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Related papers: Baryon spectrum using Nf=2+1+1 ensembles of twiste…

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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 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

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…

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

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 low-lying baryons are evaluated using an ensemble with two degenerate light twisted mass clover-improved quarks with mass tuned to reproduce the physical pion mass. The Iwasaki improved gluonic action is employed. The…

High Energy Physics - Lattice · Physics 2017-10-03 Constantia Alexandrou , Christos Kallidonis

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

We present results on the mass of the baryon octet and decuplet using two flavors of light dynamical twisted mass fermions. The strange quark mass is fixed to its physical value from the kaon sector in a partially quenched set up.…

High Energy Physics - Lattice · Physics 2010-01-21 V. Drach , M. Brinet , J. Carbonell , Z. Liu , C. Alexandrou , T. Korzec , G. Koutsou , R. Baron , P. Guichon , O. Pène , E. Pallante , S. Reker , C. Urbach , K. Jansen

We investigate the charmed baryon mass spectrum using the relativistic heavy quark action on 2+1 flavor PACS-CS configurations previously generated on $32^3 \times 64$ lattice. The dynamical up-down and strange quark masses are tuned to…

High Energy Physics - Lattice · Physics 2013-05-29 Y. Namekawa , S. Aoki , K. -I. Ishikawa , N. Ishizuka , K. Kanaya , Y. Kuramashi , M. Okawa , Y. Taniguchi , A. Ukawa , N. Ukita , T. Yoshié

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 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

We present the results of a calculation of the positive-parity ground-state charmed-baryon spectrum using 2+1+1 flavors of dynamical quarks. The calculation uses a relativistic heavy-quark action for the valence charm quark, clover-Wilson…

High Energy Physics - Lattice · Physics 2013-05-30 Raul A. Briceno , Huey-Wen Lin , Daniel R. Bolton

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

We investigate the charmed baryon mass spectrum using the relativistic heavy quark action on 2+1 flavor PACS-CS configurations previously generated on $32^3 \times 64$ lattice. The dynamical up-down and strange quark masses are set to the…

High Energy Physics - Lattice · Physics 2019-08-14 Y. Namekawa

We present preliminary results of the calculation of the positive-parity ground state charm baryon spectrum using of N_f=2+1+1$ dynamical quarks. The calculation uses a relativistic heavy-quark action for the valence charm quark,…

High Energy Physics - Lattice · Physics 2011-11-07 Raúl A. Briceño , Daniel Bolton , Huey-Wen Lin

We present results of lattice QCD simulations with mass-degenerate up and down and mass-split strange and charm (Nf=2+1+1) dynamical quarks using Wilson twisted mass fermions at maximal twist. The tuning of the strange and charm quark…

We present a lattice computation of the isospin-breaking corrections to pseudoscalar meson masses using the gauge configurations produced by the European Twisted Mass collaboration with $N_f = 2 + 1 + 1$ dynamical quarks at three values of…

High Energy Physics - Lattice · Physics 2017-06-21 D. Giusti , V. Lubicz , G. Martinelli , F. Sanfilippo , S. Simula , N. Tantalo , C. Tarantino

We present results on the mass of the nucleon and the $\Delta$ using two dynamical degenerate twisted mass quarks. The evaluation is performed at four quark masses corresponding to a pion mass in the range of 690-300 MeV on lattices of size…

We calculate the low-lying spectrum of charmed baryons in lattice QCD on the $32^3\times64$, $N_f=2+1$ PACS-CS gauge configurations at the almost physical pion mass of $\sim 156$ MeV/c$^2$. By employing a set of interpolating operators with…

High Energy Physics - Lattice · Physics 2020-09-25 Huseyin Bahtiyar , Kadir Utku Can , Guray Erkol , Philipp Gubler , Makoto Oka , Toru T. Takahashi

We present preliminary results on the light, charmed and bottom baryon spectra using overlap valence quarks on the background of 2+1+1 flavours HISQ gauge configurations of the MILC collaboration. These calculations are performed on three…

High Energy Physics - Lattice · Physics 2018-04-18 Sourav Mondal , M. Padmanath , Nilmani Mathur
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