Eur. Phys. J. C (2012) 72: 2049
https://doi.org/10.1140/epjc/s10052-012-2049-3

Regular Article - Theoretical Physics

Strong, weak and flavor scalar triplets for the CDF Wjj anomaly

¹ Institut de Théorie des Phénomènes Physiques, EPFL, 1015, Lausanne, Switzerland
² Instituto de Física Teórica UAM/CSIC, Calle Nicolás Cabrera 13-15, 28049, Madrid, Spain

^* e-mail: riccardo.torre@cern.ch

Received: 4 April 2012
Revised: 28 May 2012
Published online: 26 June 2012

Abstract

A model describing the 4.1σ Wjj anomaly observed by the CDF experiment at the Tevatron collider is introduced. It features new scalar particles which are charged both under the SU(3) _C and the SU(2) _L gauge groups and which couple to pairs of quarks. We introduce several identical replicas of the scalar multiplets in order to leave an unbroken U(3) _Q ×U(3) _U ×U(3) _D flavor symmetry to satisfy the constraints coming from flavor physics. We discuss the LHC reach on the new scalar resonances both in the resonant production channel (with the Wjj final state) and in the QCD pair-production channel (with the 4j final state).