Observation of gamma(1s) pair production in proton-proton collisions at root s=8 tev
文献类型：期刊论文
| 作者 | Khachatryan, V.1; Sirunyan, A. M.; Tumasyan, A.; Adam, W.2; Asilar, E.2; Bergauer, T.2; Brandstetter, J.2; Brondolin, E.2; Dragicevic, M.2; Eroe, J.2 |
| 刊名 | Journal of high energy physics
 |
| 出版日期 | 2017-05-03 |
| 期号 | 5页码:34 |
| 关键词 | Hadron-hadron scattering (experiments) Quarkonium |
| ISSN号 | 1029-8479 |
| DOI | 10.1007/jhep05(2017)013 |
| 通讯作者 | Khachatryan, v.() |
| 英文摘要 | Pair production of gamma(1s) mesons is observed at the lhc in proton-proton collisions at root s = 8 tev by the cms experiment in a data sample corresponding to an integrated luminosity of 20.7 fb(-1). both gamma(1s) candidates are fully reconstructed via their decays to mu(+) mu(-). the fiducial acceptance region is defined by an absolute gamma(1s) rapidity smaller than 2.0. the fiducial cross section for the production of gamma(1s) pairs, assuming that both mesons decay isotropically, is measured to be 68.8 +/- 12.7 (stat) +/- 7.4 (syst) +/- 2.8 (b) pb, where the third uncertainty comes from the uncertainty in the branching fraction of gamma(1s) decays to mu(+) mu(-). assuming instead that the gamma(1s) mesons are produced with different polarizations leads to variations in the measured cross section in the range from 38% to +36%. |
| WOS关键词 | DOUBLE PARTON SCATTERINGS ; HADRONIC PRODUCTION ; SMALL-X ; QCD ; QUARKONIUM ; COHERENCE ; MESON |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000400871100001 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2177439 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Khachatryan, V. |
| 作者单位 | 1.Yerevan Phys Inst, Yerevan, Armenia 2.Inst Hochenergiephys, Vienna, Austria 3.Inst Nucl Problems, Minsk, Byelarus 4.Natl Ctr Particle & High Energy Phys, Minsk, Byelarus 5.Univ Antwerp, Antwerp, Belgium 6.Vrije Univ Brussel, Brussels, Belgium 7.Univ Libre Bruxelles, Brussels, Belgium 8.Univ Ghent, Ghent, Belgium 9.Catholic Univ Louvain, Louvain, Belgium 10.Univ Mons, Mons, Belgium |
| 推荐引用方式 GB/T 7714 | Khachatryan, V.,Sirunyan, A. M.,Tumasyan, A.,et al. Observation of gamma(1s) pair production in proton-proton collisions at root s=8 tev[J]. Journal of high energy physics,2017(5):34. |
| APA | Khachatryan, V..,Sirunyan, A. M..,Tumasyan, A..,Adam, W..,Asilar, E..,...&Magana Villalba, R..(2017).Observation of gamma(1s) pair production in proton-proton collisions at root s=8 tev.Journal of high energy physics(5),34. |
| MLA | Khachatryan, V.,et al."Observation of gamma(1s) pair production in proton-proton collisions at root s=8 tev".Journal of high energy physics .5(2017):34. |
入库方式： iSwitch采集
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。