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361
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362“…Domain-wall fermions preserve chiral symmetry up to terms that decrease exponentially when the lattice size in the fifth dimension is taken to infinity. …”
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363“…Exact results for \Delta r and the W mass prediction including O(\alpha^2) corrections with fermion loops are presented and compared with previous results of a next-to-leading order expansion in the top-quark mass.…”
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364
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365
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366por Garcia, David“…Higgs Yukawa couplings to down-type fermions receive, in the MSSM, supersymmetric quantum corrections that can be of order 1 for large values of tan\beta, provided \mu \sim MSUSY. …”
Publicado 2001
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367“…In any low energy effective supergravity theory general formulae exist which allow one to discuss fermion masses, the scalar potential and breaking of symmetries in a model independent set up. …”
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368por Riemann, Sabine“…Preliminary results of measurements of fermion-pair production at LEP2 are used to derive limits on new physics phenomena. …”
Publicado 2001
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369por Cooke, O“…The ALEPH, DELPHI and OPAL collaborations have measured the rates and angular distributions of heavy-flavour quark production in two- fermion processes at LEP 2. These measurements are in good agreement with the standard model and therefore are used to place limits on contact interactions and leptoquark production. (4 refs).…”
Publicado 1999
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370por Abreu, P, Contri, R, Lipniacka, A, Cieslik, K, Palka, H, Witek, M, Bambade, P, Borisov, G, Pol, M E, Begalli, M, Mundim, L M, Phillips, H T, Baroncelli, A, Cannelli, V, Graziani, E, Passeri, A, Pieri, L, Ballestrero, AEnlace del recurso
Publicado 2001
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371por Abreu, P, Behrmann, A, Boyko, I, Checchia, P, Della Ricca, G, Gouz, I, Holt, J, Nikolenko, M, Olshevskii, A G, Paganoni, M, Reid, D, Renton, P B, Morton, G, Myklebust, T, Wilkinson, G R, Winter, M, Zhuravlov, VEnlace del recurso
Publicado 2001
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372“…We show how it is possible to give a precise and unambiguous implementation of the Witten--Veneziano formula for the eta' mass on the lattice, which looks like the formal continuum one, if the expression of the topological charge density operator, suggested by fermions obeying the Ginsparg--Wilson relation, is employed. …”
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373por Trigger, I“…Searches for scalar partners of fermions, predicted by supersymmetric theories, are performed using a data sample of about 520 pb/sup -1/ taken at center-of-mass energies in the range 183-209 GeV. …”
Publicado 2001
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374“…In order to improve simulations with domain wall fermions (DWFs), it has been suggested to project out a number of low-lying eigenvalues of the 4-dimensional Dirac operator that generates the transfer matrix of DWF. …”
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375“…Our calculations are done using Wilson fermions and the parity-odd components of the operators. …”
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376
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377“…A numerical analysis of the importance of the zero-mode solutions is presented for four-fermion production processes.…”
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378“…It has been suggested to project out a number of low-lying eigenvalues of the four-dimensional Wilson--Dirac operator that generates the transfer matrix of domain-wall fermions in order to improve simulations with domain-wall fermions. …”
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379
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380