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Related papers: Partially quenched study of strange baryon with Nf…

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We compute the mass spectrum for strange/charmed baryons in the partially quenched approach using N_f=2 twisted mass QCD configurations. We investigate two main issues: the size of lattice artefacts using three values of the lattice spacing…

High Energy Physics - Lattice · Physics 2010-12-14 Mauro Papinutto , Jaume Carbonell , Vincent Drach , Constantia Alexandrou

The masses of the low lying baryons are evaluated using a total of ten ensembles of dynamical twisted mass fermion gauge configurations. The simulations are performed using two degenerate flavors of light quarks, and a strange and a charm…

High Energy Physics - Lattice · Physics 2015-06-22 C. Alexandrou , V. Drach , K. Jansen , C. Kallidonis , G. Koutsou

We present results for the light, strange and charm quark masses using $N_f=2+1+1$ twisted mass fermion ensembles at three values of the lattice spacing, including two ensembles simulated with the physical value of the pion mass. The…

We present results on the masses of the low-lying baryons using ten ensembles of gauge configurations with $N_f =2+1+1$ dynamical twisted mass fermions, at three values of the lattice spacing, spanning a pion mass range from about 210 MeV…

High Energy Physics - Lattice · Physics 2014-12-03 C. Alexandrou , V. Drach , K. Hadjiyiannakou , K. Jansen , C. Kallidonis , G. Koutsou

The masses of the low lying baryons are evaluated using two degenerate flavors of twisted mass sea quarks corresponding to pseudo scalar masses in the range of about 270-500 MeV. The strange valence quark mass is tuned to reproduce the mass…

High Energy Physics - Lattice · Physics 2009-12-31 C. Alexandrou , R. Baron , J. Carbonell , V. Drach , P. Guichon , K. Jansen , T. Korzec , O. Pène

The masses of the low-lying strange and charm baryons are evaluated using two degenerate flavors of twisted mass sea quarks for pion masses in the range of about 260 MeV to 450 MeV. The strange and charm valence quark masses are tuned to…

High Energy Physics - Lattice · Physics 2013-05-30 C. Alexandrou , J. Carbonell , D. Christaras , V. Drach , M. Gravina , M. Papinutto

Lattice QCD calculations with background magnetic fields are used to determine the magnetic moments of the octet baryons. Computations are performed at the physical value of the strange quark mass, and two values of the light quark mass,…

High Energy Physics - Lattice · Physics 2017-07-19 Assumpta Parreno , Martin J. Savage , Brian C. Tiburzi , Jonas Wilhelm , Emmanuel Chang , William Detmold , Kostas Orginos

We compute the strangeness content of the baryon octet and decuplet states based on an analysis of recent lattice simulations of the BMW, PACS, LHPC and HSC groups for the pion-mass dependence of the baryon masses. Our results rely on the…

High Energy Physics - Phenomenology · Physics 2015-06-04 A. Semke , M. F. M. Lutz

We present a study of baryon ground states and low lying excitations of non-strange and strange baryons. The results are based on seven gauge field ensembles with two dynamical light Chirally Improved (CI) quarks corresponding to pion…

High Energy Physics - Lattice · Physics 2015-06-12 Georg P. Engel , C. B. Lang , Daniel Mohler , Andreas Schaefer

We present first results on the octet and decuplet strange baryon spectrum with $N_f=2+1+1$ twisted mass quarks. We use an Osterwalder Seiler valence strange quark with a mass tuned to the kaon and compare the results with those obtained in…

High Energy Physics - Lattice · Physics 2010-12-20 Vincent Drach , Karl Jansen , Jaume Carbonell , Mauro Papinutto , Constantia Alexandrou

The mass spectrum of the lowest lying octet baryons is calculated to next-to-next-to-leading order in heavy baryon chiral perturbation theory and partially quenched heavy baryon chiral perturbation theory. We work in the isospin limit and…

High Energy Physics - Lattice · Physics 2009-11-10 Andre Walker-Loud

We investigate the low-lying baryon spectrum using three $N_f$=2+1+1 ensembles simulated with physical values of the quark masses and lattice spacings of 0.080, 0.069, and 0.057 fm. The ensembles are generated using twisted mass…

High Energy Physics - Lattice · Physics 2024-01-10 Constantia Alexandrou , Simone Bacchio , Georgios Christou , Jacob Finkenrath

The axial couplings of the low lying baryons are evaluated using a total of five ensembles of dynamical twisted mass fermion gauge configurations. The simulations are performed using the Iwasaki gauge action and two degenerate flavors of…

High Energy Physics - Lattice · Physics 2016-08-10 C. Alexandrou , K. Hadjiyiannakou , Ch. Kallidonis

The masses of the spin-3/2 baryons are calculated to next-to-next-to-leading order in heavy baryon chiral perturbation theory and partially quenched heavy baryon chiral perturbation theory. The calculation is performed for three light…

High Energy Physics - Lattice · Physics 2009-11-10 Brian C. Tiburzi , Andre Walker-Loud

We review the quark-mass dependence of the baryon octet and decuplet masses as obtained from recent lattice simulations of the BMW, PACS-CS, LHPC, HSC and QCDSF-UKQCD groups. Our discussion relies on the relativistic chiral Lagrangian and…

High Energy Physics - Lattice · Physics 2013-02-05 M. F. M. Lutz , A. Semke

The masses of baryons containing a heavy quark are calculated to next-to-leading order in partially quenched heavy hadron chiral perturbation theory. Calculations are performed for three light flavors in the isospin limit and additionally…

High Energy Physics - Lattice · Physics 2009-11-10 Brian C. Tiburzi

We determine the ground state and first excited state masses of singly and doubly charmed spin 1/2 and 3/2 baryons with positive and negative parity. Configurations with $N_f=2+1$ non-perturbatively improved Wilson-clover fermions were…

High Energy Physics - Lattice · Physics 2015-08-14 Gunnar Bali , Sara Collins , Paula Pérez-Rubio

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

High Energy Physics - Lattice · Physics 2019-08-13 Marc Wagner , Christian Wiese

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

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
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