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Related papers: Static-light meson spectroscopy with optimal disti…

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We present results for the spectrum of light and strange mesons on configurations with two flavors of mass-degenerate Chirally Improved sea quarks. The calculations are performed on seven ensembles of lattice size 16^3x32 at three different…

High Energy Physics - Lattice · Physics 2015-06-03 Georg P. Engel , C. B. Lang , Markus Limmer , Daniel Mohler , Andreas Schaefer

It has been demonstrated that distillation profiles can be employed to build optimized quarkonium interpolators for spectroscopy calculations in lattice QCD. We test their usefulness for heavy-light systems on (3+1)-flavor ensembles with…

We use the method of optimal distillation profiles to compute the low-lying charmonium spectrum in an $N_f = 3+1$ ensemble at the $SU(3)$ light flavor symmetric point ($m_{\pi} \approx 420$ MeV), physical charm quark mass and lattice…

High Energy Physics - Lattice · Physics 2024-01-17 Juan Andrés Urrea-Niño , Jacob Finkenrath , Roman Höllwieser , Francesco Knechtli , Tomasz Korzec , Michael Peardon

We compute the static-light meson spectrum using two-flavor Wilson twisted mass lattice QCD. We have considered five different values for the light quark mass corresponding to 300 MeV < m_PS < 600 MeV. We have extrapolated our results, to…

High Energy Physics - Lattice · Physics 2010-01-21 ETM Collaboration , Karl Jansen , Chris Michael , Andrea Shindler , Marc Wagner

We investigate potentials between pairs of static-light mesons in Nf=2 Lattice QCD, in different spin channels. The question of attraction and repulsion is particularly interesting with respect to the X(3872) charmonium state and charged…

High Energy Physics - Lattice · Physics 2010-11-03 Gunnar Bali , Martin Hetzenegger

We compute the static-light meson spectrum with N_f = 2 flavours of sea quarks using Wilson twisted mass lattice QCD. We consider five different values for the light quark mass corresponding to 300 MeV < m_PS < 600 MeV and we present…

High Energy Physics - Lattice · Physics 2009-02-09 ETM Collaboration , Karl Jansen , Chris Michael , Andrea Shindler , Marc Wagner

We present results of meson and baryon spectroscopy using the Chirally Improved Dirac operator on lattices of size 16**3 x 32 with two mass-degenerate light sea quarks. Three ensembles with pion masses of 322(5), 470(4) and 525(7) MeV and…

High Energy Physics - Lattice · Physics 2015-03-17 Georg P. Engel , C. B. Lang , Markus Limmer , Daniel Mohler , Andreas Schäfer

We present a study using the distillation method to analyze the spectra of nucleon, nucleon-pion, and nucleon-pion-pion states in the positive-parity sector, as well as nucleon and nucleon-pion states in the negative-parity sector. The…

High Energy Physics - Lattice · Physics 2024-12-24 Andreas Hackl , Christoph Lehner

We report results of masses and decay constants of light and charmed pseudo-scalar mesons using lattice QCD with M\"obius domain-wall fermions. Using this formulation we are able to compute pseudo-scalar decay constants through the…

High Energy Physics - Lattice · Physics 2015-12-31 B. Fahy , G. Cossu , S. Hashimoto , T. Kaneko , J. Noaki , M. Tomii

We perform lattice simulations of two flavors QCD using the optimal domain-wall fermion, in which the chiral symmetry is preserved to a good precision ($ m_{res} \sim 0.3 $ MeV) on the $ 16^3 \times 32 $ lattice ($ L \sim 2 $ fm) with…

High Energy Physics - Lattice · Physics 2011-01-14 Yu-Chih Chen , Ting-Wai Chiu , Tian-Shin Guu , Tung-Han Hsieh , Chao-Hsi Huang , Yao-Yuan Mao

We give an update on our ongoing investigations of potentials between pairs of static-light mesons in Nf=2 Lattice QCD, in different spin and isospin channels. The question of attraction and repulsion is particularly interesting with…

High Energy Physics - Lattice · Physics 2011-11-10 Gunnar Bali , Martin Hetzenegger

Results are presented for the low-lying spectrum of D and D_s mesons calculated in lattice QCD using 2+1 flavor Clover-Wilson configurations made available by the PACS-CS collaboration. For the heavy quark, the Fermilab method is employed.…

High Energy Physics - Lattice · Physics 2013-05-29 Daniel Mohler , R. M. Woloshyn

We investigate the continuum limit of the low lying static-light meson spectrum using Wilson twisted mass lattice QCD with N_f = 2 dynamical quark flavours. We consider three values of the lattice spacing a ~ 0.051 fm, 0.064 fm, 0.080 fm…

High Energy Physics - Lattice · Physics 2014-11-20 ETM Collaboration , Chris Michael , Andrea Shindler , Marc Wagner

We study the charmonium spectrum on an ensemble with two heavy dynamical quarks with a mass at half the physical charm quark mass. Operators for different quantum numbers are used in the framework of distillation with different smearing…

High Energy Physics - Lattice · Physics 2021-12-06 Francesco Knechtli , Tomasz Korzec , Mike Peardon , Juan Andrés Urrea Niño

We present results for the low-lying spectrum of D and D_s mesons from a lattice QCD calculation on 2+1 flavor Clover-Wilson configurations generated by the PACS-CS collaboration. In particular S- and P-wave states of charmed and…

High Energy Physics - Lattice · Physics 2011-09-01 Daniel Mohler , R. M. Woloshyn

In 2 + 1 flavour lattice QCD the spectrum of the nucleon is presented for both parities using local meson-baryon type interpolating fields in addition to the standard three-quark nucleon interpolators. The role of local five-quark operators…

High Energy Physics - Lattice · Physics 2015-07-09 Adrian L. Kiratidis , Waseem Kamleh , Derek B. Leinweber , Benjamin J. Owen

We present a new method for the study of heavy-light mesons in the static approximation of lattice QCD which is optimally effective in isolating ground and excited states. With ``MOST'' (Maximal Operator Smearing Technique), the heavy quark…

High Energy Physics - Lattice · Physics 2008-11-26 Terrence Draper , Craig McNeile

Results for the excited meson and baryon spectrum with two flavors of Chirally Improved sea quarks are presented. We simulate several ensembles with pion masses ranging from 250 to 600 MeV and extrapolate to the physical pion mass. Strange…

High Energy Physics - Lattice · Physics 2013-12-03 Georg P. Engel , C. B. Lang , Daniel Mohler , Andreas Schafer

We compute the static-light baryon spectrum by means of Wilson twisted mass lattice QCD using N_f = 2 flavors of sea quarks. As light u/d valence quarks we consider quarks, which have the same mass as the sea quarks with corresponding pion…

High Energy Physics - Lattice · Physics 2011-09-21 Marc Wagner , Christian Wiese

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…

High Energy Physics - Lattice · Physics 2008-11-26 Justin Foley , Alan O'Cais , Sinead M. Ryan , Mike Peardon
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