761 articles – 7589 references  [version française]
HAL: hal-00737518, version 1

Detailed view  Export this paper
Physical Review D 86 (2012) 114033
Accessing baryon to meson transition distribution amplitudes in meson production in association with a high invariant mass lepton pair at GSI-FAIR with PANDA
J. P. Lansberg1, B. Pire2, K. Semenov-Tian-Shansky3, L. Szymanowski4
(2012-12)

Nucleon antinucleon annihilation into a near backward (or forward) produced meson and a high invariant mass lepton pair admits a factorized description in terms of antinucleon (or nucleon) distribution amplitudes (DAs) and nucleon to meson (or antinucleon to meson) transition distribution amplitudes (TDAs). We estimate the cross section of backward (and forward) pion and eta meson production in association with a high invariant mass lepton pair for the kinematical conditions of GSI-FAIR. The cross sections are found to be large enough to be measured with the PANDA detector. Interesting phenomenological applications of the approach are thus expected.
1:  IPNO - Institut de Physique Nucléaire d'Orsay
2:  CPHT - Centre de Physique Théorique [Palaiseau]
3:  IFPA - Interactions Fondamentales en Physique et en Astrophysique
4:  NCBJ - National Center for Nuclear Research
Physics/High Energy Physics - Phenomenology
Fulltext link: 
http://fr.arXiv.org/abs/1210.0126