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We compute gluelump masses and mass differences using SU(3) lattice gauge theory. We study states with total angular momentum up to $J = 3$, parity $P = +,-$ and charge conjugation $C = +,-$. Computations on four ensembles with rather fine…

高能物理 - 格点 · 物理学 2024-09-19 Jannis Herr , Carolin Schlosser , Marc Wagner

Many of the XYZ mesons discovered in the last decade can be identified as bound states of a heavy quark and antiquark in Born-Oppenheimer (B-O) potentials defined by the energy of gluon and light-quark fields in the presence of static color…

高能物理 - 唯象学 · 物理学 2014-06-11 Eric Braaten , Christian Langmack , D. Hudson Smith

In the past decade, due to the experimental observation of many charmonium-like states, there has been a revival of hadron spectroscopy. In particular, the experimental observation of charged charmonium-like, $Z_c$ states, and…

The double-gluon hybrid meson configuration was recently proposed and investigated within QCD sum rules. In this talk, we discuss the color structures of the double-gluon hybrid meson and construct current operators with exotic quantum…

高能物理 - 唯象学 · 物理学 2024-10-03 Ding-Kun Lian , Qi-Nan Wang , Xu-Liang Chen , Peng-Fei Yang , Wei Chen , Hua-Xing Chen

We study the mass spectrum of nonrelativistic mesons composed of charm and bottom quarks within the framework of the Curci-Ferrari model in the Landau gauge, focusing on the influence of the gluon mass on our results. We derive the…

高能物理 - 唯象学 · 物理学 2025-09-08 Anaclara Alvez , Nahuel Barrios , Florencia Benítez , Marcela Peláez

We consider the prospects for quantum simulation of condensed matter models exhibiting strong electron-phonon coupling using a hybrid platform of trapped laser-cooled ions interacting with an ultracold atomic gas. This system naturally…

量子气体 · 物理学 2020-09-07 Krzysztof Jachymski , Antonio Negretti

We formulate a Lattice Hamiltonian approach for the modeling of intermediate energy heavy ion collisions. After verifying stationary ground state solutions, we implement this in a calculation of nuclear stopping power and compare our…

核理论 · 物理学 2009-10-31 Declan Persram , Charles Gale

In this paper, we consider a stationary model for a nucleon interacting with the $\omega$ and $\sigma$ mesons in the atomic nucleus. The model is relativistic, and we study it in a nuclear physics nonrelativistic limit. By a shooting…

偏微分方程分析 · 数学 2012-11-26 Loïc Le Treust , Simona Rota Nodari

The isovector bottomoniumlike exotic resonances $Z_b(10610)$ and $Z_b(10650)$ are very close to the thresholds of heavy meson pairs $B \bar B^* \, ( \bar B B^*)$ and $B^* \bar B^*$, and are naturally understood as `molecular' states made of…

高能物理 - 唯象学 · 物理学 2017-12-06 M. B. Voloshin

We use the non-relativistic expansion of QCD (NRQCD) on the lattice to study the lowest hybrid configuration contribution to the ground state of heavy S-wave mesons. Using lowest-order lattice NRQCD to create the heavy-quark propagators, we…

高能物理 - 格点 · 物理学 2008-11-26 Tommy Burch , Doug Toussaint

We report on the calculation of the Quarkonium Hybrid masses for the $cg\bar{c}$, $bg\bar{c}$ and $bg\bar{b}$ systems~\cite{hbrpaper}. A QCD analog of the Born-Oppenheimer approximation including the $\Lambda$--doubling terms has been used.…

高能物理 - 唯象学 · 物理学 2015-10-23 Jaume Tarrús Castellà

Since gluons in QCD are interacting fundamental constituents just as quarks are, we expect that in addition to mesons made from a quark and an antiquark, there should also be glueballs and hybrids (bound states of quarks, antiquarks and…

A constituent gluon model that is informed by recent lattice field theory is developed. The model is then used to compute hybrid strong decay widths, that can be useful for the GlueX collaboration at Jefferson Lab and the PANDA…

高能物理 - 唯象学 · 物理学 2020-07-22 Christian Farina , Hugo Garcia Tecocoatzi , Alessandro Giachino , Elena Santopinto , Eric S. Swanson

We study the meson spectrum of the SU(2) gauge theory with two Wilson fermions in the fundamental representation. The theory unifies both Technicolor and composite Goldstone Boson Higgs models of electroweak symmetry breaking. We have…

高能物理 - 格点 · 物理学 2014-12-24 Rudy Arthur , Vincent Drach , Martin Hansen , Ari Hietanen , Randy Lewis , Claudio Pica , Francesco Sannino

With Gaussian expansion method (GEM), realistic wave functions are used to calculate coupled-channel effects for the bottomonium under the framework of ${}^3P_0$ model. The simplicity and accuracy of GEM are explained. We calculate the mass…

高能物理 - 唯象学 · 物理学 2016-08-17 Yu Lu , Muhammad Naeem Anwar , Bing-Song Zou

A potential model for four interacting quarks is constructed in SU(2) from six basis states -- the three partitions into quark pairs, where the gluon field is either in its ground state or first excited state. With four independent…

高能物理 - 格点 · 物理学 2008-11-26 A. M. Green , P. Pennanen

We present spectra of highly excited D and Ds mesons up to around 3.8 GeV determined using dynamical lattice QCD. We employ novel computational techniques and the variational method with a large basis of carefully constructed operators in…

高能物理 - 唯象学 · 物理学 2013-05-17 Graham Moir , Michael Peardon , Sinead M. Ryan , Christopher E. Thomas , Liuming Liu

Fluctuations of conserved charges allow to study the chemical composition of hadronic matter. A comparison between lattice simulations and the Hadron Resonance Gas (HRG) model suggested the existence of missing strange resonances. To…

We present a unified description of heavy hybrid hadrons based on a constituent-gluon picture embedded in the Born-Oppenheimer (BO) framework. In this approach, the gluonic excitation is treated as a dynamical quasiparticle with a mass…

高能物理 - 唯象学 · 物理学 2026-04-30 Edward Shuryak , Ismail Zahed

We predict several new exotic doubly-heavy hadronic resonances, inferring from the observed exotic bottomonium-like and charmonium-like narrow states $X(3872)$, $Z_b(10610)$, $Z_b(10650)$, $Z_c(3900)$, and $Z_c(4020/4025)$. We interpret the…

高能物理 - 唯象学 · 物理学 2015-09-23 Marek Karliner , Jonathan L. Rosner