20-27 July 2011
Alpes Congrès - Alpexpo
Europe/Paris timezone

Exclusive dimuon measurements with LHCb

Not scheduled
Dauphine (Alpes Congrès - Alpexpo)

Dauphine

Alpes Congrès - Alpexpo

Poster QCD

Speaker

Tara Shears

Description

We report on studies of exclusive dimuon production using LHCb experimental data. Exclusively produced muon pairs can be produced by two photon fusion (a QED process ideally suited to obtaining a precise integrated luminosity measure), or through resonances produced by pomeron-photon fusion or double pomeron exchange.We present cross-section measurements for exclusive dimuon production, and the first observations at a proton-proton collider of exclusive J/psi, psi’ and chi_c states, obtained with 37 pb-1 of data at centre of mass energy of 7 TeV. The resolution of the LHCb detectors allow the chic0, chic1 and chic2 states to be separated. We compare our results to theoretical predictions.

Primary author

Dr Gaia Lanfranchi (Laboratori Nazionali di Frascati - INFN)

Presentation Materials