Inclusive j, psi' and chi(c) production in hadronic z decays
文献类型：期刊论文
| 作者 | Acciarri, M; Adriani, O; AguilarBenitez, M; Ahlen, S; Alcaraz, J; Alemanni, G; Allaby, J; Aloisio, A; Alverson, G; Alviggi, MG |
| 刊名 | Physics letters b
 |
| 出版日期 | 1997-09-04 |
| 卷号 | 407期号:3-4页码:351-360 |
| ISSN号 | 0370-2693 |
| 通讯作者 | Acciarri, m() |
| 英文摘要 | We report on measurements of the inclusive production of j, psi' and chi(c) mesons in hadronic z decays, based on 3.2 million hadronic events collected using the l3 detector at lep. the j and psi' mesons are reconstructed through their decays into lepton pairs, while the chi(c) mesons are reconstructed via the decay mode chi(c) --> j + gamma. the measured branching fractions are: br(z --> j + x) = (3.40 +/- 0.23 (stat.) +/- 0.27 (sys.)) x 10(-3), br(z --> psi' + x) = (1.6 +/- 0.5 (stat.) +/- 0.3 (sys.)) x 10(-3) br(z --> chi(cl) + x) = (2.7 +/- 0.6 (stat.) +/- 0.5 (sys.)) x 10(-3). in the absence of a clear chi(c2) signal, the upper limit at 90% c.l. is set: br(z --> chi(c2) + x) < 3.2 x 10(-3). (c) 1997 elsevier science b.v. |
| WOS关键词 | LUND MONTE-CARLO ; J/PSI-PRODUCTION ; JET FRAGMENTATION ; HEAVY QUARKONIUM ; L3 EXPERIMENT ; Z(0) DECAYS ; E+E-PHYSICS ; CHARMONIUM ; LEP ; COLLISIONS |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:A1997XX54600024 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176253 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Acciarri, M |
| 作者单位 | 1.RHEIN WESTFAL TH AACHEN, INST PHYS 3, D-52056 AACHEN, GERMANY 2.NIKHEF, NATL INST HIGH ENERGY PHYS, NL-1009 DB AMSTERDAM, NETHERLANDS 3.UNIV AMSTERDAM, NL-1009 DB AMSTERDAM, NETHERLANDS 4.UNIV MICHIGAN, ANN ARBOR, MI 48109 USA 5.LAB ANNECY LE VIEUX PHYS PARTICULES, LAPP, CNRS, IN2P3, F-74941 ANNECY LE VIEUX, FRANCE 6.JOHNS HOPKINS UNIV, BALTIMORE, MD 21218 USA 7.UNIV BASEL, INST PHYS, CH-4056 BASEL, SWITZERLAND 8.INST HIGH ENERGY PHYS, BEIJING 100039, PEOPLES R CHINA 9.HUMBOLDT UNIV BERLIN, D-10099 BERLIN, GERMANY 10.UNIV BOLOGNA, I-40126 BOLOGNA, ITALY |
| 推荐引用方式 GB/T 7714 | Acciarri, M,Adriani, O,AguilarBenitez, M,et al. Inclusive j, psi' and chi(c) production in hadronic z decays[J]. Physics letters b,1997,407(3-4):351-360. |
| APA | Acciarri, M.,Adriani, O.,AguilarBenitez, M.,Ahlen, S.,Alcaraz, J.,...&Ziegler, F.(1997).Inclusive j, psi' and chi(c) production in hadronic z decays.Physics letters b,407(3-4),351-360. |
| MLA | Acciarri, M,et al."Inclusive j, psi' and chi(c) production in hadronic z decays".Physics letters b 407.3-4(1997):351-360. |
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