Chiral-odd fragmentation functions in single pion inclusive electroproduction

Leonard P. Gamberg; Dae Sung Hwang; Karo A. Oganessyan

doi:10.1016/j.physletb.2004.01.054

Chiral-odd fragmentation functions in single pion inclusive electroproduction

Leonard P. Gamberg
, Dae Sung Hwang
, Karo A. Oganessyan

Division of Science (Berks)

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

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 A_LU and the double spin asymmetry A_LT 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.

Original language	English (US)
Pages (from-to)	276-284
Number of pages	9
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	584
Issue number	3-4
DOIs	https://doi.org/10.1016/j.physletb.2004.01.054
State	Published - Apr 1 2004

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1016/j.physletb.2004.01.054

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abstract = "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.",

author = "Gamberg, \{Leonard P.\} and Hwang, \{Dae Sung\} and Oganessyan, \{Karo A.\}",

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doi = "10.1016/j.physletb.2004.01.054",

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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.

UR - https://www.scopus.com/pages/publications/1542316063

UR - https://www.scopus.com/pages/publications/1542316063#tab=citedBy

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 -

Chiral-odd fragmentation functions in single pion inclusive electroproduction

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