Measurement of Z0 → bb decay properties

L3 Collaboration; X. Leytens

doi:10.1016/0370-2693(90)91666-Y

Measurement of Z⁰ → bb decay properties

L3 Collaboration
, X. Leytens

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

We have measured the properties of Z⁰ → bb decays using a sample of 944 inclusive muon events, corresponding to 18 000 hadron events obtained with the L3 detector at LEP. We measured the partial decay width of the Z⁰ into bb, Γ_bb=353±48 MeV, and we determined the vector coupling of the Z⁰ to the b quark; g_rmv ²(b)=0.095±0.047. We measured the forward-backward charge asymmetry in e⁺e^- → bb events at √s≈M_v, and obtained A_bb=13.3±9.9%.

Original language	English
Pages (from-to)	416-424
Number of pages	9
Journal	Physics Letters B
Volume	241
Issue number	3
DOIs	https://doi.org/10.1016/0370-2693(90)91666-Y
Publication status	Published - 17 May 1990
Externally published	Yes

Funding

We wish to thank CERN for its hospitality and help. We want particularly to express our gratitude to the LEP division: it is their excellent achievements which made this experiment possible. We are grateful to T. Sj6strand, P. Nason, M. Herreiro, H. Steger, and J. Donoghue for useful discussions on heavy quark production and fragmentation. We acknowledge the support of all the funding agencies which contributed to this experiment.

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@article{b5841c0f3db9481382968d2b2118da24,

title = "Measurement of Z0 → bb decay properties",

abstract = "We have measured the properties of Z0 → bb decays using a sample of 944 inclusive muon events, corresponding to 18 000 hadron events obtained with the L3 detector at LEP. We measured the partial decay width of the Z0 into bb, Γbb=353±48 MeV, and we determined the vector coupling of the Z0 to the b quark; grmv 2(b)=0.095±0.047. We measured the forward-backward charge asymmetry in e+e- → bb events at √s≈Mv, and obtained Abb=13.3±9.9\%.",

author = "\{L3 Collaboration\} and B. Adeva and O. Adriani and M. Aguilar-Benitez and H. Akbari and J. Alcaraz and A. Aloisio and G. Alverson and Alviggi, \{M. G.\} and Q. An and H. Anderhub and Anderson, \{A. L.\} and Andreev, \{V. P.\} and T. Angelov and L. Antonov and D. Antreasyan and A. Arefiev and T. Azemoon and T. Aziz and Baba, \{P. V.K.S.\} and P. Bagnaia and Bakken, \{J. A.\} and L. Baksay and Ball, \{R. C.\} and S. Banerjee and J. Bao and L. Barone and A. Bay and U. Becker and S. Beingessner and Bencze, \{Gy L.\} and J. Berdugo and P. Berges and B. Bertucci and Betev, \{B. L.\} and A. Biland and R. Bizzarri and Blaising, \{J. J.\} and P. Bl{\"o}meke and B. Blumenfeld and Bobbink, \{G. J.\} and M. Bocciolini and W. B{\"o}hlen and A. B{\"o}hm and T. B{\"o}hringer and B. Borgia and D. Bourilkov and M. Bourquin and D. Boutigny and Branson, \{J. G.\} and X. Leytens",

year = "1990",

month = may,

day = "17",

doi = "10.1016/0370-2693(90)91666-Y",

language = "English",

volume = "241",

pages = "416--424",

journal = "Physics Letters B",

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T1 - Measurement of Z0 → bb decay properties

AU - L3 Collaboration

AU - Adeva, B.

AU - Adriani, O.

AU - Aguilar-Benitez, M.

AU - Akbari, H.

AU - Alcaraz, J.

AU - Aloisio, A.

AU - Alverson, G.

AU - Alviggi, M. G.

AU - An, Q.

AU - Anderhub, H.

AU - Anderson, A. L.

AU - Andreev, V. P.

AU - Angelov, T.

AU - Antonov, L.

AU - Antreasyan, D.

AU - Arefiev, A.

AU - Azemoon, T.

AU - Aziz, T.

AU - Baba, P. V.K.S.

AU - Bagnaia, P.

AU - Bakken, J. A.

AU - Baksay, L.

AU - Ball, R. C.

AU - Banerjee, S.

AU - Bao, J.

AU - Barone, L.

AU - Bay, A.

AU - Becker, U.

AU - Beingessner, S.

AU - Bencze, Gy L.

AU - Berdugo, J.

AU - Berges, P.

AU - Bertucci, B.

AU - Betev, B. L.

AU - Biland, A.

AU - Bizzarri, R.

AU - Blaising, J. J.

AU - Blömeke, P.

AU - Blumenfeld, B.

AU - Bobbink, G. J.

AU - Bocciolini, M.

AU - Böhlen, W.

AU - Böhm, A.

AU - Böhringer, T.

AU - Borgia, B.

AU - Bourilkov, D.

AU - Bourquin, M.

AU - Boutigny, D.

AU - Branson, J. G.

AU - Leytens, X.

PY - 1990/5/17

Y1 - 1990/5/17

N2 - We have measured the properties of Z0 → bb decays using a sample of 944 inclusive muon events, corresponding to 18 000 hadron events obtained with the L3 detector at LEP. We measured the partial decay width of the Z0 into bb, Γbb=353±48 MeV, and we determined the vector coupling of the Z0 to the b quark; grmv 2(b)=0.095±0.047. We measured the forward-backward charge asymmetry in e+e- → bb events at √s≈Mv, and obtained Abb=13.3±9.9%.

AB - We have measured the properties of Z0 → bb decays using a sample of 944 inclusive muon events, corresponding to 18 000 hadron events obtained with the L3 detector at LEP. We measured the partial decay width of the Z0 into bb, Γbb=353±48 MeV, and we determined the vector coupling of the Z0 to the b quark; grmv 2(b)=0.095±0.047. We measured the forward-backward charge asymmetry in e+e- → bb events at √s≈Mv, and obtained Abb=13.3±9.9%.

UR - https://www.scopus.com/pages/publications/0042086152

U2 - 10.1016/0370-2693(90)91666-Y

DO - 10.1016/0370-2693(90)91666-Y

M3 - Article

AN - SCOPUS:0042086152

SN - 0370-2693

VL - 241

SP - 416

EP - 424

JO - Physics Letters B

JF - Physics Letters B

IS - 3

ER -

Measurement of Z⁰ → bb decay properties

Abstract

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