Search for a CP-odd Higgs boson decaying to Zh in pp collisions at sqrt(s) = 8 TeV with the ATLAS detector

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Abstract

A search for a heavy, CP-odd Higgs boson, A, decaying into a Z boson and a 125 GeV Higgs boson, h, with the ATLAS detector at the LHC is presented. The search uses proton--proton collision data at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 20.3 fb-1. Decays of CP-even h bosons to tt or bb pairs with the Z boson decaying to electron or muon pairs are considered, as well as h?bb decays with the Z boson decaying to neutrinos. No evidence for the production of an A boson in these channels is found and the 95% confidence level upper limits derived for s(gg?A)×BR(A?Zh)×BR(h?ff¯) are 0.098--0.013 pb for f=t and 0.57--0.014 pb for f=b in a range of mA= 220--1000 GeV. The results are combined and interpreted in the context of two-Higgs doublet models.

Autore Pugliese

Tutti gli autori

  • G. AAD , G. CHIODINI , E. GORINI , M. PRIMAVERA , S. SPAGNOLO , A. VENTURA , ET AL.

Titolo volume/Rivista

PHYSICS LETTERS. SECTION B

Anno di pubblicazione

2015

ISSN

0370-2693

ISBN

Non Disponibile

Numero di citazioni Wos

63

Ultimo Aggiornamento Citazioni

28/04/2018

Numero di citazioni Scopus

Non Disponibile

Ultimo Aggiornamento Citazioni

Non Disponibile

Settori ERC

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Codici ASJC

Non Disponibile