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Spontaneous violation of spatial parity in dense baryonic matter in a generalized U(2)L×U(2)R sigma model. / Andrianov, A.A.; Andrianov, V.A.

In: Theoretical and Mathematical Physics, Vol. 175, No. 3, 2013, p. 727-734.

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@article{5ea6e4a56bcc468ca8b78debe1b48ff1,
title = "Spontaneous violation of spatial parity in dense baryonic matter in a generalized U(2)L×U(2)R sigma model",
abstract = "Based on a generalized U(2)L×U(2)R sigma model describing ground and excited states of scalar and pseudoscalar meson singlets and triplets, we investigate the conditions for spatial parity violation for dense baryonic matter in the hadron phase. We introduce {\textquoteleft}t Hooft-type vertices into the model for violating the U(1)A symmetry of quantum chromodynamics by the anomaly. At large values of the chemical potential, broken-parity states can appear in the model, which corresponds to condensation of pseudoscalar fields. We give the conditions on the parameters of the generalized sigma model that determine the transition to the phase with spontaneously broken parity. For different signs of the constants of two {\textquoteleft}t Hooft-type vertices, either pseudoscalar isotriplets or isosinglets undergo condensation.",
keywords = "quantum chromodynamics, scalar meson, pseudoscalar meson, spontaneous violation of spatialparity",
author = "A.A. Andrianov and V.A. Andrianov",
year = "2013",
doi = "10.1007/s11232-013-0058-5",
language = "English",
volume = "175",
pages = "727--734",
journal = "Theoretical and Mathematical Physics (Russian Federation)",
issn = "0040-5779",
publisher = "Springer Nature",
number = "3",

}

RIS

TY - JOUR

T1 - Spontaneous violation of spatial parity in dense baryonic matter in a generalized U(2)L×U(2)R sigma model

AU - Andrianov, A.A.

AU - Andrianov, V.A.

PY - 2013

Y1 - 2013

N2 - Based on a generalized U(2)L×U(2)R sigma model describing ground and excited states of scalar and pseudoscalar meson singlets and triplets, we investigate the conditions for spatial parity violation for dense baryonic matter in the hadron phase. We introduce ‘t Hooft-type vertices into the model for violating the U(1)A symmetry of quantum chromodynamics by the anomaly. At large values of the chemical potential, broken-parity states can appear in the model, which corresponds to condensation of pseudoscalar fields. We give the conditions on the parameters of the generalized sigma model that determine the transition to the phase with spontaneously broken parity. For different signs of the constants of two ‘t Hooft-type vertices, either pseudoscalar isotriplets or isosinglets undergo condensation.

AB - Based on a generalized U(2)L×U(2)R sigma model describing ground and excited states of scalar and pseudoscalar meson singlets and triplets, we investigate the conditions for spatial parity violation for dense baryonic matter in the hadron phase. We introduce ‘t Hooft-type vertices into the model for violating the U(1)A symmetry of quantum chromodynamics by the anomaly. At large values of the chemical potential, broken-parity states can appear in the model, which corresponds to condensation of pseudoscalar fields. We give the conditions on the parameters of the generalized sigma model that determine the transition to the phase with spontaneously broken parity. For different signs of the constants of two ‘t Hooft-type vertices, either pseudoscalar isotriplets or isosinglets undergo condensation.

KW - quantum chromodynamics

KW - scalar meson

KW - pseudoscalar meson

KW - spontaneous violation of spatialparity

U2 - 10.1007/s11232-013-0058-5

DO - 10.1007/s11232-013-0058-5

M3 - Article

VL - 175

SP - 727

EP - 734

JO - Theoretical and Mathematical Physics (Russian Federation)

JF - Theoretical and Mathematical Physics (Russian Federation)

SN - 0040-5779

IS - 3

ER -

ID: 7375248