Pion gravitational form factors in the QCD instanton vacuum. II

Wei Yang Liu; Edward Shuryak; Ismail Zahed

doi:10.1103/PhysRevD.110.054022

Pion gravitational form factors in the QCD instanton vacuum. II

Wei Yang Liu
, Edward Shuryak
, Ismail Zahed

Physics and Astronomy

Stony Brook University

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We revisit the hard QCD contributions to the pion gravitational form factors, in terms of the twist-2,3 pion distribution amplitudes (DAs), including novel semihard contributions from the instantons. The pion DAs are evaluated in the QCD instanton vacuum and then properly evolved to higher resolution. The results are compared to our recent results from the QCD instanton vacuum, as well as Bethe-Salpeter calculations and recent lattice data. The interpolated hard and soft contributions to the pion D form factor are used to derive the (gravitational) pressure and shear within the pion, with a clear delineation of their range.

Original language	English
Article number	054022
Journal	Physical Review D
Volume	110
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevD.110.054022
State	Published - Sep 1 2024

Access to Document

10.1103/PhysRevD.110.054022

Cite this

@article{f80bbdbbf4624f3a9ae765232e4ea908,

title = "Pion gravitational form factors in the QCD instanton vacuum. II",

abstract = "We revisit the hard QCD contributions to the pion gravitational form factors, in terms of the twist-2,3 pion distribution amplitudes (DAs), including novel semihard contributions from the instantons. The pion DAs are evaluated in the QCD instanton vacuum and then properly evolved to higher resolution. The results are compared to our recent results from the QCD instanton vacuum, as well as Bethe-Salpeter calculations and recent lattice data. The interpolated hard and soft contributions to the pion D form factor are used to derive the (gravitational) pressure and shear within the pion, with a clear delineation of their range.",

author = "Liu, \{Wei Yang\} and Edward Shuryak and Ismail Zahed",

note = "Publisher Copyright: {\textcopyright} 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.",

year = "2024",

month = sep,

day = "1",

doi = "10.1103/PhysRevD.110.054022",

language = "English",

volume = "110",

journal = "Physical Review D",

issn = "2470-0010",

number = "5",

}

TY - JOUR

T1 - Pion gravitational form factors in the QCD instanton vacuum. II

AU - Liu, Wei Yang

AU - Shuryak, Edward

AU - Zahed, Ismail

N1 - Publisher Copyright: © 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

PY - 2024/9/1

Y1 - 2024/9/1

N2 - We revisit the hard QCD contributions to the pion gravitational form factors, in terms of the twist-2,3 pion distribution amplitudes (DAs), including novel semihard contributions from the instantons. The pion DAs are evaluated in the QCD instanton vacuum and then properly evolved to higher resolution. The results are compared to our recent results from the QCD instanton vacuum, as well as Bethe-Salpeter calculations and recent lattice data. The interpolated hard and soft contributions to the pion D form factor are used to derive the (gravitational) pressure and shear within the pion, with a clear delineation of their range.

AB - We revisit the hard QCD contributions to the pion gravitational form factors, in terms of the twist-2,3 pion distribution amplitudes (DAs), including novel semihard contributions from the instantons. The pion DAs are evaluated in the QCD instanton vacuum and then properly evolved to higher resolution. The results are compared to our recent results from the QCD instanton vacuum, as well as Bethe-Salpeter calculations and recent lattice data. The interpolated hard and soft contributions to the pion D form factor are used to derive the (gravitational) pressure and shear within the pion, with a clear delineation of their range.

UR - https://www.scopus.com/pages/publications/85204479105

U2 - 10.1103/PhysRevD.110.054022

DO - 10.1103/PhysRevD.110.054022

M3 - Article

AN - SCOPUS:85204479105

SN - 2470-0010

VL - 110

JO - Physical Review D

JF - Physical Review D

IS - 5

M1 - 054022

ER -

Pion gravitational form factors in the QCD instanton vacuum. II

Abstract

Access to Document

Other files and links

Fingerprint

Cite this