Search for single b*-quark production with the ATLAS detector at sqrt(s) = 7 TeV

Abstract

The results of a search for an excited bottom-quark b⁎ in pp collisions at View the MathML source, using 4.7 fb−1 of data collected by the ATLAS detector at the LHC are presented. In the model studied, a single b⁎-quark is produced through a chromomagnetic interaction and subsequently decays to a W boson and a top quark. The search is performed in the dilepton and lepton + jets final states, which are combined to set limits on b⁎-quark couplings for a range of b⁎-quark masses. For a benchmark with unit size chromomagnetic and Standard Model-like electroweak b⁎ couplings, b⁎ quarks with masses less than 870 GeV are excluded at the 95% credibility level.


Tutti gli autori

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

Titolo volume/Rivista

PHYSICS LETTERS. SECTION B


Anno di pubblicazione

2013

ISSN

0370-2693

ISBN

Non Disponibile


Numero di citazioni Wos

12

Ultimo Aggiornamento Citazioni

22/04/2018


Numero di citazioni Scopus

12

Ultimo Aggiornamento Citazioni

22/04/2018


Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile