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Related papers: C and P violations in the PNJL model

200 papers

We show that parity symmetry is not spontaneously broken in the CP^N sigma model for any value of N when the coefficient of the $\theta$--term becomes $\theta=\pi$ (mod $2\pi$). The result follows from a non-perturbative analysis of the…

High Energy Physics - Theory · Physics 2009-10-30 M. Asorey , F. Falceto

Using $\Delta\chi^2$ which is defined by the difference of the number of events with the CP phase $\delta$ and the hypothetical one with $\delta=0$, we discuss correlations of errors of the CP phase and other oscillation parameters as well…

High Energy Physics - Phenomenology · Physics 2014-11-17 John Pinney , Osamu Yasuda

We compare the physics potential of the upcoming neutrino oscillation experiments Daya Bay, Double Chooz, NOvA, RENO, and T2K based on their anticipated nominal luminosities and schedules. After discussing the sensitivity to theta_{13} and…

High Energy Physics - Phenomenology · Physics 2009-11-18 Patrick Huber , Manfred Lindner , Thomas Schwetz , Walter Winter

A phenomenological expression for the thermodynamic potential of gluons and quarks is constructed which incorporates the features of deconfinement and chiral symmetry restoration known from lattice simulations. The thermodynamic potential…

High Energy Physics - Lattice · Physics 2009-11-07 Peter N. Meisinger , Travis R. Miller , Michael C. Ogilvie

We study the CP-violating bubble wall by solving the coupled equations of motion derived from the two-Higgs-doublet model for the moduli $\rho_i$ and phases $\theta_ i$ of the two scalars $(i=1,2)$ at the transition temperature. We find a…

High Energy Physics - Phenomenology · Physics 2007-05-23 K. Funakubo , A. Kakuto , S. Otsuki , K. Takenaga , F. Toyoda

The theoretical status of direct CP violation $\epsilon'/\epsilon$ is briefly reviewed. Special attention is paid to the recent new consistent predictions for both the ratio $\epsilon'/\epsilon$ and the $\Delta I = 1/2$ rule within the…

High Energy Physics - Phenomenology · Physics 2017-08-23 Yue-Liang Wu

We propose the complex group theoretical Clebsch-Gordon coefficients as a novel origin of CP violation. This is manifest in our model based on SU(5) combined with the double tetrahedral group, T'. Due to the presence of the doublet…

High Energy Physics - Phenomenology · Physics 2015-05-14 Mu-Chun Chen , K. T. Mahanthappa

We give a new perspective on the properties of quarks and gluons at finite temperature T in N_f = 2 ~ 6 QCD. We point out the existence of an IR fixed point for the gauge coupling constant at T>T_c (T_c is the chiral phase transition…

High Energy Physics - Lattice · Physics 2014-01-24 K. -I. Ishikawa , Y. Iwasaki , Yu Nakayama , T. Yoshie

We present a pedagogical review of the phenomenology of CP violation, with emphasis on B decays. Main topics include the phenomenology of neutral meson systems, CP violation in the Standard Model of electroweak interactions, and B decays.…

High Energy Physics - Phenomenology · Physics 2007-05-23 Joao P. Silva

We report on a search for CP violation in tau -> K^0_S pi nu_tau decays using a data sample of 699 fb^{-1} collected in the Belle experiment at the KEKB electron-positron asymmetric-energy collider. The CP asymmetry is measured in four bins…

High Energy Physics - Experiment · Physics 2015-03-17 M. Bischofberger , H. Hayashii , K. Adamczyk , H. Aihara , V. Aulchenko , A. M. Bakich , V. Balagura , E. Barberio , K. Belous , A. Bozek , M. Bracko , T. E. Browder , P. Chen , B. G. Cheon , C. -C. Chiang , I. -S. Cho , K. Cho , Y. Choi , M. Danilov , Z. Dolezal , A. Drutskoy , S. Eidelman , D. Epifanov , B. Golob , H. Ha , J. Haba , K. Hayasaka , Y. Horii , Y. Hoshi , W. -S. Hou , Y. B. Hsiung , H. J. Hyun , K. Inami , A. Ishikawa , R. Itoh , M. Iwabuchi , Y. Iwasaki , T. Julius , J. H. Kang , H. Kawai , T. Kawasaki , C. Kiesling , H. O. Kim , M. J. Kim , Y. J. Kim , K. Kinoshita , B. R. Ko , P. Kodys , P. Krizan , Y. -J. Kwon , S. -H. Kyeong , J. S. Lange , M. J. Lee , S. -H. Lee , J. Li , Y. Li , C. Liu , R. Louvot , J. MacNaughton , S. McOnie , K. Miyabayashi , H. Miyata , Y. Miyazaki , R. Mizuk , G. B. Mohanty , A. Moll , T. Mori , Y. Nagasaka , E. Nakano , M. Nakao , H. Nakazawa , S. Nishida , K. Nishimura , O. Nitoh , T. Ohshima , S. Okuno , G. Pakhlova , H. Park , H. K. Park , M. Petric , L. E. Piilonen , M. Röhrken , S. Ryu , H. Sahoo , Y. Sakai , O. Schneider , C. Schwanda , K. Senyo , M. Shapkin , J. -G. Shiu , B. Shwartz , F. Simon , P. Smerkol , Y. -S. Sohn , S. Stanic , M. Staric , T. Sumiyoshi , Y. Teramoto , K. Trabelsi , S. Uehara , T. Uglov , S. Uno , G. Varner , A. Vinokurova , A. Vossen , C. H. Wang , P. Wang , M. Watanabe , Y. Watanabe , E. Won , H. Yamamoto , Y. Yamashita , C. Z. Yuan , P. Zhou , V. Zhulanov , T. Zivko

