Accessing baryon to meson transition distribution amplitudes in meson production in association with a high invariant mass lepton pair at GSI-FAIR with P̅ ANDA
[en] 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.
Disciplines :
Physics
Author, co-author :
Lansberg, Jean-Philippe ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Physique des astroparticules
Pire, Bernard
Semenov-Tyan-Shanskiy, Kirill ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Physique des astroparticules
Szymanowski, Lech
Language :
English
Title :
Accessing baryon to meson transition distribution amplitudes in meson production in association with a high invariant mass lepton pair at GSI-FAIR with P̅ ANDA
Publication date :
December 2012
Journal title :
Physical Review. D, Particles and Fields
ISSN :
0556-2821
eISSN :
1089-4918
Publisher :
American Physical Society, College Park, United States - Maryland
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