https://doi.org/10.1140/epjc/s10052-009-0961-y
Regular Article - Theoretical Physics
Two Parton Shower Background for Associate W Higgs Production
Department of Particle Physics, School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Science, Tel Aviv University, Tel Aviv, 69978, Israel
* e-mail: leving@post.tau.ac.il
** e-mail: levin@mail.desy.de
Received:
25
March
2008
Revised:
21
November
2008
Published online:
26
March
2009
The estimates of the background for the associate W Higgs production, which stems from the two parton shower production, leads to a background which is of the order of the signal for the non-perturbative contribution. In the perturbative approach the background turns out to be small. This background does not depend on the rapidity difference between the W and the
pair, while the signal peaks when the rapidity difference is zero. Detailed calculations for the enhanced diagrams’ contribution to this process are presented, and it is shown that the overlapping singularities, being important theoretically, lead to a small contribution for the LHC range of energies.
© Springer-Verlag , 2009
