issue in June 2012.With the July/August 2013 issue, HGTV will raise its rate base to 800,000, and the title will increase again to 1 million with the January/February 2014 issue. Big sister Food Network Magazine will increase to 1.55 million with its July/August 2013 issue and will raise its rate base twice in 2014—to 1.6 million with the January/February issue, and another bump to 1.65 million with the July/August edition.Hearst publishes these titles in a partnership with Scripps Interactive Networks—the HGTV and Food Network channels are distributed by Scripps to almost 100 million households.last_img read more

Melbourne knife attacker known to Intelligence

first_imgThis handout video grab taken and received on 9 November, 2018 via the Instagram account of Chris Newport shows a man fighting with policemen in downtown Melbourne after he stabbed a number of people. Photo: AFPA Somali-born Australian who carried out a deadly knife rampage in Melbourne held extremist views and was known to intelligence services, authorities said Saturday, as they carried out raids and interviewed dozens of witnesses.Australian Federal Police said 30-year-old Hassan Khalif Shire Ali — who was shot dead after driving a 4×4 laden with gas cylinders into the city centre and stabbing three people — fled to Australia as a child with his family in the 1980s.He stabbed three people before being confronted by members of the public and armed officers who eventually shot him in the chest. One of his victims died at the scene while two others were wounded.Authorities have questioned around 35 people who saw the rush hour attack, which although crude, was said to have been designed to “cause terror and cause maximum casualties” in the heart Australia’s bustling second city.Armed officers raided two addresses in the west and northeast of the city, linked to the perpetrator’s family and associates, although there is not thought to be an ongoing threat.The man killed by Shire Ali was named by local media as 74-year-old Sisto Malaspina, an icon of Melbourne’s thriving culinary culture who ran a famous Italian cafe.Two other men wounded in the attack are still being treated but are expected to make a recovery.Difficult questionsAustralian authorities now face difficult questions about how Shire Ali, who was known to the Australian Security Intelligence Organisation for at least three years, was able to carry out an attack.He had his Australian passport revoked in 2015 amid fears he was trying to travel to Syria to join the Islamic State group.His brother will go on trial next year on separate terror-related charges — accused of trying to acquire a firearm and kill people in a New Years’ Eve crowd.”The assessment was made that whilst he had radicalised views he didn’t pose a threat to the national security environment,” Ian Mccartney, a federal police counterterrorism official said of Shire Ali.Mccartney described the attack as a “wake up call” even as the Islamic State loses territory in Iraq and Syria, where Australian forces are part of a coalition fighting the group.”The circumstances of how he and when he moved from having these radicalised views to carrying out this attack yesterday will be a key focus of the investigation,” Mccartney added.The Islamic State group — which often claims responsibility for such attacks — said via its propaganda arm that the perpetrator was an “Islamic State fighter and carried out the operation.”It provided no evidence to back its claim.Witness footage showed police struggling for at least a minute to corral the towering man as he lunged, slashed and stabbed wildly at two officers.At least two members of the public stepped in to help police. One man was armed with a cafe chair while another — swiftly dubbed an “Aussie hero” on social media — repeatedly tried to ram the suspect with an empty metal shopping cart.But the attacks continued unabated before one officer opted for lethal force, shooting the suspect in the chest.Tried to deescalateThe officers “tried to verbally deescalate” said Victoria Police Chief Commissioner Graham Ashton.”Once the officer is off the view that there is an imminent threat to life,” he added. “That is when firearms are drawn.”Witness Chris Newport, 60, described how he had been returning from a job interview when he heard a loud noise and saw a truck on fire, rolling across the tram tracks before a second, louder bang.”In a split second everything changes” Newport told AFP, describing Shire Ali manically brandishing a knife. “You can’t imagine someone deciding to do that.”Police said that his improvised explosive device was made up of gas cylinders and some form of lighter and “certainly wasn’t sophisticated”.Australian prime minister Scott Morrison said the country would be unflinching in the fight against “radical, violent… extremist Islam that opposes our very way of life”.Shire Ali “sought to instill fear in our nation. Like those who tried before him, this terrorist failed,” he said.He cited more than a dozen foiled terror plots as evidence that Australians could have faith in their counterterrorism authorities.Melbourne is Australia’s second largest city, a cosmopolitan metropolis of almost five million people famed for its cafes, bars, restaurants and high standard of living.Friday’s attack was a double blow for the city as it coincides with an ongoing murder trial of 28-year-old James Gargasoulas, accused of ploughing his car into crowds in the same area in 2017, killing six people. The motives for that attack are still unclear.last_img read more

