Search for charged Higgs bosons in e+e− collisions at centre-of-mass energies up to 202 GeV

A search for pair-produced charged Higgs bosons is performed with the L3 detector at LEP using data collected at centre-of- mass energies between 192 and 202 GeV, corresponding to an integrated luminosity of 233.2 pb−1. Decays into a charm and a strange quark or into a tau lepton and its neutrino ar...

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Bibliographic Details
Authors: Dova, María Teresa, L3 Collaboration
Format: article
Status:Published version
Publication Date:2000
Country:Argentina
Institution:Universidad Nacional de La Plata
Repository:SEDICI (UNLP)
Language:English
OAI Identifier:oai:sedici.unlp.edu.ar:10915/75724
Online Access:http://sedici.unlp.edu.ar/handle/10915/75724
Access Level:Open access
Keyword:Ciencias Exactas
Física
pair-produced
Higgs bosons
L3 detector at LEP
Description
Summary:A search for pair-produced charged Higgs bosons is performed with the L3 detector at LEP using data collected at centre-of- mass energies between 192 and 202 GeV, corresponding to an integrated luminosity of 233.2 pb−1. Decays into a charm and a strange quark or into a tau lepton and its neutrino are considered. The observed events are consistent with the expectations from Standard Model background processes. Including data taken at lower centre-of-mass energies, lower limits on the charged Higgs mass are derived at the 95% confidence level. They vary from 67.4 to 79.9 GeV as a function of the H± → τν branching ratio.