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We investigate the photoproduction of $K^*$ vector meson for the study of the $\Lambda(1405)$ resonance. The invariant mass distribution of $\pi\Sigma$ shows a different shape from the nominal one, peaking at 1420 MeV. This is considered as…

Nuclear Theory · Physics 2007-05-23 T. Hyodo , A. Hosaka , M. J. Vicente Vacas , E. Oset

The long-range electromagnetic interaction presents a challenge for numerical computations in QCD + QED. In addition to power-law finite volume effects, the standard lattice gauge theory approach introduces non-locality through removal of…

High Energy Physics - Lattice · Physics 2016-02-17 Jong-Wan Lee , Brian C. Tiburzi

The scattering length and effective range of the piSigma channel are studied in order to characterize the strangeness S=-1 meson-baryon scattering and the Lambda(1405) resonance. We examine various off-shell dependence of the amplitude in…

Nuclear Theory · Physics 2011-09-12 Yoichi Ikeda , Tetsuo Hyodo , Daisuke Jido , Hiroyuki Kamano , Toru Sato , Koichi Yazaki

The $\Lambda(1520)$ resonance is generated dynamically in a unitary coupled channel framework with the $\pi\Sigma^*$ and $K\Xi^*$ channels in s-wave and $\pi\Sigma$ and $\bar K N$ channels in d-wave. The dynamics of this resonance close to…

Nuclear Theory · Physics 2011-02-09 Sourav Sarkar , L. Roca , E. Oset , V. K. Magas , M. J. Vicente Vacas

Spatially non-local matrix elements are useful lattice-QCD observables in a variety of contexts, for example in determining hadron structure. To quote credible estimates of the systematic uncertainties in these calculations, one must…

High Energy Physics - Lattice · Physics 2018-11-06 Raúl A. Briceño , Juan V. Guerrero , Maxwell T. Hansen , Christopher J. Monahan

We test the hypothesis of $K(1460)$ being a hadronic $J^P=0^-$ molecule through nonperturbative $S$-wave $K K\bar K$, $K\pi\pi$, $K\pi\eta$ coupled-channel dynamics in a three-body unitary isobar approach. The scalar two-body…

Nuclear Theory · Physics 2025-11-05 Michael Döring , Kanchan P. Khemchandani , Alberto Martínez Torres

We investigate the finite size effect on the vector meson and the baryon sectors using a subset of the "PACS10" configurations which are generated, keeping the space-time volumes over (10 fm$)^4$ in 2+1 flavor QCD at the physical point.…

High Energy Physics - Lattice · Physics 2019-11-13 K. -I. Ishikawa , N. Ishizuka , Y. Kuramashi , Y. Nakamura , Y. Namekawa , E. Shintani , Y. Taniguchi , N. Ukita , T. Yamazaki , T. Yoshie

We examine the internal structure of the $\Lambda(1670)$ through an analysis of lattice QCD simulations and experimental data within Hamiltonian effective field theory. Two scenarios are presented. The first describes the $\Lambda(1670)$ as…

High Energy Physics - Phenomenology · Physics 2024-03-20 Jiong-Jiong Liu , Zhan-Wei Liu , Kan Chen , Dan Guo , Derek B. Leinweber , Xiang Liu , Anthony W. Thomas

Many newly discovered excited states are interpreted as bound states of hadrons. Can these hadrons also form resonant states? In this paper, we extend the complex scaling method (CSM) to calculate the bound state and resonant state…

High Energy Physics - Phenomenology · Physics 2021-09-15 Zhuo Yu , Mao Song , Jian-You Guo , Yu Zhang , Gang Li

Spin-torque driven ferromagnetic resonance (ST-FMR) is used to study magnetic excitations in Co/Ni synthetic layers confined in nanojunctions. Field swept ST-FMR measurements were conducted with a magnetic field applied perpendicular to the…

Mesoscale and Nanoscale Physics · Physics 2008-02-14 W. Chen , G. de Loubens , J-M. L. Beaujour , A. D. Kent , J. Z. Sun

Persistent tension between low-redshift observations and the Cosmic Microwave Background radiation (CMB), in terms of two fundamental distance scales set by the sound horizon $r_d$ and the Hubble constant $H_0$, suggests new physics beyond…

We present a theoretical study of $\Xi^*(1690)$ resonance in the $\Lambda_c^+ \to \Lambda K^+ \bar{K}^0$ decay, where the weak interaction part proceeds through the Cabibbo-favored process $c \to s + u\bar{d}$. Next, the intermediate two…

High Energy Physics - Phenomenology · Physics 2023-07-19 Si-Wei Liu , Qing-Hua Shen , Ju-Jun Xie

Finite-volume effects in Quantum Chromodynamics (QCD) have been a subject of much theoretical interest for more than two decades. They are in particular important for the analysis and interpretation of QCD simulations on a finite, discrete…

High Energy Physics - Phenomenology · Physics 2017-10-17 Bertram Klein

Three-body calculations of $K\bar{K}N$ system with quantum numbers $I=1/2$, $J^{\pi}=(\frac{1}{2})^{+}$ were performed. Using separable potentials for two-body interactions, we calculated the $\pi\Sigma$ mass spectra for the…

Nuclear Theory · Physics 2021-06-02 S. Marri , M. N. Nasrabadi , S. Z. Kalantari

We consider a possibility to describe the Feshbach resonance in terms of the Boson Fermion (BF) model. Using such model we show that after a gradual disentangling of the boson from fermion subsystem the resonant type scattering between…

Superconductivity · Physics 2009-11-10 T. Domanski

We study finite volume effects within the Polyakov loop Nambu-Jona-Lasinio model for two light and one heavy quarks at vanishing baryon chemical potential and finite temperatures. We include three different Polyakov loop potentials and…

High Energy Physics - Phenomenology · Physics 2018-08-24 A. G. Grunfeld , G. Lugones

Using effective field theory methods, we discuss the extraction of the mass and width of the scalar mesons f0(980) and a0(980) from the finite-volume spectrum in lattice QCD. In particular, it is argued that the nature of these states can…

High Energy Physics - Lattice · Physics 2011-01-27 V. Bernard , M. Lage , U. -G. Meißner , A. Rusetsky

We determine the finite-volume corrections to the spectrum and matrix elements of two-hadron states in a moving frame, i.e. one in which the total momentum of the two-hadrons is non-zero. The analysis is performed entirely within field…

High Energy Physics - Lattice · Physics 2009-10-09 C. h. Kim , C. T. Sachrajda , Stephen R. Sharpe

We study finite volume effects in heavy quark systems in the framework of heavy meson chiral perturbation theory for full, quenched, and partially quenched QCD. A novel feature of this investigation is the role played by the scales Delta…

High Energy Physics - Lattice · Physics 2008-11-26 Daniel Arndt , C. -J. David Lin

We investigate finite volume effects in the pattern of chiral symmetry breaking. To this end we employ a formulation of the Schwinger-Dyson equations on a torus which reproduces results from the corresponding lattice simulations of…

High Energy Physics - Phenomenology · Physics 2007-05-23 C. S. Fischer , M. R. Pennington
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