Qatar Gives Houston 25 Million to Help Reduce Homelessness

first_img Listen Share Abner FletcherSheikh Meshal bin Hamad Al-Thani, Qatar’s Ambassador to the U.S., and Houston Mayor Sylvester Turner.The State of Qatar is giving Houston $2.5 million to help reduce homelessness. The gift comes from the $30 million Qatar Harvey Fund, which the Gulf monarchy set up last year.“Nearly 20 percent of unsheltered homeless individuals and half of those who are homeless for the first time are homeless because of Hurricane Harvey,” said Mayor Sylvester Turner, announcing the donation at City Hall. Turner said the donation will underwrite relief efforts in the five pilot neighborhoods of Houston’s Complete Communities initiative: Acres Homes, Gulfton, Near Northside, Second Ward, and Third Ward.The mayor shared the podium with Qatar’s Ambassador to the U.S., Sheikh Meshal bin Hamad Al-Thani. “We appreciate the relation with the state of Texas and the people of Houston,” said Ambassador Al-Thani, “and we’re grateful for all the support that they give also to our citizens who come here to study and come here to get medical treatment.”This marks Qatar’s second donation to the region this week, following another $2.5 million gift to help reopen the historic Riverside General Hospital. The effort comes as part of a trend of supporting long-term disaster recovery projects. Qatar set up a similar fund in 2005 after Hurricane Katrina.NOTE: The Qatar Harvey Fund’s board includes Dr. Renu Khator, president of the University of Houston. UH holds the license for Houston Public Media. To embed this piece of audio in your site, please use this code: X 00:00 /00:48last_img read more

