Leptonic Production of Baryon Resonances

In these lectures, the author focuses on the electromagnetic transition between non-strange baryon states. This sector received much attention in the early 1970's after the development of the first dynamical quark models. However, experimental progress was slow, partly because of the low rates associated with electromagnetic interactions, and partly because of the lack of guidance by theoretical models that went beyond the simplest quark models. It was also difficult for experiments to achieve the precision needed for a detailed analysis of the entire resonance region in terms of the fundamental photocoupling amplitudes over a large range in momentum transfer

Measurement of the lepton charge asymmetry in inclusive W production in pp collisions at s =\sqrt{s}\ = 7 TeV

This is the pre-print version of Published Article, which can be accessed from the link below - Copyright @ 2011 Springer VerlagA measurement of the lepton charge asymmetry in inclusive pp → WX production at Ös = 7 \textTeV s=7TeV is presented based on data recorded by the CMS detector at the LHC and corresponding to an integrated luminosity of 36 pb−1. This high precision measurement of the lepton charge asymmetry, performed in both the W → eν and W → μν channels, provides new insights into parton distribution functions