Pion electric polarizability from lattice QCD

Andrei Alexandru; Michael Lujan; Walter Freeman; Frank Lee

doi:10.1063/1.4938619

Pion electric polarizability from lattice QCD

Andrei Alexandru, Michael Lujan, Walter Freeman, Frank Lee

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

Electromagnetic polarizabilities are important parameters for understanding the interaction between photons and hadrons. For pions these quantities are poorly constrained experimentally since they can only be measured indirectly. New experiments at CERN and Jefferson Lab are planned that will measure the polarizabilities more precisely. Lattice QCD can be used to compute these quantities directly in terms of quark and gluons degrees of freedom, using the background field method. We present results for the electric polarizability for two different quark masses, light enough to connect to chiral perturbation theory. These are currently the lightest quark masses used in polarizability studies.

Original language	English (US)
Title of host publication	XIth Conference on Quark Confinement and Hadron Spectrum
Publisher	American Institute of Physics Inc.
Volume	1701
ISBN (Electronic)	9780735413481
DOIs	https://doi.org/10.1063/1.4938619
State	Published - Jan 22 2016
Externally published	Yes
Event	11th Conference on Quark Confinement and Hadron Spectrum - Saint Petersburg, Russian Federation Duration: Sep 8 2014 → Sep 12 2014

Other

Other	11th Conference on Quark Confinement and Hadron Spectrum
Country	Russian Federation
City	Saint Petersburg
Period	9/8/14 → 9/12/14

Keywords

Lattice QCD
Polarizability

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.4938619

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Cite this

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title = "Pion electric polarizability from lattice QCD",

abstract = "Electromagnetic polarizabilities are important parameters for understanding the interaction between photons and hadrons. For pions these quantities are poorly constrained experimentally since they can only be measured indirectly. New experiments at CERN and Jefferson Lab are planned that will measure the polarizabilities more precisely. Lattice QCD can be used to compute these quantities directly in terms of quark and gluons degrees of freedom, using the background field method. We present results for the electric polarizability for two different quark masses, light enough to connect to chiral perturbation theory. These are currently the lightest quark masses used in polarizability studies.",

keywords = "Lattice QCD, Polarizability",

author = "Andrei Alexandru and Michael Lujan and Walter Freeman and Frank Lee",

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booktitle = "XIth Conference on Quark Confinement and Hadron Spectrum",

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note = "11th Conference on Quark Confinement and Hadron Spectrum ; Conference date: 08-09-2014 Through 12-09-2014",

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T1 - Pion electric polarizability from lattice QCD

AU - Alexandru, Andrei

AU - Lujan, Michael

AU - Freeman, Walter

AU - Lee, Frank

PY - 2016/1/22

Y1 - 2016/1/22

N2 - Electromagnetic polarizabilities are important parameters for understanding the interaction between photons and hadrons. For pions these quantities are poorly constrained experimentally since they can only be measured indirectly. New experiments at CERN and Jefferson Lab are planned that will measure the polarizabilities more precisely. Lattice QCD can be used to compute these quantities directly in terms of quark and gluons degrees of freedom, using the background field method. We present results for the electric polarizability for two different quark masses, light enough to connect to chiral perturbation theory. These are currently the lightest quark masses used in polarizability studies.

AB - Electromagnetic polarizabilities are important parameters for understanding the interaction between photons and hadrons. For pions these quantities are poorly constrained experimentally since they can only be measured indirectly. New experiments at CERN and Jefferson Lab are planned that will measure the polarizabilities more precisely. Lattice QCD can be used to compute these quantities directly in terms of quark and gluons degrees of freedom, using the background field method. We present results for the electric polarizability for two different quark masses, light enough to connect to chiral perturbation theory. These are currently the lightest quark masses used in polarizability studies.

KW - Lattice QCD

KW - Polarizability

UR - http://www.scopus.com/inward/record.url?scp=84984590346&partnerID=8YFLogxK

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U2 - 10.1063/1.4938619

DO - 10.1063/1.4938619

M3 - Conference contribution

AN - SCOPUS:84984590346

VL - 1701

BT - XIth Conference on Quark Confinement and Hadron Spectrum

PB - American Institute of Physics Inc.

T2 - 11th Conference on Quark Confinement and Hadron Spectrum

Y2 - 8 September 2014 through 12 September 2014

ER -