Metro Shutdown Divides DC Maryland Residents

first_imgThe 29-hour shuttering of the Metrorail system on March 16 and March 17 created no shortage anxiety among some of its passengers who were forced to make other travel plans.A sign at the Rosslyn, Va., Metro station notifies riders that the system is closed for emergency inspection Wednesday, March 16, 2016. An unprecedented safety shutdown of the Metro subway system inconvenienced hundreds of thousands of people in and around the nation’s capital on Wednesday. Federal workers telecommuted or took the day off, children missed school and countless others woke up early to take bus after bus, hail pricey taxis or slog through traffic. (AP Photo/Jessica Gresko)At the Addison Road-Seat Pleasant Metro Station on the Blue and Silver Lines on March 15, people chatted at the bus stations about the Washington Metropolitan Transit Authority’s system-wide shutdown of its subway system, Metrorail.“This is very frustrating,” said Rose Field, a D.C. government employee. “I just started a new job two weeks ago and I have already been late because of Metrorail. My employer doesn’t want to hear that I am late to work because of Metro.”Fields said she would have to resort to alternative arrangements.“Unfortunately I will have to drive to work,” she said. “I will have to get gas to drive into downtown D.C. and pay $30 to park downtown.”While Metro stations offered free parking on March 16 for those traveling by bus, that didn’t help Fields, who said that catching the series of buses needed to get to downtown Washington “wasn’t worth the time.”Christina Horton said the March 16 shutdown was “a real inconvenience.”“I think the decision to close the Metro train system was horrible,” Horton said. “I will have to travel to Reagan National Airport to get to work and in order to do that, I have to take five buses from here. That means to catch my bus I will have to leave two hours earlier than usual.”Robert and Sylvia Currie might have taken the shutdown with a grain of salt.  As private-industry employees, the couple had agreed to telecommute as soon as the announcement of the shutdown was made March 15. Their anxiety, however, reached a feverish pitch when they realized their five children would still have to attend school.The White House is visible as morning traffic builds along 16th Street Northwest, in Washington, Wednesday, March 16, 2016. The Metro subway system that serves the nation’s capital and its Virginia and Maryland suburbs shut down for a full-day for an emergency safety inspection of its third-rail power cables. Making for unusual commute, as the lack of service is forcing some people on the roads, while others are staying home or teleworking. (AP Photo/Andrew Harnik)Residents of Ward 7, the Curries said the maneuvering of children between three different public schools, as well as the University of the District of Columbia, became too cumbersome; they abandoned their attempt in mid-travel.“The unfortunate thing about this is that we could have made better arrangements for the children, but Metrorail does not extend into every neighborhood—nor do the buses,” said Robert Currie. “But when the entire world seemed like it was trying to get into the city, even side streets and shortcuts became backed up. Once the alleyways off of East Capital became full, we had to give up.”The Curries were among thousands of District residents whose daily commute requires using the subway or walking through what can be potentially hazardous areas, including new developments built in Ward 8 along the Suitland Parkway.Donya Eckles and her children normally take the Metro to the Anacostia station, after which two members of the family journey up Martin Luther King Jr. Avenue and two others connect to service near the Navy Yard station.  From the onset of the shutdown, however, Eckles said she feared other methods of travel would not end well for the kids. “I can laugh about it now, but it was just too hectic with so many people on the roads and when buses did come, they were packed in like sardines. These are small kids and it is just not a good idea to have them out in crowds of frustrated people trying to get to work,” Eckles said.  “My youngest, Tennille, became agitated and needed her asthma inhaler and I knew it was not worth the effort.”A rider enters a Metro train in the Gallery Place-Chinatown Metro station Tuesday, March 15, 2016 in Washington. The head of the rail system that serves the nation’s capital and its Virginia and Maryland suburbs says the system will shut down for a full day after a fire near one of the system’s tunnels. (AP Photo/Alex Brandon)Riders take more than 700,000 trips on Metro trains every day as a convenient way to get downtown from Maryland, Virginia and the city’s outer neighborhoods. However, the mid-week shutdown has caused many to re-evaluate their commutes and plan alternatives should the system need to be shut down once again for additional repairs.“We had to get into the city from Arlington which made us leave around 2 a.m.,” said Rolmud Asad, a Subway sandwich shop owner. “We knew enough to have at least two people find lodging around the corner at a hotel so we could still open on time, but those two had to do all of the work until the rest came. Some stores did not fare so lucky and had to close for the day.  All around, that is just bad business for the city.”  However, Marlon Ferrell, a resident of Seat Pleasant, Md., said he was comfortable with the decision to shut down the train system.“I will take the bus to work if I have to,” Ferrell said. “If that doesn’t work out, I will stay home.”On March 16, the entrance of the Capitol Heights Station was closed, with a black and gold metal gate in front of it. While the trains were not running, Metro personnel wouldn’t allow people to go into the station even to put more money on their fare cards.Later that day, Metro General Manager and CEO Paul Wiedefeld and D.C. Council member Jack Evans (D-Ward 2) announced that the Metro would resume full service on March 17. The issues regarding approximately 600 of the system’s third-rail power cables had apparently been resolved.Wiedefeld’s decision to shut down Metrorail has been criticized primarily because of a lack of notice. Despite the critics, Wiedefeld stands by his decision.“When I say safety is our highest priority, I mean it,” he said. “That sometimes means making tough, unpopular decisions, and this is one of those times. I fully recognize the hardship this will cause.”U.S. Sen. Barbara Mikulski (D-Md.) called for an oversight meeting between her senatorial colleagues from the Washington region, Wiedefeld and other leaders responsible for Metro safety in April. Mikulski has been a strong supporter of Metro on Capitol Hill, though she has been known to criticize its shortcomings, particularly relating to its culture of safety.“The action to shutdown down the Metrorail system was dramatic, drastic and disruptive, but necessary to ensure safety is finally being taken seriously at Metro,” she said.last_img read more

