Single-spin asymmetries in the leptoproduction of transversely polarized Λ hyperons
Abstract
We analyze single-spin asymmetries (SSAs) in the leptoproduction of transversely polarized Λ hyperons within the collinear twist-3 formalism. We calculate both the distribution and fragmentation terms in two different gauges (lightcone and Feynman) and show that the results are identical. This is the first time that the fragmentation piece has been analyzed for transversely polarized hadron production within the collinear twist-3 framework. In lightcone gauge we use the same techniques that were employed in computing the analogous piece in p↑ p → π X, which has become an important part to that reaction. With this in mind, we also verify the gauge invariance of the formulas for the transverse SSA in the leptoproduction of pions. (author)
- Authors:
-
- Temple Univ., Philadelphia, PA (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Tubingen Univ., Tubingen (Germany)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1184841
- Grant/Contract Number:
- AC02-98CH10886; PHY-1205942
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics Letters. B
- Additional Journal Information:
- Journal Volume: 744; Journal Issue: C; Journal ID: ISSN 0370-2693
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Kanazawa, K., Metz, A., Pitonyak, D., and Schlegel, M. Single-spin asymmetries in the leptoproduction of transversely polarized Λ hyperons. United States: N. p., 2015.
Web. doi:10.1016/j.physletb.2015.04.011.
Kanazawa, K., Metz, A., Pitonyak, D., & Schlegel, M. Single-spin asymmetries in the leptoproduction of transversely polarized Λ hyperons. United States. https://doi.org/10.1016/j.physletb.2015.04.011
Kanazawa, K., Metz, A., Pitonyak, D., and Schlegel, M. Mon .
"Single-spin asymmetries in the leptoproduction of transversely polarized Λ hyperons". United States. https://doi.org/10.1016/j.physletb.2015.04.011. https://www.osti.gov/servlets/purl/1184841.
@article{osti_1184841,
title = {Single-spin asymmetries in the leptoproduction of transversely polarized Λ hyperons},
author = {Kanazawa, K. and Metz, A. and Pitonyak, D. and Schlegel, M.},
abstractNote = {We analyze single-spin asymmetries (SSAs) in the leptoproduction of transversely polarized Λ hyperons within the collinear twist-3 formalism. We calculate both the distribution and fragmentation terms in two different gauges (lightcone and Feynman) and show that the results are identical. This is the first time that the fragmentation piece has been analyzed for transversely polarized hadron production within the collinear twist-3 framework. In lightcone gauge we use the same techniques that were employed in computing the analogous piece in p↑ p → π X, which has become an important part to that reaction. With this in mind, we also verify the gauge invariance of the formulas for the transverse SSA in the leptoproduction of pions. (author)},
doi = {10.1016/j.physletb.2015.04.011},
journal = {Physics Letters. B},
number = C,
volume = 744,
place = {United States},
year = {Mon Apr 13 00:00:00 EDT 2015},
month = {Mon Apr 13 00:00:00 EDT 2015}
}
Web of Science
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