Rates for rapidity gap Higgs production

Abstract

We present model-independent estimates of the signal-to-background ratio for Higgs → bb detection in double-diffractive events at the Tevatron and the LHC. For the missingmass approach to be able to identify the Higgs boson, it will be necessary to tag the b quark jets in the central region. The signal is predicted to be very small at the Tevatron, but observable at the LHC. We note that the double-diffractive dijet production, may serve as a unique gluon factory. This process can be used also as a Pomeron-Pomeron luminosity monitor. † Based on a talk by V

Prospects for new physics observations in diffractive processes at the LHC and Tevatron

“…The cross sections (47) of the present, more detailed, calculation are lower than previous results which were derived in the leading log approximation withŜ 2 = 1 [25,5,26].…”

“…To estimateσ we assume gluon dominance and that zg IP (z) ≃ 0.7 for our kinematic domain, which is consistent with the distribution obtained by the H1 collaboration from the analysis of their diffractive data [18]. Then (26) giveŝ…”

“…The allowed mass window is claimed to be [25][26][27][28][29][30][31][32][33][34][35] GeV. Within such a scenario there should exist a spectrum ofgg bound states (gluinoballs or gluinonia), which may reveal themselves in gluon-gluon collisions.…”

Production of magnetic monopoles and monopolium in peripheral collisions

“…The process of central production of particles [33,34] has attracted much attention in the recent years, specially with the start of the LHC operation and besides the dedicated experiments to his observation [35]. Beyond the Higgs boson, several other particles can be produced, some in a expressive ratio, inside this mechanism.…”

“…The process can be described [33,34,36] as the collision of two hadrons (or leptons) which interact themselves by the gauge boson exchange (see Fig. 1).…”