Studying chiral imbalance using Chiral Perturbation Theory

Autor: Andrea Vioque-Rodríguez, Ángel Gómez Nicola, Domenec Espriu

We analize the most general low-energy effective lagrangian including local parity violating terms parametrized by an axial chemical potential $\mu_5$. This result is obtained following the external source method, up to $\mathcal{O}(p^4)$ order in th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65b0f3c78ca5007c0ab464c02dd502f4
http://arxiv.org/abs/2112.13038

The role of strangeness in chiral and $U(1)_A$ restoration

Autor: D. Álvarez-Herrero, Andrea Vioque-Rodríguez, J. Ruiz de Elvira, A. Gómez Nicola

Publikováno v: E-Prints Complutense. Archivo Institucional de la UCM
instname
Gómez Nicola, A.; Ruiz de Elvira, J.; Vioque-Rodríguez, A.; Álvarez-Herrero, D. (2021). The role of strangeness in chiral and U(1)_A restoration. The European physical journal. C, Particles and fields, 81(7), p. 637. Springer 10.1140/epjc/s10052-021-09458-1

We use recently derived Ward identities and lattice data for the light- and strange-quark condensates to reconstruct the scalar and pseudoscalar susceptibilities ($\chi_S^\kappa$, $\chi_P^K$) in the isospin 1/2 channel. We show that $\chi_S^\kappa$ d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e63ed40a73d8e9a774547b2983d8efc
http://arxiv.org/abs/2012.12279

Patterns and Partners Within the QCD Phase Diagram Including Strangeness

Autor: Jacobo Ruiz de Elvira, Andrea Vioque-Rodríguez, Angel Gómez Nicola

Publikováno v: Springer Proceedings in Physics ISBN: 9783030534479

We review the current situation of the pattern of chiral symmetry restoration. In particular, we analyze partner degeneration for O(4) and \(U(1)_A\) symmetries within the context of Ward Identities and Effective Theories. The application of Ward Ide

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fd4bbe8437d7caef26bb114eac1280e

The QCD topological charge and its thermal dependence: the role of the eta'

Autor: J. Ruiz de Elvira, A. Gómez Nicola, Andrea Vioque-Rodríguez

Publikováno v: E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
Journal of High Energy Physics
Nicola, A. Gómez; Ruiz de Elvira, J.; Vioque-Rodríguez, A. (2019). The QCD topological charge and its thermal dependence: the role of the η′. Journal of High Energy Physics, 2019(11) Springer 10.1007/JHEP11(2019)086
E-Prints Complutense. Archivo Institucional de la UCM
instname
Journal of High Energy Physics, Vol 2019, Iss 11, Pp 1-31 (2019)

We analyze the contribution of the η′ (958) meson in the first two non-trivial moments of the QCD topological charge distribution, namely, the topological susceptibility and the fourth-order cumulant of the vacuum energy density. We perform our st

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2b532e1c0ce1b3ec76dc184fe1078bf
https://eprints.ucm.es/id/eprint/59519/1/gnicola58libre+CC.pdf

Recent advances on chiral partners and patterns and the thermal f0 (500) in chiral restoration

Autor: Silvia Ferreres-Solé, Angel Gómez Nicola, Jacobo Ruiz de Elvira, Andrea Vioque-Rodríguez

Publikováno v: Gómez Nicola, Ángel; Ruiz de Elvira, Jacobo; Ferreres-Solé, Silvia; Vioque-Rodríguez, Andrea (20 March 2018). Recent advances on chiral partners and patterns and the thermal f0 (500) in chiral restoration. PoS-proceedings of science. Trieste, Italy: Scuola Internazionale Superiore di Studi Avanzati SISSA 10.22323/1.310.0204

We review recent results on chiral SU(2)L ×SU(2)R ≈ O(4) and U(1)A symmetry restoration in QCD. In particular, we discuss how Ward Identities allow one to derive general results on partner degeneration, which shed light on the distinction between

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4629a5c4cb7241c35ecb36c78204f116