Single Spin Physics with W Bosons in 500 GeV p ↑ plus p Collisions in the PHENIX Experiment

被引：0

作者：

Kistenev, E. ^{[1
]}

机构：

[1] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

来源：

19TH PARTICLES AND NUCLEI INTERNATIONAL CONFERENCE (PANIC11) | 2012年 / 1441卷

关键词：

parity; W-boson; PHENIX; RHIC; PARTON DISTRIBUTIONS;

D O I：

10.1063/1.3700526

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Large parity violating longitudinal single-spin asymmetries A(l)(e(+)) = 0.86(-0.14)(+0.30) and A(l)(e(-)) = 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 root s = 500 GeV with the PHENIX detector at RHIC. These e(+/-) come mainly from the decay of W-+/- and Z(0) bosons, and their asymmetries directly demonstrate parity violation in the couplings of the W-+/- to the light quarks.

引用

页码：255 / 257

页数：3

共 16 条

[1] Abbott B, 2000, PHYS REV D, V61, DOI 10.1103/PhysRevD.61.072001
[2] First measurements of inclusive W and Z cross sections from Run II of the Fermilab Tevatron Collider -: art. no. 091803
Acosta, D
Affolder, T
Akimoto, T
Albrow, MG
Ambrose, D
Amerio, S
Amidei, D
Anastassov, A
Anikeev, K
Annovi, A
Antos, J
Aoki, M
Apollinari, G
Arisawa, T
Arguin, JF
Artikov, A
Ashmanskas, W
Attal, A
Azfar, F
Azzi-Bacchetta, P
Bacchetta, N
Bachacou, H
Badgett, W
Barbaro-Galtieri, A
Barker, GJ
Barnes, VE
Barnett, BA
Baroiant, S
Barone, M
Bauer, G
Bedeschi, F
Behari, S
Belforte, S
Bellettini, G
Bellinger, J
Benjamin, D
Beretvas, A
Bhatti, A
Binkley, M
Bisello, D
Bishai, M
Blair, RE
Blocker, C
Bloom, K
Blumenfeld, B
Bocci, A
Bodek, A
Bolla, G
Bolshov, A
Booth, PSL
[J]. PHYSICAL REVIEW LETTERS, 2005, 94 (09)
[3] Cross Section and Parity-Violating Spin Asymmetries of W± Boson Production in Polarized p plus p Collisions at √s=500 Gev
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.
[J]. PHYSICAL REVIEW LETTERS, 2011, 106 (06)
[4] PHENIX detector overview
Adcox, K
Adler, SS
Aizama, M
Ajitanand, NN
Akiba, Y
Akikawa, H
Alexander, J
Al-Jamel, A
Allen, M
Alley, G
Amirikas, R
Aphecetche, L
Arai, Y
Archuleta, JB
Archuleta, JR
Armendariz, R
Armijo, V
Aronson, SH
Autrey, D
Averbeck, R
Awes, TC
Azmoun, B
Baldisseri, A
Banning, J
Barish, KN
Barker, AB
Barnes, PD
Barrette, J
Barta, F
Bassalleck, B
Bathe, S
Batsouli, S
Baublis, VV
Bazilevsky, A
Begay, R
Behrendt, J
Belikov, S
Belkin, R
Bellaiche, FG
Belyaev, ST
Bennett, MJ
Berdnikov, Y
Bhaganatula, S
Biggs, JC
Bland, AW
Blume, C
Bobrek, M
Boissevain, JG
Boose, S
Borel, H
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003, 499 (2-3) : 469 - 479
[5] ALITTI J, 1990, Z PHYS C PART FIELDS, V47, P11, DOI 10.1007/BF01551906
[6] [Anonymous], 1989, Z PHYS C PART FIELDS, V44, P15, DOI 10.1007/BF01548582
[7] PARTON DISTRIBUTIONS AND PARITY-VIOLATING ASYMMETRIES IN W(+/-) AND Z-PRODUCTION AT RHIC
BOURRELY, C
SOFFER, J
[J]. PHYSICS LETTERS B, 1993, 314 (01) : 132 - 138
[8] Prospects for spin physics at RHIC
Bunce, G
Saito, N
Soffer, J
Vogelsan, W
[J]. ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, 2000, 50 : 525 - 575
[9] Helicity parton distributions from spin asymmetries in W-boson production at RHIC
de Florian, Daniel
Vogelsang, Werner
[J]. PHYSICAL REVIEW D, 2010, 81 (09):
[10] THE G1 PROBLEM - DEEP INELASTIC ELECTRON-SCATTERING AND THE SPIN OF THE PROTON
JAFFE, RL
MANOHAR, A
[J]. NUCLEAR PHYSICS B, 1990, 337 (03) : 509 - 546

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