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Two-current correlations in the pion on the lattice

Bali, Gunnar S., Bruns, Peter C., Castagnini, Luca, Diehl, Markus, Gaunt, Jonathan R., Gläßle, Benjamin, Schäfer, Andreas, Sternbeck, André and Zimmermann, Christian (2018) Two-current correlations in the pion on the lattice. Journal of High Energy Physics 2018 (12), pp. 1-48.

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Date of publication of this fulltext: 14 Feb 2019 13:45

at publisher (via DOI)

Other URL: http://doi.org/10.1007/JHEP12(2018)061


Abstract

We perform a systematic study of the correlation functions of two quark currents in a pion using lattice QCD. We obtain good signals for all but one of the relevant Wick contractions of quark fields. We investigate the quark mass dependence of our results and test the importance of correlations between the quark and the antiquark in the pion. Our lattice data are compared with predictions from chiral perturbation theory.


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Item type:Article
Date:11 December 2018
Institutions:Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer
Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Gunnar Bali
Projects:SCOAP3
Identification Number:
ValueType
10.1007/JHEP12(2018)061DOI
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:38357
Owner only: item control page

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