Excited-state contribution to the axial-vector and pseudoscalar correlators with two extra pions

Bär O, Golterman M (2013)
Physical Review D 87(1): 014505.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Bär, OliverUniBi; Golterman, Maarten
Abstract / Bemerkung
We study multi-particle state contributions to the QCD two-point functions of the axial-vector and pseudo-scalar quark bilinears in a finite spatial volume. For sufficiently small quark masses one expects three-meson states with two additional pions at rest to have the lowest total energy after the ground state. We calculate this three-meson state contribution using chiral perturbation theory. We find it to be strongly suppressed and too small to be seen in present-day lattice simulations.
Erscheinungsjahr
2013
Zeitschriftentitel
Physical Review D
Band
87
Ausgabe
1
Art.-Nr.
014505
ISSN
1550-7998
eISSN
1550-2368
Page URI
https://pub.uni-bielefeld.de/record/2552621

Zitieren

Bär O, Golterman M. Excited-state contribution to the axial-vector and pseudoscalar correlators with two extra pions. Physical Review D. 2013;87(1): 014505.
Bär, O., & Golterman, M. (2013). Excited-state contribution to the axial-vector and pseudoscalar correlators with two extra pions. Physical Review D, 87(1), 014505. doi:10.1103/PhysRevD.87.014505
Bär, O., and Golterman, M. (2013). Excited-state contribution to the axial-vector and pseudoscalar correlators with two extra pions. Physical Review D 87:014505.
Bär, O., & Golterman, M., 2013. Excited-state contribution to the axial-vector and pseudoscalar correlators with two extra pions. Physical Review D, 87(1): 014505.
O. Bär and M. Golterman, “Excited-state contribution to the axial-vector and pseudoscalar correlators with two extra pions”, Physical Review D, vol. 87, 2013, : 014505.
Bär, O., Golterman, M.: Excited-state contribution to the axial-vector and pseudoscalar correlators with two extra pions. Physical Review D. 87, : 014505 (2013).
Bär, Oliver, and Golterman, Maarten. “Excited-state contribution to the axial-vector and pseudoscalar correlators with two extra pions”. Physical Review D 87.1 (2013): 014505.

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arXiv: 1209.2258

Inspire: 1185106

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