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Color octet scalar production at the CERN LHC

Gresham, Moira I. and Wise, Mark B. (2007) Color octet scalar production at the CERN LHC. Physical Review D, 76 (7). Art. No. 075003. ISSN 0556-2821. http://resolver.caltech.edu/CaltechAUTHORS:GREprd07

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Abstract

New physics at the weak scale that can couple to quarks typically gives rise to unacceptably large flavor changing neutral currents. An attractive way to avoid this problem is to impose the principle of minimal flavor violation. Recently it was noted that in minimal flavor violation only scalars with the same gauge quantum numbers as the standard model Higgs doublet or color octet scalars with the same weak quantum numbers as the Higgs doublet can couple to quarks. In this paper we compute the one-loop rate for production of a single color octet scalar through gluon fusion at the LHC, which can become greater than the tree level pair production rate for octet scalar masses around a TeV. We also calculate the precision electroweak constraint from Z-->[overline b]b; this constraint on color octet mass and Yukawa coupling affects the allowed range for single octet scalar production through gluon fusion.


Item Type:Article
Additional Information:©2007 The American Physical Society. (Received 19 June 2007; published 4 October 2007) This work was supported in part by DOE Grant No. DEFG03-92ER40701.
Subject Keywords:Non-standard-model Higgs bosons
Issue or Number:7
Record Number:CaltechAUTHORS:GREprd07
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:GREprd07
Alternative URL:http://dx.doi.org/10.1103/PhysRevD.76.075003
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8947
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:08 Oct 2007
Last Modified:08 Mar 2013 22:15

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