Measurements of D-0 and D* production in p plus p collisions at root s=200 GeV
文献类型：期刊论文
| 作者 | Adamczyk, L.1; Agakishiev, G.19; Aggarwal, M. M.30; Ahammed, Z.49; Alakhverdyants, A. V.19; Alekseev, I.17; Alford, J.20; Anderson, B. D.20; Anson, C. D.28; Arkhipkin, D.3 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2012-10-31 |
| 卷号 | 86 |
| ISSN号 | 1550-7998 |
| DOI | 10.1103/PhysRevD.86.072013 |
| 文献子类 | Article |
| 英文摘要 | We report measurements of charmed-hadron (D-0, D*) production cross sections at midrapidity in p + p collisions at a center-of-mass energy of 200 GeV by the STAR experiment. Charmed hadrons were reconstructed via the hadronic decays D-0 -> K- pi(+), D*(+) -> D-0 pi(+) -> K-pi(+)pi(+) and their charge conjugates, covering the p(T) range of 0.6-2.0 and 2.0-6.0 GeV/c for D-0 and D*(+), respectively. From this analysis, the charm-pair production cross section at midrapidity is d sigma/dy vertical bar(c (c) over bar)(y-0) = 170+/-45(stat)(-59)(+38()sys) mu b. The extracted charm-pair cross section is compared to perturbative QCD calculations. The transverse momentum differential cross section is found to be consistent with the upper bound of a fixed-order next-to-leading logarithm calculation. |
| WOS关键词 | ELECTROMAGNETIC CALORIMETER ; STAR ; HADRONIZATION ; CHARM |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000310436300002 |
| 出版者 | AMER PHYSICAL SOC |
| 源URL | [http://119.78.100.186/handle/113462/48987]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Adamczyk, L. |
| 作者单位 | 1.AGH Univ Sci & Technol, Krakow, Poland 2.Argonne Natl Lab, Argonne, IL 60439 USA 3.Brookhaven Natl Lab, Upton, NY 11973 USA 4.Univ Calif Berkeley, Berkeley, CA 94720 USA 5.Univ Calif Davis, Davis, CA 95616 USA 6.Univ Calif Los Angeles, Los Angeles, CA 90095 USA 7.Univ Estadual Campinas, Sao Paulo, Brazil 8.Cent China Normal Univ HZNU, Wuhan 430079, Peoples R China 9.Univ Illinois, Chicago, IL 60607 USA 10.Creighton Univ, Omaha, NE 68178 USA |
| 推荐引用方式 GB/T 7714 | Adamczyk, L.,Agakishiev, G.,Aggarwal, M. M.,et al. Measurements of D-0 and D* production in p plus p collisions at root s=200 GeV[J]. PHYSICAL REVIEW D,2012,86. |
| APA | Adamczyk, L..,Agakishiev, G..,Aggarwal, M. M..,Ahammed, Z..,Alakhverdyants, A. V..,...&Collaboration, Star.(2012).Measurements of D-0 and D* production in p plus p collisions at root s=200 GeV.PHYSICAL REVIEW D,86. |
| MLA | Adamczyk, L.,et al."Measurements of D-0 and D* production in p plus p collisions at root s=200 GeV".PHYSICAL REVIEW D 86(2012). |
入库方式： OAI收割
来源：近代物理研究所
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