Measurement of the cross section for open b-quark production in two-photon interactions at LEP

被引：4
|
作者：
Schael, S. [1 ]
Barate, R.
Bruneliere, R.
De Bonis, I.
Decamp, D.
Goy, C.
Jezequel, S.
Lees, J. -P.
Martin, F.
Merele, E.
Minard, M. -N.
Pietrzyk, B.
Trocme, B.
Bravo, S.
Casado, M. P.
Chmeissani, M.
Crespo, J. M.
Fernandez, E.
Fernandez-Bosman, M.
Garrido, Ll.
Martinez, M.
Pacheco, A.
Ruiz, H.
Colaleo, A.
Creanza, D.
De Filippis, N.
de Palma, M.
Iaselli, G.
Maggi, G.
Maggi, M.
Nuzzo, S.
Ranieri, A.
Raso, G.
Ruggieri, F.
Selvaggi, G.
Silvestris, L.
Tempesta, P.
Tricomi, A.
Zito, G.
Huang, X.
Lin, J.
Ouyang, Q.
Wang, T.
Xie, Y.
Xu, R.
Xue, S.
Zhang, J.
Zhang, L.
Zhao, W.
Abbaneo, D.
机构：
[1] Univ Barcelona, E-08208 Barcelona, Spain
[2] Univ Montpellier 2, Grp Astroparticules Montpellier, F-34095 Montpellier, France
[3] BNP Paribas, D-60325 Frankfurt, Germany
[4] Univ Libre Bruxelles, Inst Inter Univ Hautes Energies, B-1050 Brussels, Belgium
[5] Univ Palermo, Dipartimento Fis Tecnol Relative, Palermo, Italy
[6] SLAC, Stanford, CA 94309 USA
[7] CERN, CH-1211 Geneva 23, Switzerland
[8] Univ Liverpool, Liverpool L697ZE, Merseyside, England
[9] Polish Acad Sci, Henryk Niewodnicznski Inst Nucl Phys, Krakow, Poland
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2007年 / 09期
关键词：
e plus -e- experiments; CARLO EVENT GENERATOR; MONTE-CARLO;
D O I：
10.1088/1126-6708/2007/09/102
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
Inclusive b-quark production in two-photon collisions has been measured at LEP using an integrated luminosity of 698 pb(-1) collected by the ALEPH detector with root s between 130 and 209 GeV. The b quarks were identified using lifetime information. The cross section is found to be sigma(e(+)e -> e(+)e(-) bb(-)X) = (5.4 +/- 0.8(stat) +/- 0.8(syst)) pb, which is consistent with Next-to-Leading Order QCD.
引用
收藏
页数：20
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