Published December 2017 | Version v1
Report Open

Simulation of an ensemble of Nf=2+1+1 twisted mass clover-improved fermions at physical quark masses

Creators

  • 1. The Cyprus Institute, Nicosia (Cyprus). Computation-based Science and Technology Research Center
  • 2. Cyprus Univ., Nicosia (Cyprus). Dept. of Physics
  • 3. Wuppertal Univ. (Germany)
  • 4. Centro Fermi - Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Rome (Italy)
  • 5. INFN, Sezione di Roma 2 (Italy)
  • 6. Roma ''Tor Vergata'' Univ. (Italy). Dipt. di Fisica
  • 7. Deutsches Elektronen-Synchrotron (DESY), Zeuthen (Germany). John von Neumann-Inst. fuer Computing NIC

Description

We present a general strategy aimed at generating Nf = 2+1+1 configurations with quarks at their physical mass using maximally twisted mass fermions to ensure automatic O(a) improvement, in the presence of a clover term tuned to reduce the charged to neutral pion mass difference. The target system, for the moment, is a lattice of size 643 x 128 with a lattice spacing a ∝ 0.08 fm. We show preliminary results on the pion and kaon mass and decay constants.

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Additional details

Publishing Information

Imprint Pagination
8 p.
ISSN
0418-9833
Report number
DESY--17-165

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
49071683
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ALGORITHMS; COMPUTERIZED SIMULATION; COUPLING CONSTANTS; D MESONS; EFFECTIVE MASS; FLAVOR MODEL; KAONS; LATTICE FIELD THEORY; LATTICE PARAMETERS; LEPTONIC DECAY; MASS DIFFERENCE; MONTE CARLO METHOD; PIONS NEUTRAL; QUANTUM CHROMODYNAMICS; QUARKS; REST MASS
Descriptors DEC
BOSONS; CALCULATION METHODS; CHARM PARTICLES; CHARMED MESONS; COMPOSITE MODELS; CONSTRUCTIVE FIELD THEORY; DECAY; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; FUNDAMENTAL INTERACTIONS; HADRONS; INTERACTIONS; MASS; MATHEMATICAL LOGIC; MATHEMATICAL MODELS; MESONS; PARTICLE DECAY; PARTICLE MODELS; PARTICLE PROPERTIES; PIONS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; QUARK MODEL; SIMULATION; STRANGE MESONS; STRANGE PARTICLES; WEAK INTERACTIONS; WEAK PARTICLE DECAY