scholarly journals Low-mass lepton pair production at large transverse momentum

2009 ◽  
Vol 79 (5) ◽  
Author(s):  
Zhong-Bo Kang ◽  
Jian-Wei Qiu ◽  
Werner Vogelsang
Keyword(s):  
Transverse Momentum ◽  
Pair Production ◽  
Lepton Pair ◽  
Large Transverse Momentum ◽  
Lepton Pair Production ◽  
Low Mass

scholarly journals Low-mass lepton-pair production in p-Be collisions at 450 GeV/c

1995 ◽  
Vol 68 (1) ◽  
pp. 47-64 ◽  
Author(s):  
T. Åkesson ◽  
S. Almehed ◽  
A. L. S. Angelis ◽  
J. Antos ◽  
H. Atherton ◽  
...  
Keyword(s):  
Pair Production ◽  
Lepton Pair ◽  
Lepton Pair Production ◽  
Low Mass

VECTOR MESON-HADRON COLLISIONS: LARGE INVARIANT MASS AND TRANSVERSE MOMENTUM LEPTON PAIR PRODUCTION

1994 ◽  
Vol 09 (29) ◽  
pp. 5077-5095 ◽  
Author(s):  
SHAHIN S. AGAEV
Keyword(s):  
Transverse Momentum ◽  
Vector Meson ◽  
Pair Production ◽  
Invariant Mass ◽  
Perturbative Qcd ◽  
General Expression ◽  
Lepton Pair ◽  
Proton Collision ◽  
Lepton Pair Production

In the framework of factorized perturbative QCD, higher twist mesonic binding effects in lepton pair production in vector meson-hadron collisions are investigated. A general expression for the higher twist contributions is derived. As an example, these contributions are calculated in the case of the ρ meson-proton collision and comparisons are made to leading twist ones. It is shown that the higher twist contributions induced by a transversely polarized ρT meson are large for all values of the dilepton transverse momentum pT (2 GeV≤pT≤6 GeV). In the kinematic regimes τ=Q2/S→1 or xF→1, the higher twist corrections induced by both ρT and ρL exceed considerably the leading ones. The Drell-Yan processes with dilepton rapidity y>0 are especially preferable for the observation of these effects.

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