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Title: Phenomenological constraints on A N in p p → π X from Lorentz invariance relations

Here, we present a new analysis of A N in p p → πX within the collinear twist-3 factorization formalism. We incorporate recently derived Lorentz invariance relations into our calculation and focus on input from the kinematical twist-3 functions, which are weighted integrals of transverse momentum dependent (TMD) functions. Particularly, we use the latest extractions of the Sivers and Collins functions with TMD evolution to compute certain terms in AN . Consequently, we are able to constrain the remaining contributions from the lesser known dynamical twist-3 correlators.
 [1] ;  [2] ;  [1] ;  [3]
  1. Pennsylvania State Univ., University Park, PA (United States). Division of Science
  2. Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy. Mani L. Bhaumik Inst. for Theoretical Physics; Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division
  3. Pennsylvania State Univ., University Park, PA (United States). Division of Science; Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States). Theory Center
Publication Date:
Report Number(s):
JLAB-THY-17-2405; DOE/OR/23177-4061; arXiv:1701.09170
Journal ID: ISSN 0370-2693; PII: S0370269317303350
Grant/Contract Number:
FG02-07ER41460; AC05-06OR23177
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 770; Journal Issue: C; Journal ID: ISSN 0370-2693
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Transverse spin; Perturbative QCD; Collinear factorization; JLAB-THY-17-2405
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1372269