Sivers effect at Hermes, Compass and Clas12

Physics – High Energy Physics – High Energy Physics - Phenomenology

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

20 pages, 8 figures. Prepared for the CLAS 12 RICH Detector Workshop, January 28-29, 2008, Jefferson Lab, Newport News, VA, US

Scientific paper

Single spin asymmetries in semi-inclusive deep-inelastic scattering off transversely polarized targets give information on, among other fascinating effects, a pseudo time-reversal odd parton distribution function, the 'Sivers function'. In this proceeding we review the extractions of this function from HERMES and COMPASS data. In particular, the HERMES pion and kaon data suggest significant sea-quarks contributions at $x \simeq 0.15$ to the Sivers effect. We present a new fit that includes all relevant sea quark distributions and gives a statistically satisfactory overall description of the data, but does not describe ideally the $K^+$ data from HERMES. We argue that measurements of the pion- and kaon Sivers effect at CLAS12, and COMPASS, will clarify the situation.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Sivers effect at Hermes, Compass and Clas12 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Sivers effect at Hermes, Compass and Clas12, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sivers effect at Hermes, Compass and Clas12 will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-56306

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.