r. joosten, oct. 7, 2008 measurement of tmds in semi-inclusive dis in semi-inclusive dis rainer...
TRANSCRIPT
friburgo
Measurement of TMDs in Semi-Inclusive DIS
Rainer JoostenUniversity of BonnCharlottesville, VA, October 7, 2008
R. Joosten, Oct. 7, 2008R. Joosten, Oct. 7, 2008Content of the talkSIDIS Experiments with transversely polarised target HERMES and COMPASS
Transverse momentum in SIDIS
ResultsUnpolarized cross section (Cahn effect, Boer-Mulders)Sivers Distribution FunctionTransversity Distribution Function, Collins FunctionOther TMD Distribution Functions ConclusionsR. Joosten, Oct. 7, 20082Perspective of the talkI will focus on SIDIS reactions in one photon exchange
Kinematical Variable:
Q2 = -q2 @ 4 E E' sin2/2 resolution n = (El El') photon energy xBj = Q2/2Mn momentum of the struck quark
z = Eh/n exclusivity
(E,k)(E',k')g* q=(n,q )leptonnucleon