Physicists discover evidence of rare hypernucleus a component of strange matter

first_img(PhysOrg.com) — Physicists in Italy have discovered the first evidence of a rare nucleus that doesn’t exist in nature and lives for just 10-10 seconds before decaying. It’s a type of hypernucleus that, like all nuclei, contains an assortment of neutrons and protons. But unlike ordinary nuclei, hypernuclei also contain at least one hyperon, a particle that consists of three quarks, including at least one strange quark. Hypernuclei are thought to form the core of strange matter that may exist in distant parts of the universe, and could also allow physicists to probe the inside of the nucleus. The FINUDA experiment is located at one of the two interaction points of the DAFNE collider at INFN-LNF. As Elena Botta, a lead collaborator in the study, explained, DAFNE produces electron and positron beams. When these beams collide nearly head-on, they produce the phi meson (Φ), which decays with a 50% probability into a charged pair of K and anti-K mesons. FINUDA’s interaction point contains an octagonal prism with eight targets along the sides. When the anti-K meson interacts with a lithium nucleus in one of these targets, it can simultaneously produce a 6ΛH hypernucleus and a π+ meson of a particular energy. If scientists detect this particular meson, they’ve detected a signature of the strange nucleus formation. As Botta explained, 6ΛH production involves a two-step mechanism to decrease the number of protons in the lithium isotope, 6Li, from three to one, which produces hydrogen. Once produced, the neutron-rich 6ΛH hypernuclei slow down inside the target, and after 10-10 seconds they decay at rest into a π- meson and a 6He nucleus. The π- meson also has a particular energy, and scientists can easily detect it to give the signature of the decay. So both the formation and the decay of 6ΛH hypernuclei can be detected by searching for events with the presence of these particular π+ and π- mesons. Strange matterAs the first evidence for 6ΛH hypernuclei, the results could shed light on strange matter, which is hypothesized to exist at the center of ultra-dense neutron stars. The physicists hope to investigate strange matter further by producing strange nuclear systems.“Hypernuclei can be interpreted as the core of strange matter,” Botta told PhysOrg.com. “In particular, the possibility to produce strange nuclear systems containing two Λ particles will allow us to study the interaction between strange particles.”Hypernuclei could also serve as a useful tool to investigate the current model of nuclear structure, in which protons and neutrons are arranged in a stable configuration. “The fact that a hypernucleus has a strange quark does give it interesting characteristics compared to normal nuclei, since it allows the component L particle to act as a probe that can go very deep into the nucleus to test the description that the single particle shell model gives of nuclear matter,” Botta said. “In this respect, the study of hypernuclear physics allows us to get information not directly accessible otherwise.”She added that other hypernuclei with large neutron-to-proton ratios could exist in a stable state, even though ordinary neutron-rich nuclei are theoretically unstable. Neutron-rich hypernuclei seem to be an exception because of the way they modify the structure of a nucleus and increase its lifetime. During an upcoming experiment at the Japan Proton Accelerator Research Complex (J-PARC), physicists plan to search for 6ΛH as well as for other neutron-rich hypernuclei, such as lithium 10 Lambda (10ΛLi). Journal information: Physical Review Letters The particular hypernucleus investigated here, called “hydrogen six Lambda” (6ΛH), was first predicted to exist in 1963. Now, in a study published in a recent issue of Physical Review Letters, physicists working in the FINUDA experiment at the Istituto Nazionale di Fisica Nucleare – Laboratori Nazionali di Frascati (INFN-LNF) in Frascati, Italy, have reported finding the first evidence for the particle. The FINUDA collaboration’s analysis of millions of events has turned up three events for the rare hypernucleus. Strange propertiesAs its name suggests, 6ΛH is a large type of hydrogen nucleus that consists of six particles: four neutrons, one proton, and one Lambda (Λ) hyperon. Since an ordinary hydrogen nucleus contains one proton and no neutrons, hydrogen nuclei that contain one or more neutrons are sometimes called “heavy hydrogen.” The most common types of heavy hydrogen are deuterium (which has one neutron) and tritium (which has two neutrons). Since 6ΛH has four neutrons plus a L hyperon, physicists refer to it as “heavy hyperhydrogen.”The L hyperon, which consists of one up, one down, and one strange quark, does an even more interesting thing to 6ΛH: it increases its lifetime from 10-22 seconds (the lifetime of the hypernucleus core 5H without L) to 10-10 seconds. When scientists first discovered the L hyperon in 1947, they observed a similarly longer lifetime than predicted for this “strange” object. That observation led to the idea of the existence of the strange quark, with strangeness being the property that causes the quark to live so long.DetectionWithout the L hyperon, it would likely be impossible for physicists to directly observe a hydrogen nucleus with four neutrons, since such a heavy isotope is very difficult to produce and has a very short lifetime. Another hypernucleus, 4ΛH, which has two neutrons instead of four, is more easily produced than 6ΛH in similar experiments and has been detected many times. But detecting evidence of 6ΛH is much more difficult. The 27 million collision events analyzed by the FINUDA collaboration represents about one full year of continuous data-taking from an experiment that spanned several years. Theoretically, the formation probability of 6ΛH is at least 100 times smaller than that of 4ΛH. Explore further Nuclear physics incorporates a ‘strange’ flavor More information: M. Agnello, et al. “Evidence for Heavy Hyperhydrogen 6ΛH.” Physical Review Letters 108, 042501 (2012) DOI: 10.1103/PhysRevLett.108.042501 Copyright 2012 PhysOrg.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed in whole or part without the express written permission of PhysOrg.com. A view of one of the three events found by FINUDA: a schematic frontal view of the apparatus is shown, and the two blue lines represent the two ‘pi’ mesons moving along opposite bent trajectories in the magnetic field of the apparatus. Image credit: FINUDA collaboration Citation: Physicists discover evidence of rare hypernucleus, a component of strange matter (2012, February 17) retrieved 18 August 2019 from https://phys.org/news/2012-02-physicists-evidence-rare-hypernucleus-component.html This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more