New collinear twist-3 analysis of transverse SSA: Toward a resolution for the sign-mismatch problem
Abstract
We present a new collinear twist-3 analysis of the transverse SSA AN at RHIC. We use the TMD Sivers/Collins function to fix some of the relevant collinear twist-3 functions and perform a fit of the RHIC data with other parameterized twist-3 functions. This allows us to keep the consistency among descriptions in pp collision, SIDIS, and e+e– annihilation and thus could provide a unified description of the spin asymmetries in the low- and high-PT processes. In conclusion, by taking into account the twist-3 fragmentation contribution, we show for the first time this contribution could be the main source of AN in pp↑ → hX and its inclusion could provide a solution for the sign-mismatch problem.
- Authors:
-
- Temple Univ., Philadelphia, PA (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Niigata Univ., Niigata (Japan)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- RIKEN
- OSTI Identifier:
- 1228859
- Report Number(s):
- BNL-108591-2015-JA
Journal ID: ISSN 0177-7963; R&D Project: PO-3
- Grant/Contract Number:
- SC00112704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Few-Body Systems
- Additional Journal Information:
- Journal Volume: 56; Journal Issue: 6-9; Journal ID: ISSN 0177-7963
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; single-spin asymmetries; collinear factorization; twist-3 fragmentation
Citation Formats
Kanazawa, Koichi, Pitonyak, Daniel, Koike, Yuji, and Metz, Andreas. New collinear twist-3 analysis of transverse SSA: Toward a resolution for the sign-mismatch problem. United States: N. p., 2014.
Web. doi:10.1007/s00601-014-0913-4.
Kanazawa, Koichi, Pitonyak, Daniel, Koike, Yuji, & Metz, Andreas. New collinear twist-3 analysis of transverse SSA: Toward a resolution for the sign-mismatch problem. United States. https://doi.org/10.1007/s00601-014-0913-4
Kanazawa, Koichi, Pitonyak, Daniel, Koike, Yuji, and Metz, Andreas. Sun .
"New collinear twist-3 analysis of transverse SSA: Toward a resolution for the sign-mismatch problem". United States. https://doi.org/10.1007/s00601-014-0913-4. https://www.osti.gov/servlets/purl/1228859.
@article{osti_1228859,
title = {New collinear twist-3 analysis of transverse SSA: Toward a resolution for the sign-mismatch problem},
author = {Kanazawa, Koichi and Pitonyak, Daniel and Koike, Yuji and Metz, Andreas},
abstractNote = {We present a new collinear twist-3 analysis of the transverse SSA AN at RHIC. We use the TMD Sivers/Collins function to fix some of the relevant collinear twist-3 functions and perform a fit of the RHIC data with other parameterized twist-3 functions. This allows us to keep the consistency among descriptions in pp collision, SIDIS, and e+e– annihilation and thus could provide a unified description of the spin asymmetries in the low- and high-PT processes. In conclusion, by taking into account the twist-3 fragmentation contribution, we show for the first time this contribution could be the main source of AN in pp↑ → hX and its inclusion could provide a solution for the sign-mismatch problem.},
doi = {10.1007/s00601-014-0913-4},
journal = {Few-Body Systems},
number = 6-9,
volume = 56,
place = {United States},
year = {Sun Oct 19 00:00:00 EDT 2014},
month = {Sun Oct 19 00:00:00 EDT 2014}
}
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