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相关论文: Excited $J^{--}$ meson resonances at the SU(3) fla…

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We extend an earlier calculation within lattice QCD of excited light meson resonances with $J^{PC}=1^{--}, 2^{--}, 3^{--}$ at the SU(3) flavor point in the singlet representation, by considering the octet representation. In this case the…

高能物理 - 格点 · 物理学 2024-06-12 Jozef J. Dudek , Christopher T. Johnson

We report on the extraction of an excited spectrum of isoscalar mesons using lattice QCD. Calculations on several lattice volumes are performed with a range of light quark masses corresponding to pion masses down to about 400 MeV. The…

高能物理 - 格点 · 物理学 2013-11-22 Jozef J. Dudek , Robert G. Edwards , Peng Guo , Christopher E. Thomas

We present the first determination of the hadronic decays of the lightest exotic $J^{PC}=1^{-+}$ resonance in lattice QCD. Working with SU(3) flavor symmetry, where the up, down and strange quark masses approximately match the physical…

高能物理 - 格点 · 物理学 2021-03-23 Antoni J. Woss , Jozef J. Dudek , Robert G. Edwards , Christopher E. Thomas , David J. Wilson

We present the ground and excited state spectra of singly, doubly and triply-charmed baryons by using dynamical lattice QCD. A large set of baryonic operators that respect the symmetries of the lattice and are obtained after subduction from…

高能物理 - 格点 · 物理学 2014-01-23 M. Padmanath , Robert G. Edwards , Nilmani Mathur , Michael Peardon

The large radiative production rate for pseudoscalar mesons in the $J/\psi$ radiative decay remains elusive. We present the first lattice QCD calculation of partial decay width of $J/\psi$ radiatively decaying into $\eta_{(2)}$, the…

高能物理 - 格点 · 物理学 2023-02-14 Xiangyu Jiang , Feiyu Chen , Ying Chen , Ming Gong , Ning Li , Zhaofeng Liu , Wei Sun , Renqiang Zhang

Lattice QCD calculations are presented for the spectra of N* excited states with spins up to J = 7/2. Ambiguities of the standard method of spin identification are shown to be overcome by the use of lattice operators that transform…

高能物理 - 格点 · 物理学 2011-11-18 Stephen Wallace

We extract to high statistical precision an excited spectrum of single-particle isoscalar mesons using lattice QCD, including states of high spin and, for the first time, light exotic JPC isoscalars. The use of a novel quark field…

In this work we determine the finite-volume lattice QCD spectrum at the flavor symmetric $\mathrm{SU}(3)$ point in the meson-baryon singlet and octet irreducible representations. We construct the appropriate interpolation operators and…

高能物理 - 格点 · 物理学 2026-05-28 Javier Suarez Sucunza , Thomas Luu , Maxim Mai , Ferenc Pittler , Carsten Urbach , Haobo Yan

We present a lattice analysis of the light pseudoscalar mesons with consideration for the mixing between the flavour-neutral states $\pi^0$, $\eta$ and $\eta^\prime$. We extract the masses and flavour compositions of the pseudoscalar meson…

We study ground and radial excitations of flavor singlet and flavored pseudoscalar mesons within the framework of the rainbow-ladder truncation using an infrared massive and finite interaction in agreement with recent results for the…

核理论 · 物理学 2015-06-22 E. Rojas , B. El-Bennich , J. P. B. C. de Melo

We use lattice methods to evaluate from first principles the spectrum of hybrid mesons produced by gluonic excitations in quenched QCD with quark masses near the strange quark mass. For the spin-exotic mesons with $J^{PC}=1^{-+},\ 0^{+-}$,…

高能物理 - 格点 · 物理学 2009-09-25 P. Lacock , C. Michael , P. Boyle , P. Rowland

We present an exploratory lattice QCD analysis of the $ \Omega $-baryon spectrum. Using smeared three-quark operators in a correlation matrix analysis, we report masses for the ground, first and second excited states of the $ J^P =…

高能物理 - 格点 · 物理学 2024-08-30 Liam Hockley , Waseem Kamleh , Derek Leinweber , Anthony Thomas

CP-PACS and JLQCD Collaborations are carrying out a joint project of the 2+1 flavor full QCD with the RG-improved gauge action and the non-perturbatively ${\cal O}(a)$-improved Wilson quark action. This simulation removes quenching effects…

Excited state spectra of $B$, $B_s$ and $B_c$ mesons are computed using lattice QCD. Working with a large basis of carefully constructed, approximately-local $q\bar{q}$-like operators we determine a rich spectrum of states up to $J=4$ in…

高能物理 - 格点 · 物理学 2025-02-10 Luke Gayer , Sinéad M. Ryan , David J. Wilson

We present results for the spectrum of static-light mesons from Nf=2 lattice QCD. These results were obtained using all-to-all light quark propagators on an anisotropic lattice, yielding an improved signal resolution when compared to more…

高能物理 - 格点 · 物理学 2008-11-26 Justin Foley , Alan O'Cais , Sinead M. Ryan , Mike Peardon

Coupled-channel $\pi K$ and $\eta K$ scattering amplitudes are determined by studying the finite-volume energy spectra obtained from dynamical lattice QCD calculations. Using a large basis of interpolating operators, including both those…

高能物理 - 唯象学 · 物理学 2015-03-18 David J. Wilson , Jozef J. Dudek , Robert G. Edwards , Christopher E. Thomas

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

We give results for the $B$ and the $D$ meson spectrum using NRQCD on the lattice in the quenched approximation. The masses of radially and orbitally excited states are calculated as well as $S$-wave hyperfine and $P$-wave fine structure.…

高能物理 - 唯象学 · 物理学 2010-01-18 J. Hein , S. Collins , C. T. H. Davies , A. Ali Khan , H. Newton , C. Morningstar , J. Shigemitsu , J. Sloan

Lattice QCD has matured to a degree where it is now possible to study excited hadrons as they truly appear in nature, as short-lived resonant enhancements decaying into multiple possible final states. Through variational analysis of…

高能物理 - 格点 · 物理学 2018-09-21 Jozef J. Dudek

I review highlights of recent results in quark-flavor physics and heavy-quark spectroscopy from lattice QCD, with emphasis on $B$-meson decays and excited and exotic charmonium states.

高能物理 - 格点 · 物理学 2015-11-25 Carleton DeTar
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