TY - JOUR
T1 - Chiral-odd fragmentation functions in single pion inclusive electroproduction
AU - Gamberg, Leonard P.
AU - Hwang, Dae Sung
AU - Oganessyan, Karo A.
PY - 2004/4/1
Y1 - 2004/4/1
N2 - We consider a sub-leading twist chiral-odd pion fragmentation function and explore its contribution in single pion semi-inclusive electroproduction. We evaluate the single beam-spin azimuthal asymmetry ALU and the double spin asymmetry ALT in polarized electroproduction of pions from an unpolarized and transversely polarized nucleon, respectively. The beam asymmetry is expressed as the product of chiral-odd, and T-odd and even distribution and fragmentation functions. The double spin asymmetry contains information on the quark's transversity distribution. In a quark-diquark- spectator framework we estimate these asymmetries at 6 GeV, 12 GeV, and 27.5 GeV energies.
AB - We consider a sub-leading twist chiral-odd pion fragmentation function and explore its contribution in single pion semi-inclusive electroproduction. We evaluate the single beam-spin azimuthal asymmetry ALU and the double spin asymmetry ALT in polarized electroproduction of pions from an unpolarized and transversely polarized nucleon, respectively. The beam asymmetry is expressed as the product of chiral-odd, and T-odd and even distribution and fragmentation functions. The double spin asymmetry contains information on the quark's transversity distribution. In a quark-diquark- spectator framework we estimate these asymmetries at 6 GeV, 12 GeV, and 27.5 GeV energies.
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U2 - 10.1016/j.physletb.2004.01.054
DO - 10.1016/j.physletb.2004.01.054
M3 - Article
AN - SCOPUS:1542316063
SN - 0370-2693
VL - 584
SP - 276
EP - 284
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 - 3-4
ER -