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Cross section and parity-violating spin asymmetries of W± boson production in polarized p+p collisions at √s=500GeV

Title
Cross section and parity-violating spin asymmetries of W± boson production in polarized p+p collisions at √s=500GeV
Authors
Adare A.Afanasiev S.Aidala C.Ajitanand N.N.Akiba Y.Akimoto R.Alexander J.Al-Ta'Ani H.Andrews K.R.Angerami A.Aoki K.Apadula N.Appelt E.Aramaki Y.Armendariz R.Aschenauer E.C.Awes T.C.Azmoun B.Babintsev V.Bai M.Bannier B.Barish K.N.Bassalleck B.Basye A.T.Bathe S.Baublis V.Baumann C.Bazilevsky A.Belmont R.Ben-Benjamin J.Bennett R.Berdnikov A.Berdnikov Y.Blau D.S.Bok J.S.Boyle K.Brooks M.L.Broxmeyer D.Buesching H.Bumazhnov V.Bunce G.Butsyk S.Campbell S.Caringi A.Castera P.Chen C.-H.Chi C.Y.Chiu M.Choi I.J.Choi J.B.Choudhury R.K.Christiansen P.Chujo T.Chvala O.Cianciolo V.Citron Z.Cole B.A.Conesa Del Valle Z.Connors M.Csanad M.Csorgo T.Dairaku S.Datta A.David G.Dayananda M.K.Denisov A.Deshpande A.Desmond E.J.Dharmawardane K.V.Dietzsch O.Dion A.Donadelli M.D'Orazio L.Drapier O.Drees A.Drees K.A.Durham J.M.Durum A.Efremenko Y.V.Engelmore T.Enokizono A.En'Yo H.Esumi S.Fadem B.Fields D.E.Finger M.Fleuret F.Fokin S.L.Frantz J.E.Franz A.Frawley A.D.Fukao Y.Fusayasu T.Garishvili I.Glenn A.Gong X.Gonin M.Goto Y.Granier De Cassagnac R.Grau N.Greene S.V.Grosse Perdekamp M.Gunji T.Guo L.Gustafsson H.-A.Haggerty J.S.Hahn K.I.Hamagaki H.Hamblen J.Hanks J.Han R.Harper C.Hashimoto K.Haslum E.Hayano R.Hemmick T.K.Hester T.He X.Hill J.C.Hollis R.S.Holzmann W.Homma K.Hong B.Horaguchi T.Hori Y.Hornback D.Huang S.Ichihara T.Ichimiya R.Iinuma H.Ikeda Y.Imai K.Inaba M.Iordanova A.Isenhower D.Ishihara M.Issah M.Isupov A.Ivanischev D.Iwanaga Y.Jacak B.V.Jia J.Jiang X.Johnson B.M.Jones T.Joo K.S.Jouan D.Kamin J.Kaneti S.Kang B.H.Kang J.H.Kang J.S.Kapustinsky J.Karatsu K.Kasai M.Kawall D.Kazantsev A.V.Kempel T.Khanzadeev A.Kijima K.M.Kim B.I.Kim D.J.Kim E.J.Kim Y.-J.Kim Y.K.Kinney E.Kiss A.Kistenev E.Kleinjan D.Kline P.Kochenda L.Komkov B.Konno M.Koster J.Kotov D.Kral A.Kunde G.J.Kurita K.Kurosawa M.Kwon Y.Kyle G.S.Lacey R.Lai Y.S.Lajoie J.G.Lebedev A.Lee D.M.Lee J.Lee K.B.Lee K.S.Lee S.H.Lee S.R.Leitch M.J.Leite M.A.L.Lichtenwalner P.Lim S.H.Linden Levy L.A.Litvinenko A.Liu H.Liu M.X.Li X.Love B.Lynch D.Maguire C.F.Makdisi Y.I.Malakhov A.Manion A.Manko V.I.Mannel E.Mao Y.Masui H.McCumber M.McGaughey P.L.McGlinchey D.McKinney C.Means N.Mendoza M.Meredith B.Miake Y.Mibe T.Mignerey A.C.Miki K.Milov A.Mitchell J.T.Miyachi Y.Mohanty A.K.Moon H.J.Morino Y.Morreale A.Morrison D.P.Motschwiller S.Moukhanova T.V.Murakami T.Murata J.Nagamiya S.Nagle J.L.Naglis M.Nagy M.I.Nakagawa I.Nakamiya Y.Nakamura K.R.Nakamura T.Nakano K.Newby J.Nguyen M.Nihashi M.Nouicer R.Nyanin A.S.Oakley C.O'Brien E.Ogilvie C.A.Okada K.Oka M.Oskarsson A.Ouchida M.Ozawa K.Pak R.Pantuev V.Papavassiliou V.Park B.H.Park I.H.Park S.K.Pate S.F.Pei H.Peng J.