Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김용균 | - |
dc.date.accessioned | 2018-01-31T05:58:10Z | - |
dc.date.available | 2018-01-31T05:58:10Z | - |
dc.date.issued | 2011-02 | - |
dc.identifier.citation | PHYSICAL REVIEW LETTERS, v. 106, NO 6, Page. - | en_US |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.issn | 1079-7114 | - |
dc.identifier.uri | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.106.062001 | - |
dc.description.abstract | Large parity-violating longitudinal single-spin asymmetries A(L)(e+) = 0.86(-0.14)(+0.30) and Ae(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. The observed electron and positron yields were used to estimate W-+/- boson production cross sections for the e(+/-) channels of sigma(pp -> W+X) X BR(W+ -> e(+) nu(e)) = 144.1 +/- 21.2(stat)(-10.3)(+3.4)(syst) +/- 21.6(norm) pb, and sigma(pp -> W-X) X BR(W- -> e(-) (nu) over bar (e)) = 3.17 +/- 12.1(stat)(-8.2)(+10.1)(syst) +/- 4.8(norm) pb. | en_US |
dc.description.sponsorship | We thank the Collider-Accelerator Department for developing the unique technologies enabling these measurements and the Physics Department staff at BNL for vital contributions. We also thank D. de Florian, B. Surrow, and J. Balewski for helpful discussions. We acknowledge support from the Office of Nuclear Physics in DOE Office of Science and NSF (USA), MEXT and JSPS (Japan), CNPq and FAPESP (Brazil), NSFC (China), MSMT (Czech Republic), IN2P3/CNRS and CEA (France), BMBF, DAAD, and AvH (Germany), OTKA (Hungary), DAE and DST (India), ISF (Israel), NRF and WCU (Korea), MES, RAS, and FAAE (Russia), VR and KAW (Sweden), U.S. CRDF for the FSU, Hungary-U.S. HAESF, and U.S.-Israel BSF. | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMERICAN PHYSICAL SOC | en_US |
dc.subject | PARTON DISTRIBUTIONS | en_US |
dc.subject | PHYSICS | en_US |
dc.subject | SCATTERING | en_US |
dc.subject | PROTON | en_US |
dc.title | Cross Section and Parity-Violating Spin Asymmetries of W-+/- Boson Production in Polarized p plus p Collisions at root s=500 GeV | en_US |
dc.type | Article | en_US |
dc.relation.no | 6 | - |
dc.relation.volume | 106 | - |
dc.identifier.doi | 10.1103/PhysRevLett.106.062001 | - |
dc.relation.page | - | - |
dc.relation.journal | PHYSICAL REVIEW LETTERS | - |
dc.contributor.googleauthor | Adare, A | - |
dc.contributor.googleauthor | Andrews, KR | - |
dc.contributor.googleauthor | Singh, BK | - |
dc.contributor.googleauthor | Mohanty, AK | - |
dc.contributor.googleauthor | Bai, M | - |
dc.contributor.googleauthor | Aschenauer, EC | - |
dc.contributor.googleauthor | Barish, KN | - |
dc.contributor.googleauthor | Finger, M | - |
dc.contributor.googleauthor | Choi, JB | - |
dc.contributor.googleauthor | Kim, YK | - |
dc.relation.code | 2011207605 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF ENGINEERING[S] | - |
dc.sector.department | DEPARTMENT OF NUCLEAR ENGINEERING | - |
dc.identifier.pid | ykkim4 | - |
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