Zobrazeno 1 - 10
of 194
pro vyhledávání: '"Ślusarczyk M"'
Autor:
Misiak, M., Asatrian, H. M., Bieri, K., Czakon, M., Czarnecki, A., Ewerth, T., Ferroglia, A., Gambino, P., Gorbahn, M., Greub, C., Haisch, U., Hovhannisyan, A., Hurth, T., Mitov, A., Poghosyan, V., Slusarczyk, M., Steinhauser, M.
Publikováno v:
Phys.Rev.Lett.98:022002,2007
Combining our results for various O(alpha_s^2) corrections to the weak radiative B-meson decay, we are able to present the first estimate of the branching ratio at the next-to-next-to-leading order in QCD. We find BR(B -> X_s gamma) = (3.15 +_ 0.23)
Externí odkaz:
http://arxiv.org/abs/hep-ph/0609232
Publikováno v:
Phys.Rev.Lett. 96 (2006) 171803
A class of previously unknown strong-interaction corrections is found to enhance the rate of non-leptonic decays of the b quark by 5-8 percent. This effect decreases the predicted fraction of semi-leptonic decays and brings it into fair agreement wit
Externí odkaz:
http://arxiv.org/abs/hep-ph/0511004
Publikováno v:
Phys.Rev.D72:033014,2005
The flavor-changing electromagnetic dipole operator O_7 gives the dominant contribution to the B -> Xs gamma decay rate. We calculate two-loop QCD corrections to its matrix element together with the corresponding bremsstrahlung contributions. The opt
Externí odkaz:
http://arxiv.org/abs/hep-ph/0506055
Publikováno v:
Phys.Rev.D71:054004,2005; Erratum-ibid.D79:019901,2009
We present technical aspects of next-to-next-to-leading order calculations for heavy-to-light decays such as top quark decay, semileptonic b quark decay into a u quark, muon decay, and radiative decays like b -> s gamma. Algebraic reduction of integr
Externí odkaz:
http://arxiv.org/abs/hep-ph/0503039
Autor:
Wereszczynski, A., Slusarczyk, M.
Publikováno v:
Eur.Phys.J. C39 (2005) 185-193
Lattice motivated triplet color scalar field theory is analyzed. We consider non-minimal as well as covariant derivative coupling with SU(2) gauge fields. Field configurations generated by external electric sources are presented. Moreover non-Abelian
Externí odkaz:
http://arxiv.org/abs/hep-ph/0405148
Autor:
Wereszczynski, A., Slusarczyk, M.
Publikováno v:
Eur.Phys.J.C30:537-545,2003
SU(2) Yang-Mills theory coupled in a non-minimal way to two scalar fields is discussed. For the massless scalar fields a family of finite energy solutions generated by an external, static electric charge is found. Additionally, there is a single solu
Externí odkaz:
http://arxiv.org/abs/hep-ph/0307213
Autor:
Slusarczyk, M., Wereszczynski, A.
Publikováno v:
Eur.Phys.J.C28:151-154,2003
Generalization of QCD motivated classical SU(2) Yang--Mills theory coupled to the scalar field is discussed. The massive scalar field, corresponding the scalar glueball, provides a confining potential for static, point-like, external sources. In case
Externí odkaz:
http://arxiv.org/abs/hep-ph/0302005
Autor:
Slusarczyk, M., Wereszczynski, A.
Publikováno v:
Acta Phys.Polon. B34 (2003) 2623-2630
The (2+1) dimensional non-linear electrodynamics, the so called Pagels--Tomboulis electrodynamics, with the Chern--Simons term is considered. We obtain "generalized self--dual equation" and find the corresponding generalized massive Chern--Simons Lag
Externí odkaz:
http://arxiv.org/abs/hep-th/0204104
Autor:
Slusarczyk, M., Wereszczynski, A.
Publikováno v:
Acta Phys.Polon. B33 (2002) 655-664
We show that in the dual version of the generalized Dick model monopole-anti-monopole pairs have finite energy. It is possible to use the potential between monopole and anti-monopole to find the mass spectrum of the glueballs. The results are discuss
Externí odkaz:
http://arxiv.org/abs/hep-ph/0201116
Autor:
Slusarczyk, M., Wereszczynski, A.
Publikováno v:
Eur.Phys.J.C23:145,2002
A generalized Dick model with a potential term is discussed. The solution originating from a static, pointlike, color source is found to have a confining part. The comparison with a wide spectrum of phenomenological quark-antiquark potentials is pres
Externí odkaz:
http://arxiv.org/abs/hep-ph/0111162