TY - JOUR
T1 - Nucleon tensor charge from Collins azimuthal asymmetry measurements
AU - Kang, Zhong Bo
AU - Prokudin, Alexei
AU - Sun, Peng
AU - Yuan, Feng
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/4/6
Y1 - 2015/4/6
N2 - We investigate the nucleon tensor charge from current experiments by a combined analysis of the Collins asymmetries in two hadron production in e+e-annihilations and semi-inclusive hadron production in deep inelastic scattering processes. The transverse momentum dependent evolution is taken into account, for the first time, in the global fit of the Collins fragmentation functions and the quark transversity distributions at the approximate next-to-leading logarithmic order. We obtain the nucleon tensor charge contribution from up and down quarks as δu=+0.30-0.08+0.12 and δd=-0.20-0.11+0.28 at 90% confidence level for momentum fraction 0.0065≤xB≤0.35 and Q2=10GeV2.
AB - We investigate the nucleon tensor charge from current experiments by a combined analysis of the Collins asymmetries in two hadron production in e+e-annihilations and semi-inclusive hadron production in deep inelastic scattering processes. The transverse momentum dependent evolution is taken into account, for the first time, in the global fit of the Collins fragmentation functions and the quark transversity distributions at the approximate next-to-leading logarithmic order. We obtain the nucleon tensor charge contribution from up and down quarks as δu=+0.30-0.08+0.12 and δd=-0.20-0.11+0.28 at 90% confidence level for momentum fraction 0.0065≤xB≤0.35 and Q2=10GeV2.
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U2 - 10.1103/PhysRevD.91.071501
DO - 10.1103/PhysRevD.91.071501
M3 - Article
AN - SCOPUS:84929208021
SN - 1550-7998
VL - 91
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 7
M1 - 071501
ER -