6533b828fe1ef96bd1288dd6

RESEARCH PRODUCT

Non-perturbative renormalisation of four fermion operators and B0 −B0 bar mixing with Wilson fermions

M. PapinuttoV. LubiczG. MartinelliJ. ReyesD. BecirevicV. Gimenez

subject

PhysicsNuclear and High Energy PhysicsHigh Energy Physics::LatticeLattice (order)FísicaFermionNon-perturbativeAtomic and Molecular Physics and OpticsMathematical physicsPreliminary analysis

description

We present new results for the renormalisation and subtraction constants for the four fermion DeltaF = 2 operators, computed non-perturbatively in the RI-MOM scheme (in the Landau gauge). From our preliminary analysis of the lattice data at beta = 6.45, for the B-0 - B-0,mixing bag-parameter we obtain B-B(RGI) = 1.46(7)(1).

yearjournalcountryeditionlanguage
2003-05-01
10.1016/s0920-5632(03)01641-4http://hdl.handle.net/11573/498407