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Related papers: Spin-2 $N\Omega$ Dibaryon from Lattice QCD

200 papers

For the first time, we determine the complete spin- and momentum-dependent order v^2 corrections to the static interquark potential from simulations of QCD in the valence quark approximation at inverse lattice spacings of 2-3 GeV. A new…

High Energy Physics - Lattice · Physics 2014-11-17 Gunnar S. Bali , Klaus Schilling , Armin Wachter

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…

High Energy Physics - Lattice · Physics 2011-11-18 Stephen Wallace

We present a lattice calculation of dibaryons composed of single-flavor quarks with either charm or strange quark mass. We utilize a set of lattice QCD ensembles with $N_f=2+1+1$ dynamical HISQ fields, two spatial volumes, and four…

High Energy Physics - Lattice · Physics 2025-06-12 Navdeep Singh Dhindsa , Nilmani Mathur , M. Padmanath

We calculate potentials between a proton and a $\Xi^0$ (hyperon with strangeness -2) through the equal-time Bethe-Salpeter wave function, employing quenched lattice QCD simulations with the plaquette gauge action and the Wilson quark action…

Nuclear Theory · Physics 2009-11-13 H. Nemura , N. Ishii , S. Aoki , T. Hatsuda

We present first results for masses of spin-3/2 N and Delta baryons in lattice QCD using Fat-Link Irrelevant Clover (FLIC) fermions. Spin-3/2 interpolating fields providing overlap with both spin-3/2 and spin-1/2 states are considered. In…

High Energy Physics - Lattice · Physics 2008-11-26 J. M. Zanotti , D. B. Leinweber , A. G. Williams , J. B. Zhang , W. Melnitchouk , S. Choe

We investigate S-wave kaon-nucleon ($KN$) interactions with strangeness $S=+1$ in lattice QCD using the time-dependent HAL QCD method. Employing the $(2+1)$-flavor gauge configuration with $m_{\pi}\approx 137~\textrm{MeV}$ and $m_{K}\approx…

High Energy Physics - Lattice · Physics 2026-03-18 Kotaro Murakami , Sinya Aoki , Takumi Doi , Yan Lyu , Wren Yamada

We study the $\Lambda$-nucleon ($\Lambda N$) force by using lattice QCD. The Bethe-Salpeter amplitude is calculated for the lowest scattering state of the $\Lambda N$ so as to obtain the $\Lambda N$ potential. The numerical calculation is…

High Energy Physics - Lattice · Physics 2010-01-21 H. Nemura , N. Ishii , S. Aoki , T. Hatsuda , for PACS-CS Collaboration

We present the lattice QCD studies for baryon-baryon interactions for the first time with (almost) physical quark masses. $N_f = 2+1$ gauge configurations are generated with the Iwasaki gauge action and nonperturbatively $O(a)$-improved…

We present preliminary results on the $I=0$, $S=-2$ $H$ dibaryon in $N_{\rm f}=2+1$ QCD. The calculation is performed with heavier-than-physical quarks ($m_\pi \approx 280$ MeV) on a single CLS ensemble. Correlation matrices are constructed…

Recent lattice QCD calculations from the HAL and NPLQCD Collaborations have reported evidence for the existence of a bound state with strangeness -2 and baryon number 2 at quark masses somewhat higher than the physical values. A controlled…

Nuclear Theory · Physics 2013-08-09 P. E. Shanahan , A. W. Thomas , R. D. Young

The energies of the excited states of the Nucleon, $\Delta$ and $\Omega$ are computed in lattice QCD, using two light quarks and one strange quark on anisotropic lattices. The calculation is performed at three values of the light quark…

High Energy Physics - Lattice · Physics 2015-03-17 J. Bulava , R. G. Edwards , E. Engelson , B. Joó , H-W. Lin , C. Morningstar , D. G. Richards , S. J. Wallace

We present results of the first lattice QCD calculation of three-flavored heavy dibaryons both in the flavor-symmetric and antisymmetric channels. These dibaryons have spin zero, and are constructed using various possible combinations of…

High Energy Physics - Lattice · Physics 2022-10-05 Parikshit Junnarkar , Nilmani Mathur

The N Omega-bar systems with spin S=1 and S=2 are dynamically investigated within the framework of the chiral SU(3) quark model and the extended chiral SU(3) quark model by solving the resonating group method (RGM) equation. The model…

Nuclear Theory · Physics 2008-11-26 D. Zhang , F. Huang , L. R. Dai , Y. W. Yu , Z. Y. Zhang

A novel Lattice QCD (LQCD) method to determine the quark-diquark ($q$-$D$) interaction potential together with the diquark mass ($m_D$) is proposed. Similar to the HAL QCD method, $q$-$D$ potential is determined by demanding it to reproduce…

High Energy Physics - Lattice · Physics 2021-07-21 Kai Watanabe , Noriyoshi Ishii

We evaluate the spin-$3/2 \to$ spin-$1/2$ electromagnetic transitions of the doubly charmed baryons on 2+1 flavor, $32^3 \times 64$ PACS-CS lattices with a pion mass of $156(9)$ MeV/c$^2$. A relativistic heavy quark action is employed to…

High Energy Physics - Lattice · Physics 2018-12-19 H. Bahtiyar , K. U. Can , G. Erkol , M. Oka , T. T. Takahashi

Combining the recent developments of the observations of $\Omega$ sates we calculate the $\Omega$ spectrum up to the $N=2$ shell within a nonrelativistic constituent quark potential model. Furthermore, the strong and radiative decay…

High Energy Physics - Phenomenology · Physics 2020-01-08 Ming-Sheng Liu , Kai-Lei Wang , Qi-Fang Lü , Xian-Hui Zhong

We use a four-dimensional lattice calculation of the full-QCD (quantum chromodynamics, the non-abliean gauge theory of the strong interactions of quarks and gluons) path integrals needed to determine the masses of the charmed and bottom…

High Energy Physics - Lattice · Physics 2011-01-28 Huey-Wen Lin , Saul D. Cohen , Liuming Liu , Nilmani Mathur , Kostas Orginos , Andre Walker-Loud

We report a study of the scattering of two octet baryons using lattice QCD. The baryon-baryon spectrum is computed using distillation on eight lattice ensembles spanning six lattice spacings and multiple volumes, all at the SU(3) flavor…

High Energy Physics - Lattice · Physics 2021-11-19 Jeremy R. Green , Andrew D. Hanlon , Parikshit M. Junnarkar , Hartmut Wittig

We report the first lattice quantum chromodynamics (QCD) study of deuteron($np$)-like dibaryons with heavy quark flavours. These include particles with following dibaryon structures and valence quark contents: $\Sigma_c\Xi_{cc} (uucucc)$,…

High Energy Physics - Lattice · Physics 2019-10-23 Parikshit Junnarkar , Nilmani Mathur

We present results for the nucleon structure functions and form factors obtained from 2+1 flavor lattice QCD with physical light quark masses ($m_{\pi}=135$ MeV) in a large spatial extent of about 10 fm. Our calculations are performed with…

High Energy Physics - Lattice · Physics 2022-01-03 Ryutaro Tsuji , Yasumichi Aoki , Ken-Ichi Ishikawa , Yoshinobu Kuramashi , Shoichi Sasaki , Eigo Shintani , Takeshi Yamazaki