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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
Alternate Identifier(s):
OSTI ID: 1372269
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. Thu . "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 = {Thu Apr 27 00:00:00 EDT 2017},
month = {Thu Apr 27 00:00:00 EDT 2017}
}

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

Citation Metrics:
Cited by: 7works
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.
  • The O({sup 3}P) + NO({sup 2}Π) → O{sub 2}(X{sup 3}Σ{sub g}{sup −}) + N({sup 4}S) reaction is among the N- and O- involving reactions that dominate the energetics of the reactive air flow around spacecraft during hypersonic atmospheric re-entry. In this regime, the temperature in the bow shock typically ranges from 1000 to 20 000 K. The forward and reverse rate coefficients for this reaction derived directly from trajectory calculations over this range of temperature are reported in this letter. Results compare well with the established equilibrium constants for the same reaction from thermodynamic quantities derived from spectroscopy in the gasmore » phase which paves the way for large-scale in silico investigations of equilibrium rates under extreme conditions.« less
  • This work presents two global triplet potential energy surfaces (PESs) for the high-energy reaction N{sub 2}(X{sup 1}Σ) + O({sup 3}P) → NO(X{sup 2}Π) + N({sup 4}S)—in particular, for the lowest energy {sup 3}A′ and {sup 3}A″ PESs. In order to obtain the energies needed for fitting analytic surfaces, we carried out multireference configuration interaction (MRCI) calculations based on wave functions obtained from state-averaged complete active space self-consistent field calculations for 2280 geometries for the three lowest {sup 3}A″ states and for 2298 geometries for the three lowest {sup 3}A′ states. The lowest-energy {sup 3}A′ and {sup 3}A″ states at eachmore » of these geometries were then improved by applying the dynamically scaled external correlation (DSEC) method to all MRCI points, and the resulting DSEC energies were used for construction of the ground-state PES for each symmetry. The many-body component of the DSEC energies for the three-dimensional {sup 3}A′ and {sup 3}A″ PESs was then least-squares fitted in terms of permutationally invariant polynomials in mixed exponential–Gaussian bond order variables. The global and local minima as well as the transition structures of both the {sup 3}A′ and the {sup 3}A″ analytic PES were explored. In agreement with previous work, we find that the reverse reaction is barrierless on the {sup 3}A″ surface along the minimum energy pathway. However, we have explored several new local minima and transition structures on the {sup 3}A′ PES. Furthermore, based on the newly found minima and transition structures, two independent reaction mechanisms have been illustrated for the reaction path on the {sup 3}A′ PES. The analytic surfaces may be used for dynamics calculations of electronically adiabatic reactive scattering and energy transfer.« less
  • We present quasiclassical trajectory simulations of the high-energy collision-induced O({sup 3}P) + N{sub 2} reaction. The simulation results show that reactive scattering may proceed on both the {sup 3}A′ and {sup 3}A″ potential energy surfaces, but the reaction on {sup 3}A″ surface overwhelmingly dominates. At total energies of collision slightly above the threshold, the NO(X{sup 2}Π) product is found to be scattered primarily in the forward direction, and at higher collision energies, the fraction of NO products that scatter in the backward direction increases. Two-dimensional joint distributions of the center-of-mass differential cross section and translational energy have been examined tomore » unravel the details of the scattering as functions of collision energy.« less