A measurement of tau-polarization at lep
文献类型：期刊论文
| 作者 | ACCIARRI, M; ADAMS, A; ADRIANI, O; AGUILARBENITEZ, M; AHLEN, S; ALCARAZ, J; ALOISIO, A; ALVERSON, G; ALVIGGI, MG; AMBROSI, G |
| 刊名 | Physics letters b
 |
| 出版日期 | 1994-12-29 |
| 卷号 | 341期号:2页码:245-256 |
| ISSN号 | 0370-2693 |
| 通讯作者 | Acciarri, m() |
| 英文摘要 | With a data sample of 86 000 z --> tau(+)tau>(-)(gamma) events collected in 1990 through 1993 we have measured the polarization of tau-leptons as a function of the production polar angle using the following 1-prong tau decay modes: tau(-) --> e(-)<(nu)over bar>(e) nu(tau),tau(-) --> mu(-)<(nu)over bar>(mu)nu(tau), tau(-) --> pi(-)(k-)nu(tau),tau(-) --> rho(-)nu(tau) and tau(-) --> a(1)(-)nu(tau). we obtain for the ratio of vector to axial-vector weak neutral couplings for electrons gve/gae = 0.0791 +/- 0.0099(stat) +/- 0.0025(syst) and taus gv tau/ga tau = 0.0752 +/- 0.0063(stat) +/- 0.0045(syst) consistent with the hypothesis of e - tau universality. assuming universality of the e - tau neutral current we determine the effective electroweak mixing angle to be sin(2) theta(w)(eff) = 0.2309 +/- 0.0016. |
| WOS关键词 | FERMION PAIR PRODUCTION ; TAU-POLARIZATION ; QED CORRECTIONS ; MONTE-CARLO ; Z-RESONANCE ; Z-PEAK ; DECAY ; LEPTONS ; CONSTRUCTION ; PARAMETERS |
| 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:A1994PY49600018 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2175769 |
| 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 1, D-52056 AACHEN, GERMANY 2.RHEIN WESTFAL TH AACHEN, INST PHYS 3, D-52056 AACHEN, GERMANY 3.NATL INST NUCL & HIGH ENERGY PHYS, 1009 DB AMSTERDAM, NETHERLANDS 4.UNIV MICHIGAN, ANN ARBOR, MI 48109 USA 5.LAB ANNECY LE VIEUX PHYS PARTICULES, CNRS, IN2P3, F-74941 ANNECY LE VIEUX, FRANCE 6.JOHNS HOPKINS UNIV, BALTIMORE, MD 21218 USA 7.INST HIGH ENERGY PHYS, BEIJING 100039, PEOPLES R CHINA 8.HUMBOLDT UNIV BERLIN, D-10099 BERLIN, GERMANY 9.IST NAZL FIS NUCL, I-40126 BOLOGNA, ITALY 10.TATA INST FUNDAMENTAL RES, BOMBAY 400005, MAHARASHTRA, INDIA |
| 推荐引用方式 GB/T 7714 | ACCIARRI, M,ADAMS, A,ADRIANI, O,et al. A measurement of tau-polarization at lep[J]. Physics letters b,1994,341(2):245-256. |
| APA | ACCIARRI, M.,ADAMS, A.,ADRIANI, O.,AGUILARBENITEZ, M.,AHLEN, S.,...&VANDERZWAAN, BCC.(1994).A measurement of tau-polarization at lep.Physics letters b,341(2),245-256. |
| MLA | ACCIARRI, M,et al."A measurement of tau-polarization at lep".Physics letters b 341.2(1994):245-256. |
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。