Measurement of B(B)over-bar angular correlations based on secondary vertex reconstruction at root s=7 TeV
文献类型：期刊论文
| 作者 | CMS Collaboration |
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2011 |
| 期号 | 3 |
| 关键词 | CARLO GENERATOR CASCADE CCFM |
| 通讯作者 | Khachatryan, V (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia. |
| 英文摘要 | A measurement of the angular correlations between beauty and anti-beauty hadrons (B (B) over bar) produced in pp collisions at a centre-of-mass energy of 7 TeV at the CERN LHC is presented, probing for the first time the region of small angular separation. The B hadrons are identified by the presence of displaced secondary vertices from their decays. The B hadron angular separation is reconstructed from the decay vertices and the primary-interaction vertex. The differential B (B) over bar production cross section, measured from a data sample collected by CMS and corresponding to an integrated luminosity of 3.1 pb(-1), shows that a sizable fraction of the B (B) over bar pairs are produced with small opening angles. These studies provide a test of QCD and further insight into the dynamics of b (b) over bar production. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Particles & Fields |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000289295300064 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213036]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | CMS Collaboration. Measurement of B(B)over-bar angular correlations based on secondary vertex reconstruction at root s=7 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2011(3). |
| APA | CMS Collaboration.(2011).Measurement of B(B)over-bar angular correlations based on secondary vertex reconstruction at root s=7 TeV.JOURNAL OF HIGH ENERGY PHYSICS(3). |
| MLA | CMS Collaboration."Measurement of B(B)over-bar angular correlations based on secondary vertex reconstruction at root s=7 TeV".JOURNAL OF HIGH ENERGY PHYSICS .3(2011). |
入库方式： OAI收割
来源：高能物理研究所
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