Longitudinal parity-violating asymmetry in hadronic decays of weak bosons in polarized proton collisions

被引：2

作者：

Berger, Edmond L. ^{[1
]}

Nadolsky, Pavel M. ^{[2
]}

机构：

[1] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA

[2] So Methodist Univ, Dept Phys, Dallas, TX 75275 USA

来源：

PHYSICAL REVIEW D | 2008年 / 78卷 / 11期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.78.114010

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the possible measurement of parity-violating spin asymmetries in jet pair production in proton-proton collisions at the Brookhaven Relativistic Heavy Ion Collider (RHIC), with the goal to constrain longitudinally polarized quark and antiquark distribution functions. A measurable asymmetry could be observed in the vicinity of the massive weak W boson resonance, where the parity-violating signal appears above the parity-conserving background and is enhanced by interference of the strong and electroweak production amplitudes. We discuss the potential for such measurements, perhaps the first opportunity to measure a parity-violating asymmetry in proton-proton collisions at RHIC. Sensitivity of this measurement to the polarization of down-type antiquarks is demonstrated.

引用

页数：11

共 50 条

[1] The parity-violating asymmetry in the weak decay of polarized hypernuclei
Bennhold, C
Parreno, A
Ramos, A
INTERSECTIONS BETWEEN PARTICLE AND NUCLEAR PHYSICS - 6TH CONFERENCE, 1997, (412): : 912 - 915
[2] Parity-violating asymmetry of W bosons produced in p-p collisions
Chen, X
Mao, YJ
Ma, BQ
NUCLEAR PHYSICS A, 2005, 759 (1-2) : 188 - 197
[3] PARITY-VIOLATING ASYMMETRY IN PROTON-PROTON SCATTERING
EPSTEIN, GN
PHYSICS LETTERS B, 1975, B 55 (03) : 249 - 251
[4] Parity-violating spin asymmetries in polarized proton-proton scattering with hadronic final states
S. Arnold
K. Goeke
A. Metz
P. Schweitzer
W. Vogelsang
The European Physical Journal Special Topics, 2008, 162 : 31 - 36
[5] Parity-violating spin asymmetries in polarized proton-proton scattering with hadronic final states
Arnold, S.
Goeke, K.
Metz, A.
Schweitzer, P.
Vogelsang, W.
EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, 2008, 162 (1): : 31 - 36
[6] Measurement of the Parity-Violating Longitudinal Single-Spin Asymmetry for W± Boson Production in Polarized Proton-Proton Collisions at √s=500 GeV
Aggarwal, M. M.
Ahammed, Z.
Alakhverdyants, A. V.
Alekseev, I.
Alford, J.
Anderson, B. D.
Anson, C. D.
Arkhipkin, D.
Averichev, G. S.
Balewski, J.
Beavis, D. R.
Bellwied, R.
Betancourt, M. J.
Betts, R. R.
Bhasin, A.
Bhati, A. K.
Bichsel, H.
Bielcik, J.
Bielcikova, J.
Biritz, B.
Bland, L. C.
Borowski, W.
Bouchet, J.
Braidot, E.
Brandin, A. V.
Bridgeman, A.
Brovko, S. G.
Bruna, E.
Bueltmann, S.
Bunzarov, I.
Burton, T. P.
Cai, X. Z.
Caines, H.
de la Barca Sanchez, M. Calderon
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chajecki, Z.
Chaloupka, P.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, J. Y.
Cheng, J.
Cherney, M.
Chikanian, A.
Choi, K. E.
Christie, W.
Chung, P.
Codrington, M. J. M.
PHYSICAL REVIEW LETTERS, 2011, 106 (06)
[7] Measurement of the parity-violating longitudinal single-spin asymmetry for W± boson production in polarized proton-proton collisions at √s=500GeV
Igo, G.
DIFFRACTION 2010: INTERNATIONAL WORKSHOP ON DIFFRACTION IN HIGH ENERGY PHYSICS, 2011, 1350
[8] Hadronic weak charges and parity-violating forward Compton scattering
Gorchtein, Mikhail
Spiesberger, Hubert
PHYSICAL REVIEW C, 2016, 94 (05)
[9] PARITY-VIOLATING ASYMMETRY IN ELECTRON-POLARIZED DEUTERON SCATTERING
KONASHI, H
FURUTANI, H
PROGRESS OF THEORETICAL PHYSICS, 1981, 65 (06): : 2064 - 2066
[10] Parity-violating longitudinal response
Barbaro, MB
DePace, A
Donnelly, TW
Molinari, A
NUCLEAR PHYSICS A, 1996, 598 (04) : 503 - 514

← 1 2 3 4 5 →