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The $\epsilon$-regime of dilaton chiral perturbation theory is introduced. We compute the dilaton mass, the chiral condensate and the topological susceptibility in the $\epsilon$-regime, as a function of the fermion mass. The microscopic…

High Energy Physics - Lattice · Physics 2020-01-01 Taro V. Brown , Maarten Golterman , Svend Krøjer , Yigal Shamir , K. Splittorff

We use the Density Matrix Renormalization Group method to study a one-dimensional chain with Peierls electron-phonon coupling, which describes the modulation of the electron hopping by lattice distortions. We demonstrate that this system is…

Strongly Correlated Electrons · Physics 2022-12-05 Alberto Nocera , John Sous , Adrian E. Feiguin , Mona Berciu

The multi-critical behaviour of an approximately scale and conformal invariant quantum field theory, which can be regarded as the deformation of the critical Gross-Neveu model in 3+epsilon dimensions by a nearly marginal parity violating…

High Energy Physics - Theory · Physics 2024-02-16 Gordon W. Semenoff , Riley A. Stewart

We construct a generalized EFT approach to dense compact-star matter that exploits the CCP for hadron-quark continuity at high density, hidden topology and hidden symmetries of QCD. No Landau-Ginzburg-Wilsonian-type phase transition is…

Nuclear Theory · Physics 2020-07-15 Yong-Liang Ma , Mannque Rho

It is shown that in extensions of the standard model of quarks and leptons where additive lepton number $L$ is broken by two units, so that $Z_2$ lepton parity, i.e. $(-1)^L$ which is either even or odd, remains exactly conserved, there is…

High Energy Physics - Phenomenology · Physics 2015-07-08 Ernest Ma

We propose a minimal model where a dark sector, odd under a $\mathcal{Z}_2$ discrete symmetry, is the seed of lepton number violation in the neutrino sector at the loop level, in the context of the linear seesaw mechanism. Neutrino mass…

High Energy Physics - Phenomenology · Physics 2023-07-19 A. Batra , H. B. Câmara , F. R. Joaquim

We study the physics with finite nuclear density in the framework of AdS/QCD with holographic baryon field included. Based on a mean field type approach, we introduce the nucleon density as a bi-fermion condensate of the lowest mode of the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Youngman Kim , Chang-Hwan Lee , Ho-Ung Yee

We discuss the presence of a light dilaton in Conformal Field Theories deformed by a single scalar operator, in the holographic realization consisting of confining Renormalization Group flows. Then, we apply this formalism to study the…

High Energy Physics - Phenomenology · Physics 2016-11-23 Eugenio Megias , Oriol Pujolas , Mariano Quiros

In a recent Letter we presented a systematic way of testing the seesaw origin of neutrino mass in the context of the Minimal Left-Right Symmetric Model. The essence of the program is to exploit lepton number violating decays of doubly…

High Energy Physics - Phenomenology · Physics 2019-12-25 Goran Senjanovic , Vladimir Tello

The current theoretical status in the analysis and interpretation of low-mass dilepton measurements in (ultra-) relativistic heavy-ion experiments is reviewed. Special emphasis is put on potential signals of (partial) restoration of…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. Rapp , J. Wambach

This Letter proposes a new search for confining dark sectors at the Large Hadron Collider. As a result of the strong dynamics in the hidden sector, dark matter could manifest in proton-proton collisions at the Large Hadron Collider in form…

High Energy Physics - Phenomenology · Physics 2022-09-07 Cesare Cazzaniga , Annapaola de Cosa

We study the phase structure of dense hadronic matter including $\Delta(1232)$ as well as N(939) based on the parity partner structure, where the baryons have their chiral partners with a certain amount of chiral invariant masses. We show…

Nuclear Theory · Physics 2018-06-13 Yusuke Takeda , Youngman Kim , Masayasu Harada

We consider the parity doublet model for nucleonic and delta matter to investigate the structure of neutron stars. We show that it is possible to reconcile the multi-messenger astronomy constraints within a purely hadronic equation of state…

Nuclear Theory · Physics 2022-08-09 Michał Marczenko , Krzysztof Redlich , Chihiro Sasaki

We construct nuclear matter based on an extended parity doublet model including four light nucleons $N(939)$, $N(1440)$, $N(1535)$, and $N(1650)$. We exclude some values of the chiral invariant masses by requiring the saturation properties…

Nuclear Theory · Physics 2019-08-21 Takahiro Yamazaki , Masayasu Harada

We develop an effective-model description arising from a recently proposed scale-invariant hidden scalar-QCD, which has been used to explain the dynamical origin of the electroweak scale. In addition to the previous works, our new effective…

High Energy Physics - Phenomenology · Physics 2019-05-08 Ruiwen Ouyang , Shinya Matsuzaki

We consider a system of generalized coupled Discrete Nonlinear Schr\"{o}dinger (DNLS) equations, derived as a tight-binding model from the Gross-Pitaevskii-type equations describing a zigzag chain of weakly coupled condensates of…

Pattern Formation and Solitons · Physics 2019-02-19 Magnus Johansson , Petra P. Beličev , Goran Gligorić , Dmitry R. Gulevich , Dmitry V. Skryabin

We consider Einstein-Maxwell-dilaton gravity with the non-minimal exponential coupling between the dilaton and the Maxwell field emerging from low energy heterotic string theory. The dilaton is endowed with a potential that originates from…

General Relativity and Quantum Cosmology · Physics 2020-08-26 Dumitru Astefanesei , Jose Luis Blázquez-Salcedo , Carlos Herdeiro , Eugen Radu , Nicolas Sanchis-Gual

We study thermodynamics of nuclear matter in a two-flavored parity doublet model within the mean field approximation. Parameters of the model are chosen to reproduce correctly the properties of the nuclear ground state. The model predicts…

High Energy Physics - Phenomenology · Physics 2014-11-21 Chihiro Sasaki , Igor Mishustin

We study the extension of the Standard Model (SM) with a light dilaton in a five dimensional warped model. In particular, we analyze the coupling of the dilaton with the SM matter fields, compare the model predictions with Electroweak…

High Energy Physics - Phenomenology · Physics 2016-09-08 Eugenio Megias , Giuliano Panico , Oriol Pujolas , Mariano Quiros

In this talk I summarize our recent works on the chiral phase transition in the large flavor QCD studied by the hidden local symmetry (HLS). Bare parameters in the HLS are determined by matching the HLS with the underlying QCD at the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Masayasu Harada