CERN Accelerating science

Article
Report number	arXiv:0710.2862 ; CERN-PH-TH-2007-178 ; FTUAM-07-14 ; IFT-UAM-CSIC-07-45 ; CERN-PH-TH-2007-178 ; FTUAM-07-14 ; IFT-UAM-CSIC-07-45
Title	Non-perturbative renormalisation of four-fermion operators in N(f) = 2 QCD
Related title	Non-perturbative renormalisation of four-fermion operators in $N_f=2$ QCD
Author(s)	Dimopoulos, Petros (INFN, Rome2 ; Rome U., Tor Vergata) ; Herdoiza, Gregorio (INFN, Rome2 ; Rome U., Tor Vergata) ; Vladikas, Anastassios (INFN, Rome2 ; Rome U., Tor Vergata) ; Palombi, Filippo (CERN) ; Papinutto, Mauro (CERN) ; Pena, Carlos (Madrid, Autonoma U. ; Madrid, IFT) ; Wittig, Hartmut (Mainz U., Inst. Kernphys.)
Publication	2007
Imprint	16 Oct 2007
Number of pages	7
In:	PoS LATTICE 2007 (2007) pp.368
In:	25th International Symposium on Lattice Field Theory, Regensburg, Germany, 30 Jul - 4 Aug 2007, pp.368
Subject category	Particle Physics - Lattice
Abstract	We present results for the non-perturbative renormalisation of four-fermion operators with two flavours of dynamical quarks. We consider both fully relativistic left current-left current operators, and a full basis for $\Delta B=2$ operators with static heavy quarks. The renormalisation group running of the operators to high energy scales is computed in the continuum limit for a family of Schroedinger Functional renormalisation schemes, via standard finite size scaling techniques. The total renormalisation factors relating renormalisation group invariant to bare operators are computed for a choice of lattice regularisations.
Copyright/License	CC-BY-NC-SA-3.0

Corresponding record in: Inspire