TY - JOUR
T1 - Role of Collins effect in the single spin asymmetry A N in p↑p→h X processes
AU - Anselmino, M.
AU - Boglione, M.
AU - D'Alesio, U.
AU - Leader, E.
AU - Melis, S.
AU - Murgia, F.
AU - Prokudin, A.
PY - 2012/10/31
Y1 - 2012/10/31
N2 - The much debated issue of the transverse single spin asymmetry A N observed in the inclusive large P T production of a single hadron in pp interactions, p↑p→X, is considered in a transverse momentum dependent factorization scheme. A previous result stating that the maximum contribution of the Collins effect is strongly suppressed, is revisited, correcting a numerical error. New estimates are given, adopting the Collins functions recently extracted from semi-inclusive deep inelastic scattering and e +e - data, and phenomenological consequences are discussed.
AB - The much debated issue of the transverse single spin asymmetry A N observed in the inclusive large P T production of a single hadron in pp interactions, p↑p→X, is considered in a transverse momentum dependent factorization scheme. A previous result stating that the maximum contribution of the Collins effect is strongly suppressed, is revisited, correcting a numerical error. New estimates are given, adopting the Collins functions recently extracted from semi-inclusive deep inelastic scattering and e +e - data, and phenomenological consequences are discussed.
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U2 - 10.1103/PhysRevD.86.074032
DO - 10.1103/PhysRevD.86.074032
M3 - Article
AN - SCOPUS:84868517222
SN - 1550-7998
VL - 86
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 7
M1 - 074032
ER -