Assuming that a quantum field theory with a $\theta$-vacuum term in the action shows non-trivial $\theta$-dependence and provided that some reasonable properties of the probability distribution function of the order parameter hold, we argue…

High Energy Physics - Theory · Physics 2009-11-10 V. Azcoiti , A. Galante , V. Laliena

Inhomogeneous pseudoscalar and scalar Bethe-Salpeter equations solved using a renormalisation-group-improved rainbow-ladder truncation exhibit bound state poles below and above T_c, the critical temperature for chiral symmetry restoration.…

Nuclear Theory · Physics 2010-03-04 P. Maris , C. D. Roberts , S. M. Schmidt , P. C. Tandy

Based on the spontaneous breaking of chiral symmetry, chiral perturbation theory (ChPT) is believed to approximate confinement scale QCD. Dedicated and increasingly accurate experiments and improving lattice calculations are confirming this…

High Energy Physics - Experiment · Physics 2013-04-17 A. M. Bernstein

We address the validity of the usual procedure to determine the sensitivity of neutrino oscillation experiments to CP violation. An explicit calibration of the test statistic is performed through Monte Carlo simulations for several…

High Energy Physics - Phenomenology · Physics 2015-06-22 Mattias Blennow , Pilar Coloma , Enrique Fernandez-Martinez

We investigate QCD matter using the two-flavor PNJL model and find that the shear viscosity to entropy density ratio {\eta}/s reaches a minimum while the bulk viscosity {\zeta}/s peaks near the chiral crossover line, particularly at large…

General Physics · Physics 2025-04-29 Jingxu Wu , Yuwei Yin , Jianing Shi

We discuss the modular $A_4$ invariant model of leptons combining with the generalized CP symmetry. In our model, both CP and modular symmetries are broken spontaneously by the vacuum expectation value of the modulus $\tau$. The source of…

High Energy Physics - Phenomenology · Physics 2021-03-17 Hiroshi Okada , Morimitsu Tanimoto

Effects of tensor spin polarization (TSP) on the chiral restoration and deconfinement phase transitions are studied in Polyakov loop extended Nambu-Jona-Lasinio (PNJL) model. For chiral phase transition, the higher the polarized degree of…

High Energy Physics - Phenomenology · Physics 2024-05-27 Yan-Ru Bao , Sheng-Qin Feng

We propose a simple mechanism which enforces |U_{mu j}| = | U_{tau j}| forall j = 1,2,3 in the lepton mixing matrix U. This implies maximal atmospheric neutrino mixing and a maximal CP-violating phase but does not constrain the reactor…

High Energy Physics - Phenomenology · Physics 2015-06-05 P. M. Ferreira , W. Grimus , L. Lavoura , P. O. Ludl

We review recent work on thermal resonances and their connection with chiral symmetry and $U(1)_A$ restoration within the QCD phase diagram. In particular, the $f_0(500)$ and $K_0^* (700)$ states generated from $\pi\pi$ and $\pi K$…

High Energy Physics - Phenomenology · Physics 2022-03-08 Angel Gómez Nicola , Jacobo Ruiz de Elvira , Andrea Vioque-Rodríguez

We propose a model of spontaneous CP violation to address the strong CP problem in warped extra dimensions that relies on sequestering flavor and CP violation. We assume that brane-localized Higgs Yukawa interactions respect a U(3) flavor…

High Energy Physics - Theory · Physics 2009-01-06 Clifford Cheung , A. Liam Fitzpatrick , Lisa Randall