1202.1910 (H. Avakian et al.)

Probing Strangeness in Hard Processes    [PDF]

H. Avakian, M. Battaglieri, E. Cisbani, M. Contalbrigo, U. D'Alesio, R. De Leo, R. Devita, P. Di Nezza, D. Hasch, M. Mirazita, M. Osipenko, L. Pappalardo, P. Rossi

Since the discovery of strangeness almost five decades ago, interest in this
degree of freedom has grown up and now its investigation spans the scales from
quarks to nuclei. Measurements with identified strange hadrons can provide
important information on several hot topics in hadronic physics: the strange
distribution and fragmentation functions, the nucleon tomography and quark
orbital momentum, accessible through the study of the {\it generalized} parton
distribution and the {\it transverse momentum dependent} parton distribution
functions, the quark hadronization in the nuclear medium, the hadron
spectroscopy and the search for exotic mesons.
The CLAS12 large acceptance spectrometer in Hall B at the Jefferson
Laboratory upgraded with a RICH detector together with the 12 GeV CEBAF high
intensity, high polarized electron beam can open new possibilities to study
strangeness in hard processes allowing breakthroughs in all those areas.
This paper summarizes the physics case for a RICH detector for CLAS12. Many
topics have been intensively discussed at the International Workshop "Probing
Strangeness in Hard Processes" (PSHP2010) \cite{PSHP-workshop} held in
Frascati, Italy in October 2010. The authors of this papers like to thank all
speakers and participants of the workshop for their contribution and very
fruitful discussion.

View original: http://arxiv.org/abs/1202.1910