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相关论文: Baryons in a soft-wall AdS-Schwarzschild approach …

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I describe a novel phase structure of cold dense baryonic matter predicted in a hidden local symmetry approach anchored on gauge theory and in a holographic dual approach based on the Sakai-Sugimoto model of string theory. This new phase is…

高能物理 - 唯象学 · 物理学 2010-12-09 Mannque Rho

We present a phenomenological unpolarized Parton Distribution Functions for diquarks based on a soft-wall light front AdS/QCD quark-diquark nucleon model. From a probed model consistent with the Drewll-Yan-West relation and quark counting…

高能物理 - 唯象学 · 物理学 2021-07-09 Benjamin Rodriguez-Aguilar , Ya. A. Berdnikov

We address the modification of open heavy-flavor mesons in a hot medium of light mesons within an effective theory approach consistent with chiral and heavy-quark spin-flavor symmetries and the use of the imaginary time formalism to…

高能物理 - 唯象学 · 物理学 2022-02-16 Gloria Montana , Angels Ramos , Laura Tolos , Juan M. Torres-Rincon

This thesis describes the use of Dyson-Schwinger equations (DSEs) to study baryon bound states in QCD. In this work, octet baryon axial form factors are calculated using a symmetry-preserving treatment of a vector $\times$ vector contact…

高能物理 - 唯象学 · 物理学 2024-02-06 Peng Cheng

Meson properties at finite temperature and density are studied in lattice QCD simulations with two-flavor Wilson fermions. For this purpose, we investigate screening masses of mesons in pseudo-scalar (PS) and vector (V) channels. The…

高能物理 - 格点 · 物理学 2010-12-10 Hideaki Iida , Yu Maezawa , Koichi Yazaki

We construct a new, simple phenomenological model along the lines of AdS/QCD. The essential new ingredient is the brane-antibrane effective action including the open string tachyon proposed by Sen. Chiral symmetry breaking happens because…

高能物理 - 唯象学 · 物理学 2010-07-05 Ioannis Iatrakis , Elias Kiritsis , Angel Paredes

We study the spectrum of light baryons and hyperons as a function of temperature using lattice gauge theory methods. We find that masses of positive parity states are temperature independent, within errors, in the hadronic phase. The…

高能物理 - 格点 · 物理学 2019-11-06 Gert Aarts , Chris Allton , Davide de Boni , Jonas Glesaaen , Simon Hands , Benjamin Jäger , Jon-Ivar Skullerud

Competing and intertwined orders including inhomogeneous patterns of spin and charge are observed in many correlated electron materials, such as high-temperature superconductors. Introducing a new development of the constrained-path…

强关联电子 · 物理学 2023-02-24 Bo Xiao , Yuan-Yao He , Antoine Georges , Shiwei Zhang

Starting from the multi-local Klein-Gordon equations with Lorentz-scalar squared-mass operator we give a covariant quark representation of the general composite mesons and baryons with definite Lorentz transformation property. The mass…

高能物理 - 唯象学 · 物理学 2009-11-07 Shin Ishida , Muneyuki Ishida

In this presentation, we summarize selectively recent results of the electromagnetic form factors of singly heavy baryons with spin 1/2 and related quantities, which were derived within a framework of the self-consistent chiral…

高能物理 - 唯象学 · 物理学 2018-11-07 June-Young Kim , Hyun-Chul Kim

Starting from the approximate symmetries of QCD, namely chiral symmetry for light quarks and spin and flavor symmetry for heavy quarks, we investigate the low-energy properties of heavy hadrons. For this purpose we construct a consistent…

高能物理 - 唯象学 · 物理学 2007-05-23 D. Ebert , T. Feldmann

We study baryons in SU(N) gauge theories at finite temperature according to the gauge/string correspondence based on IIB string theory. The baryon is constructed out of D5 brane and $N$ fundamental strings to form a color singlet $N$-quark…

高能物理 - 理论 · 物理学 2009-11-13 Kazuo Ghoroku , Masafumi Ishihara , Akihiro Nakamura , Fumihiko Toyoda

We consider the Ising spin glass for the arbitrary spin S with the short- ranged interaction using the Bethe- Peierls approximation previously formulated by Serva and Paladin for the same system but limited to S=1/2. Results obtained by us…

无序系统与神经网络 · 物理学 2009-10-31 K. Walasek , K. Lukierska- Walasek , M. Wodawski

We describe a minimal model, based on a spin only Hamiltonian with a single energy scale for itinerant electron metamagnetism. Within this model the metamagnetic critical field is directly proportional to the temperature where a peak in the…

强关联电子 · 物理学 2018-08-20 P. Kumar , B. S. Shivaram , V. Celli

We continue our attempts to systematize baryons, which are composed of light quarks ($q=u,d$), as quark--diquark systems. The notion of two diquarks is used: (i) $D^{1}_{1}$, with the spin $S_D=1$ and isospin $I_D=1$ and (ii) $D^{0}_{0}$,…

高能物理 - 唯象学 · 物理学 2010-02-09 A. V. Anisovich , V. V. Anisovich , M. A. Matveev , V. A. Nikonov , A. V. Sarantsev , T. O. Vulfs

In the context of bottom-up AdS/QCD models, we discuss how the configurational entropy can describe heavy non-$q\,\bar{q}$ states. Using the non-quadratic softwall model, introduced to describe non-linear Regge trajectories, we parametrize…

高能物理 - 唯象学 · 物理学 2024-01-03 Miguel Angel Martin Contreras , Alfredo Vega

We use numerical simulations to investigate how the statistical properties of dark matter (DM) haloes are affected by the baryonic processes associated with galaxy formation. We focus on how these processes influence the spin and shape of a…

宇宙学与河外天体物理 · 物理学 2015-06-05 S. E. Bryan , S. T. Kay , A. R. Duffy , J. Schaye , C. Dalla Vecchia , C. M. Booth

We construct an extended version of the linear sigma model in such a way as to describe spin-$1$ hadrons as well as spin-$0$ hadrons in two-color QCD (QC$_2$D) by respecting the Pauli-G\"{u}rsey $SU(4)$ symmetry. Within a mean-field…

高能物理 - 唯象学 · 物理学 2023-12-29 Daiki Suenaga , Kotaro Murakami , Etsuko Itou , Kei Iida

We study hadronic decays of mesons and baryons in the context of the Dyson-Schwinger equations of QCD. Starting from a well-established effective interaction in rainbow-ladder truncation, we consistently calculate all ingredients of the…

高能物理 - 唯象学 · 物理学 2011-09-07 Valentin Mader , Gernot Eichmann , Martina Blank , Andreas Krassnigg

The low-lying $S$-wave $QQ\bar{s}\bar{s}$ ($Q=c, b$) tetraquark states with $IJ^P=00^+$, $01^+$ and $02^+$ are systematically investigated in the framework of complex scaling range of chiral quark model. Every structure including…

高能物理 - 唯象学 · 物理学 2020-09-30 Gang Yang , Jialun Ping , Jorge Segovia
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