Measurement of the weak charged current structure in semileptonic b-hadron decays at the z-peak
文献类型：期刊论文
| 作者 | ACCIARRI, M; ADAM, 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 | 1995-05-25 |
| 卷号 | 351期号:1-3页码:375-386 |
| ISSN号 | 0370-2693 |
| 通讯作者 | Acciarri, m() |
| 英文摘要 | The neutrino energy spectrum in semileptonic b-hadron decays with identified energetic electrons and muons has been measured. the observed relative energy sharing between the neutrino and the charged lepton is found to be well described with a w-+/- polarization obtained from a free b-quark decay model with a (v-a)x(v-a) decay structure. the alternative of a (v+a) x(v-a) decay structure is excluded with a significance of more than 6 standard deviations. the possibility that hadronic corrections to the b-hadron decay destroy any w-+/- polarization is disfavored by more than 3 standard deviations. |
| WOS关键词 | L3 EXPERIMENT ; MESONS ; MODEL |
| 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:A1995RC32000057 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2175912 |
| 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.NIKHEF, NATL INST HIGH ENERGY PHYS, 1009 DB AMSTERDAM, NETHERLANDS 4.UNIV MICHIGAN, ANN ARBOR, MI 48109 USA 5.CNRS, IN2P3, LAB ANNECY LE VIEUX PHYS PARTICULES, 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,ADAM, A,ADRIANI, O,et al. Measurement of the weak charged current structure in semileptonic b-hadron decays at the z-peak[J]. Physics letters b,1995,351(1-3):375-386. |
| APA | ACCIARRI, M.,ADAM, A.,ADRIANI, O.,AGUILARBENITEZ, M.,AHLEN, S.,...&VANDERZWAAN, BCC.(1995).Measurement of the weak charged current structure in semileptonic b-hadron decays at the z-peak.Physics letters b,351(1-3),375-386. |
| MLA | ACCIARRI, M,et al."Measurement of the weak charged current structure in semileptonic b-hadron decays at the z-peak".Physics letters b 351.1-3(1995):375-386. |
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