Search for Higgs bosons decaying to WW in e+e- collisions at LEP

被引：0

作者：

S. Schael

R. Barate

R. Brunelière

I. De Bonis

D. Decamp

C. Goy

S. Jézéquel

J.-P. Lees

F. Martin

E. Merle

M.-N. Minard

B. Pietrzyk

B. Trocmé

S. Bravo

M.P. Casado

M. Chmeissani

J.M. Crespo

E. Fernandez

M. Fernandez-Bosman

L. Garrido

M. Martinez

A. Pacheco

H. Ruiz

A. Colaleo

D. Creanza

N. De Filippis

M. De Palma

G. Iaselli

G. Maggi

M. Maggi

S. Nuzzo

A. Ranieri

G. Raso

F. Ruggieri

G. Selvaggi

L. Silvestris

P. Tempesta

A. Tricomi

G. Zito

X. Huang

J. Lin

Q. Ouyang

T. Wang

Y. Xie

R. Xu

S. Xue

J. Zhang

L. Zhang

W. Zhao

D. Abbaneo

机构：

[1] RWTH-Aachen,Physikalisches Institut

[2] IN2P3-CNRS,Laboratoire de Physique des Particules (LAPP)

[3] Universitat Autònoma de Barcelona,Institut de Física d’Altes Energies

[4] INFN Sezione di Bari,Dipartimento di Fisica

[5] Academia Sinica,Institute of High Energy Physics

[6] European Laboratory for Particle Physics (CERN),Laboratoire de Physique Corpusculaire

[7] Université Blaise Pascal,Laboratoire Leprince

[8] IN2P3-CNRS,Ringuet, Ecole Polytechnique

[9] Niels Bohr Institute,Dipartimento di Fisica

[10] Nuclear Research Center Demokritos (NRCD),Department of Physics and Astronomy

[11] IN2P3-CNRS,Kirchhoff

[12] Università di Firenze,Institut für Physik

[13] INFN Sezione di Firenze,Department of Physics

[14] Laboratori Nazionali dell’INFN (LNF-INFN),Institut für Experimentalphysik

[15] University of Glasgow,Department of Physics

[16] Utah Valley State College,Institut de Physique Nucléaire, Département de Physique

[17] Universität Heidelberg,Institut für Physik

[18] Imperial College,Centre de Physique des Particules de Marseille

[19] Universität Innsbruck,Dipartimento di Fisica

[20] University of Lancaster,Laboratoire de l’Accélérateur Linéaire

[21] Université Catholique de Louvain,Dipartimento di Fisica dell’Università

[22] Universität Mainz,Department of Physics, Royal Holloway & Bedford New College

[23] Univ Méditerranée,Particle Physics Department

[24] IN2P3-CNRS,Institute for Particle Physics

[25] Università di Milano e INFN Sezione di Milano,Department of Physics

[26] Max-Planck-Institut für Physik,Fachbereich Physik

[27] Werner-Heisenberg-Institut,Dipartimento di Fisica

[28] Université de Paris-Sud,Experimental Elementary Particle Physics

[29] IN2P3-CNRS,Department of Physics

[30] INFN Sezione di Pisa,Institute for Particle Physics

[31] e Scuola Normale Superiore,undefined

[32] University of London,undefined

[33] Rutherford Appleton Laboratory,undefined

[34] CEA,undefined

[35] DAPNIA/Service de Physique des Particules,undefined

[36] University of California at Santa Cruz,undefined

[37] University of Sheffield,undefined

[38] Universität Siegen,undefined

[39] Università di Trieste e INFN Sezione di Trieste,undefined

[40] University of Washington,undefined

[41] University of Wisconsin,undefined

[42] ETH Hönggerberg,undefined

来源：

The European Physical Journal C | 2007年 / 49卷

关键词：

Higgs Boson; Invariant Mass; Higgs Boson Mass; Time Projection Chamber; Inant Variable;

D O I：

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中图分类号：

学科分类号：

摘要：

A search for Higgs bosons produced in association with a fermion pair, and decaying to WW, is performed with the data collected by the ALEPH detector at centre-of-mass energies ranging from 191 to 209 GeV. The data correspond to an integrated luminosity of 453.2 pb-1. Thirteen exclusive selections are developed according to the different final state topologies. No statistically significant evidence for a Higgs boson decaying into a WW pair has been found. An upper limit is derived, as a function of the Higgs boson mass, on the product of the e+e-→Hff̄ cross section and the H→WW branching ratio. The data on the search for H→WW are combined with previously published ALEPH results on the search for H→γγ, to significantly extend the limits on the mass of a fermiophobic Higgs boson.

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