Subjet multiplicity of gluon and quark jets reconstructed with the k(perpendicular to) algorithm in p(p)over-bar collisions
文献类型：期刊论文
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2002 |
| 卷号 | 65期号:5 |
| 关键词 | DEEP-INELASTIC-SCATTERING PRODUCTION CROSS-SECTION HADRON-COLLISIONS FRAGMENTATION PROPERTIES PARTON DISTRIBUTIONS PERTURBATION-THEORY GLOBAL ANALYSIS COLLIDER 3-JET EVENTS |
| 通讯作者 | Abazov, VM (reprint author), Joint Inst Nucl Res, Dubna, Russia. |
| 英文摘要 | The D empty set Collaboration has studied for the first time the properties of hadron-collider jets reconstructed with a successive-combination algorithm based on relative transverse momenta (k(perpendicular to)) of energy clusters. Using the standard value D = 1.0 of the jet-separation parameter in the k(perpendicular to) algorithm, we find that the p(T) of such jets is higher than the E-T of matched jets reconstructed with cones of radius R = 0.7, by about 5 (8) GeV at p(T) approximate to90 (240) GeV. To examine internal jet structure, the k(perpendicular to) algorithm is applied within D = 0.5 jets to resolve any subjets. The multiplicity of subjets in jet samples at roots = 1800 GeV and 630 GeV is extracted separately for gluons (M (g) ) and quarks (M q), and the ratio of average subjet multiplicities in gluon and quark jets is measured as ([M g] - 1)/([M q] - 1) = 1.84+/-0.15 (stat)(-0.18)(+0.22) (syst). This ratio is in agreement with the expectations from the HERWIG Monte Carlo event generator and a resummation calculation, and with observations in e(+) e(-) annihilations, and is close to the naive prediction for the ratio of color charges of C-A/C-F = 9/4 = 2.25. |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000174548000011 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/212182]  |
| 专题 | 高能物理研究所_实验物理中心 |
| 推荐引用方式 GB/T 7714 | . Subjet multiplicity of gluon and quark jets reconstructed with the k(perpendicular to) algorithm in p(p)over-bar collisions[J]. PHYSICAL REVIEW D,2002,65(5). |
| APA | (2002).Subjet multiplicity of gluon and quark jets reconstructed with the k(perpendicular to) algorithm in p(p)over-bar collisions.PHYSICAL REVIEW D,65(5). |
| MLA | "Subjet multiplicity of gluon and quark jets reconstructed with the k(perpendicular to) algorithm in p(p)over-bar collisions".PHYSICAL REVIEW D 65.5(2002). |
入库方式： OAI收割
来源：高能物理研究所
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