HOW MUCH CAN BE LEARNT ABOUT PION WAVE FUNCTION FROM THE DRELL–YAN PROCESS?
1993 ◽
Vol 08
(15)
◽
pp. 2605-2621
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Keyword(s):
Contribution of the high twist Feynman diagrams to the dilepton production cross section in pion–hadron collisions is investigated. In calculations the asymptotic, Chernyak–Zhitnitsky and two other pion model wave functions P2, P3 are used. It is shown that this contribution depends on the choice of wave functions and for large dilepton transverse momentum pT and invariant mass Q in the limit [Formula: see text] exceeds the leading one by an order of magnitude. Perspectives of the Drell–Yan process in the context of the pion wave function investigation are discussed.
2008 ◽
Vol 17
(06)
◽
pp. 1041-1059
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Keyword(s):
2006 ◽
Vol 15
(06)
◽
pp. 1209-1231
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Keyword(s):
2019 ◽
Vol 34
(19)
◽
pp. 1950150
◽
2013 ◽
Vol 423-426
◽
pp. 1640-1643
2015 ◽
Vol 30
(36)
◽
pp. 1550217
2000 ◽
Vol 84
(13)
◽
pp. 2792-2797
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Keyword(s):