TY - JOUR
T1 - Contributions from higher twist effects to the quark fragmentation functions in neutrino data
AU - Haguenauer, M.
AU - Lundborg, P.
AU - Matteuzzi, C.
AU - Poulard, G.
AU - Ramello, L.
AU - Bonetti, S.
AU - Cavalli, D.
AU - Pedrini, D.
AU - Pullia, A.
AU - Heusse, Ph
PY - 1981/3/26
Y1 - 1981/3/26
N2 - Quark fragmentation functions are studied with ≈3500 charged current events induced in the bubble chamber Gargamelle by neutrinos of the SPS wide band beam, with 〈Eν〉 ≈ 25 GeV. The Q2 and W2 regions covered by this experiment are Q2 ≈ 0-40 GeV2 and W2 ≈ 1-100 GeV2, the mean values being 〈Q2〉 = 6.5 GeV2, 〈W2〉 = 22GeV2. A correlation between the variables z = Eπ EH and y = EH Ev is found in the data in the region Q2 = 1-10 GeV2, which can be explained in terms of higher twist effects. These effects reproduce the Q2 evolution of the non-singlet moments of the fragmentation function without any need for logarithmic terms.
AB - Quark fragmentation functions are studied with ≈3500 charged current events induced in the bubble chamber Gargamelle by neutrinos of the SPS wide band beam, with 〈Eν〉 ≈ 25 GeV. The Q2 and W2 regions covered by this experiment are Q2 ≈ 0-40 GeV2 and W2 ≈ 1-100 GeV2, the mean values being 〈Q2〉 = 6.5 GeV2, 〈W2〉 = 22GeV2. A correlation between the variables z = Eπ EH and y = EH Ev is found in the data in the region Q2 = 1-10 GeV2, which can be explained in terms of higher twist effects. These effects reproduce the Q2 evolution of the non-singlet moments of the fragmentation function without any need for logarithmic terms.
UR - https://www.scopus.com/pages/publications/49149134143
U2 - 10.1016/0370-2693(81)90771-1
DO - 10.1016/0370-2693(81)90771-1
M3 - Article
SN - 0370-2693
VL - 100
SP - 185
EP - 190
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 2
ER -