Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at s=200 GeV
文献类型：期刊论文
| 作者 | Abelev, B. I.1; Aggarwal, M. M.31; Ahammed, Z.48; Alakhverdyants, A. V.17; Anderson, B. D.18; Arkhipkin, D.4; Averichev, G. S.17; Balewski, J.22; Barannikova, O.1; Barnby, L. S.3 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2009-12-01 |
| 卷号 | 80页码:7 |
| ISSN号 | 1550-7998 |
| DOI | 10.1103/PhysRevD.80.111108 |
| 英文摘要 | We report a measurement of the longitudinal double-spin asymmetry A(LL) and the differential cross section for inclusive pi(0) production at midrapidity in polarized proton collisions at s=200 GeV. The cross section was measured over a transverse momentum range of 1 < p(T)< 17 GeV/c and found to be in good agreement with a next-to-leading order perturbative QCD calculation. The longitudinal double-spin asymmetry was measured in the range of 3.7 < p(T)< 11 GeV/c and excludes a maximal positive gluon polarization in the proton. The mean transverse momentum fraction of pi(0)'s in their parent jets was found to be around 0.7 for electromagnetically triggered events. |
| WOS关键词 | PARTON DISTRIBUTIONS ; NUCLEON ; PHOTOPRODUCTION ; MOMENTUM ; HADRONS ; JET |
| 资助项目 | U. S. NSF ; Sloan Foundation, ; DFG ; CNRS/IN2P3 ; STFC ; EPSRC of the United Kingdom ; FAPESP CNPq of Brazil ; Ministry of Ed. and Sci. of the Russian Federation ; NNSFC ; CAS ; MoST ; MoE of China ; MSMT of the Czech Republic ; FOM ; NWO of the Netherlands ; DAE ; DST ; CSIR of India ; Polish Ministry of Science and Higher Education ; Korea Research Foundation ; Ministry of Science, Education, and Sports of the Republic of Croatia ; Russian Ministry of Science and Technology ; RosAtom of Russia |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 出版者 | AMER PHYSICAL SOC |
| WOS记录号 | WOS:000273233000008 |
| 资助机构 | U. S. NSF ; Sloan Foundation, ; DFG ; CNRS/IN2P3 ; STFC ; EPSRC of the United Kingdom ; FAPESP CNPq of Brazil ; Ministry of Ed. and Sci. of the Russian Federation ; NNSFC ; CAS ; MoST ; MoE of China ; MSMT of the Czech Republic ; FOM ; NWO of the Netherlands ; DAE ; DST ; CSIR of India ; Polish Ministry of Science and Higher Education ; Korea Research Foundation ; Ministry of Science, Education, and Sports of the Republic of Croatia ; Russian Ministry of Science and Technology ; RosAtom of Russia |
| 源URL | [http://119.78.100.186/handle/113462/30950]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Abelev, B. I. |
| 作者单位 | 1.Univ Illinois, Chicago, IL 60607 USA 2.Argonne Natl Lab, Argonne, IL 60439 USA 3.Univ Birmingham, Birmingham, W Midlands, England 4.Brookhaven Natl Lab, Upton, NY 11973 USA 5.Univ Calif Berkeley, Berkeley, CA 94720 USA 6.Univ Calif Davis, Davis, CA 95616 USA 7.Univ Calif Los Angeles, Los Angeles, CA 90095 USA 8.Univ Estadual Campinas, Sao Paulo, Brazil 9.Creighton Univ, Omaha, NE 68178 USA 10.Czech Tech Univ, FNSPE, Prague 11519, Czech Republic |
| 推荐引用方式 GB/T 7714 | Abelev, B. I.,Aggarwal, M. M.,Ahammed, Z.,et al. Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at s=200 GeV[J]. PHYSICAL REVIEW D,2009,80:7. |
| APA | Abelev, B. I..,Aggarwal, M. M..,Ahammed, Z..,Alakhverdyants, A. V..,Anderson, B. D..,...&Zoulkarneeva, Y..(2009).Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at s=200 GeV.PHYSICAL REVIEW D,80,7. |
| MLA | Abelev, B. I.,et al."Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at s=200 GeV".PHYSICAL REVIEW D 80(2009):7. |
入库方式： OAI收割
来源：近代物理研究所
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