-C.Pereira H.Peresedov V.Peressounko D.Y.Petti R.Pinkenburg C.Pisani R.P.Proissl M.Purschke M.L.Qu H.Rak J.Ravinovich I.Read K.F.Reygers K.Riabov V.Riabov Y.Richardson E.Roach D.Roche G.Rolnick S.D.Rosati M.Rosendahl S.S.E.Rukoyatkin P.Sahlmueller B.Saito N.Sakaguchi T.Samsonov V.Sano S.Sarsour M.Sato T.Savastio M.Sawada S.Sedgwick K.Seidl R.Seto R.Sharma D.Shein I.Shibata T.-A.Shigaki K.Shim H.H.Shimomura M.Shoji K.Shukla P.Sickles A.Silva C.L.Silvermyr D.Silvestre C.Sim K.S.Singh B.K.Singh C.P.Singh V.Slunecka M.Sodre T.Soltz R.A.Sondheim W.E.Sorensen S.P.Sourikova I.V.Stankus P.W.Stenlund E.Stoll S.P.Sugitate T.Sukhanov A.Sun J.Sziklai J.Takagui E.M.Takahara A.Taketani A.Tanabe R.Tanaka Y.Taneja S.Tanida K.Tannenbaum M.J.Tarafdar S.Taranenko A.Tennant E.Themann H.Thomas D.Togawa M.Tomasek L.Tomasek M.Torii H.Towell R.S.Tserruya I.Tsuchimoto Y.Utsunomiya K.Vale C.Van Hecke H.W.Vazquez-Zambrano E.Veicht A.Velkovska J.Vertesi R.Virius M.Vossen A.Vrba V.Vznuzdaev E.Wang X.R.Watanabe D.Watanabe K.Watanabe Y.Watanabe Y.S.Wei F.Wei R.Wessels J.White S.N.Winter D.Woody C.L.Wright R.M.Wysocki M.Yamaguchi Y.L.Yang R.Yanovich A.Ying J.Yokkaichi S.Yoo J.S.Young G.R.Younus I.You Z.Yushmanov I.E.Zajc W.A.Zelenski A.Zhou S.Zolin L.
Ewha Authors
한인식박일흥
SCOPUS Author ID
한인식scopus
Issue Date
2011
Journal Title
Physical Review Letters
ISSN
0031-9007JCR Link
Citation
vol. 106, no. 6
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Large parity-violating longitudinal single-spin asymmetries ALe +=-0.86-0.14+0.30 and ALe-=0.88-0.71+0.12 are observed for inclusive high transverse momentum electrons and positrons in polarized p+p collisions at a center-of-mass energy of √s=500GeV with the PHENIX detector at RHIC. These e± come mainly from the decay of W± and Z0 bosons, and their asymmetries directly demonstrate parity violation in the couplings of the W± to the light quarks. The observed electron and positron yields were used to estimate W ± boson production cross sections for the e± channels of σ(pp→W+X)×BR(W+→e +νe)=144.1±21.2(stat)-10.3+3.4(syst)±21. 6(norm)pb, and σ(pp→W-X)×BR(W -→e-ν̄e)=31.7±12.1(stat)-8. 2+10.1(syst)±4.8(norm)pb. © 2011 American Physical Society.
DOI
10.1103/PhysRevLett.106.062001
Appears in Collections:
사범대학 > 과학교육과 > Journal papers
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