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Kinematic enhancement of non-perturbative corrections to quarkonium production

Beneke, M. and Rothstein, I. Z. and Wise, Mark B. (1997) Kinematic enhancement of non-perturbative corrections to quarkonium production. Physics Letters B, 408 (1-4). pp. 373-380. ISSN 0370-2693. https://resolver.caltech.edu/CaltechAUTHORS:20170408-143640730

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Abstract

In this letter we address issues involved in quarkonium production near the boundaries of phase space. It is shown that higher-order non-perturbative contributions are enhanced in this kinematic region and lead to a breakdown of the non-relativistic (NRQCD) expansion. This breakdown is a consequence of sensitivity to the kinematics of soft gluon radiation and to the difference between partonic and hadronic phase space. We show how these large corrections can be resummed giving the dominant contribution to the cross section. The resummation leads to the introduction of non-perturbative, universal distribution functions. We discuss the importance of these shape functions for several observables, in particular the energy distribution of photo-produced J_ψ close to the endpoint.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/S0370-2693(97)00832-0DOIArticle
http://arxiv.org/abs/hep-ph/9705286.pdfarXivDiscussion Paper
ORCID:
AuthorORCID
Rothstein, I. Z.0000-0002-3374-4212
Additional Information:© 1997 Elsevier. Received 14 May 1997. M.B. wishes to thank the CalTech theory group for its hospitality while part of this work was done. M.B.W. was supported in part by the US Department of Energy under grant number DE-FGO3-92-ER40701. I.Z.R. was supported in part by the US Department of Energy under grant number DE-FG03-90-ER40546.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)DE-FGO3-92-ER40701
Department of Energy (DOE)E-FG03-90-ER40546
Issue or Number:1-4
Record Number:CaltechAUTHORS:20170408-143640730
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170408-143640730
Official Citation:M. Beneke, I.Z. Rothstein, Mark B. Wise, Kinematic enhancement of non-perturbative corrections to quarkonium production, Physics Letters B, Volume 408, Issue 1, 1997, Pages 373-380, ISSN 0370-2693, http://dx.doi.org/10.1016/S0370-2693(97)00832-0. (http://www.sciencedirect.com/science/article/pii/S0370269397008320)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:75976
Collection:CaltechAUTHORS
Deposited By: 1Science Import
Deposited On:26 Apr 2017 16:59
Last Modified:03 Oct 2019 16:56

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