Study of the pion distribution amplitude in polarized muon pair production

Journal Article · Sat Jun 01 00:00:00 EDT 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.53.6180· OSTI ID:284568

Brandenburg, A ^[1]; Mueller, D ^[2]; Teryaev, O V ^[3]

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1. Institut fuer Theoretische Physik, Physikzentrum, RWTH, 52056 Aachen (Germany)
2. Institut fuer Theoretische Physik, Universitaet Leipzig, 04109 Leipzig (Germany)
3. Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, 141980 Dubna (Russia)

We consider the production of muon pairs from the scattering of pions on longitudinally polarized protons. We calculate the cross section and the single spin asymmetry for this process, taking into account pion bound state effects. We work in the kinematic region where the photon has a large longitudinal momentum fraction, which allows us to treat the bound state problem perturbatively. Our predictions are directly proportional to the pion distribution amplitude. A measurement of the polarized Drell-Yan cross section, thus, allows the determination of the shape of the pion distribution amplitude. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 284568
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 11 Vol. 53; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
AMPLITUDES
ASYMMETRY
BOUND STATE
CROSS SECTIONS
DISTRIBUTION
MUONS
PAIR PRODUCTION
PERTURBATION THEORY
PION-PROTON INTERACTIONS
PIONS
POLARIZED TARGETS
SPIN