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

Abstract

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.

Authors:
 [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:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1353495
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
Resource Type:
Journal Article: Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 770; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Transverse spin; Perturbative QCD; Collinear factorization; JLAB-THY-17-2405

Citation Formats

Gamberg, Leonard, Kang, Zhong-Bo, Pitonyak, Daniel, and Prokudin, Alexei. Phenomenological constraints on A N in p ↑ p → π X from Lorentz invariance relations. United States: N. p., 2017. Web. doi:10.1016/j.physletb.2017.04.061.
Gamberg, Leonard, Kang, Zhong-Bo, Pitonyak, Daniel, & Prokudin, Alexei. Phenomenological constraints on A N in p ↑ p → π X from Lorentz invariance relations. United States. doi:10.1016/j.physletb.2017.04.061.
Gamberg, Leonard, Kang, Zhong-Bo, Pitonyak, Daniel, and Prokudin, Alexei. 2017. "Phenomenological constraints on A N in p ↑ p → π X from Lorentz invariance relations". United States. doi:10.1016/j.physletb.2017.04.061.
@article{osti_1353495,
title = {Phenomenological constraints on A N in p ↑ p → π X from Lorentz invariance relations},
author = {Gamberg, Leonard and Kang, Zhong-Bo and Pitonyak, Daniel and Prokudin, Alexei},
abstractNote = {Here, we present a new analysis of AN 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.},
doi = {10.1016/j.physletb.2017.04.061},
journal = {Physics Letters. Section B},
number = C,
volume = 770,
place = {United States},
year = 2017,
month = 4
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.physletb.2017.04.061

Citation Metrics:
Cited by: 3works
Citation information provided by
Web of Science

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  • 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.
  • Cited by 40
  • For this research, we analyze the MeV/GeV emission from four bright gamma-ray bursts (GRBs) observed by the Fermi Large Area Telescope to produce robust, stringent constraints on a dependence of the speed of light in vacuo on the photon energy (vacuum dispersion), a form of Lorentz invariance violation (LIV) allowed by some quantum gravity (QG) theories. First, we use three different and complementary techniques to constrain the total degree of dispersion observed in the data. Additionally, using a maximally conservative set of assumptions on possible source-intrinsic, spectral-evolution effects, we constrain any vacuum dispersion solely attributed to LIV. We then derivemore » limits on the QG energy scale (the energy scale where LIV-inducing QG effects become strong, E QG) and the coefficients of the Standard Model Extension. For the subluminal case (where high-energy photons propagate more slowly than lower-energy photons) and without taking into account any source-intrinsic dispersion, our most stringent limits (at 95% C.L.) are obtained from GRB 090510 and are E QG,1 > 7.6 times the Planck energy (E Pl) and E QG,2 > 1.3 × 10 11 GeV for linear and quadratic leading-order LIV-induced vacuum dispersion, respectively. In conclusion, these limits improve the latest constraints by Fermi and H.E.S.S. by a factor of ~2 . Our results disfavor any class of models requiring E QG,1 ≲ E Pl .« less
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