Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Leśniak, Leonard"'
Autor:
Lesniak, Leonard, Silarski, Michal
Recent theoretical studies of the e+ e- --> K + K- gamma process are described. Three main reaction mechanisms are considered: the initial state radiation, the final state radiation and the strong interaction between the outgoing K+ K- mesons. The K+
Externí odkaz:
http://arxiv.org/abs/1702.00607
Autor:
Lesniak, Leonard, Silarski, Michal
We present studies of the e+ e- --> K+ K- gamma reaction for the e+e- center-of-mass energies close to the phi(1020) meson mass. Different mechanisms leading to the final state are considered. The strong interaction amplitudes of the K+K- pairs in th
Externí odkaz:
http://arxiv.org/abs/1610.01514
Autor:
Lesniak, Leonard, Zenczykowski, Piotr
Large $CP$-violating asymmetry effects in the B+- --> K+ K- K decays have been predicted in the QCD factorization model. The model includes strong K+ K- final-state long-distance interactions in the S-, P-, and also (in the recent analysis) D- wave t
Externí odkaz:
http://arxiv.org/abs/1509.06979
Autor:
Lesniak, Leonard
Recent studies of hadronic -meson decays are reported. Some experimental searches of CP-symmetry violation using model independent methods are presented. An importance of unitarity constraints in construction of phenomenological models of the D-meson
Externí odkaz:
http://arxiv.org/abs/1411.1665
A quasi two-body QCD factorization is used to study the D0 --> K0S pi+ pi decays. The presently available high-statistics Dalitz plot data of this process measured by the Belle and BABAR Collaborations are analyzed together with the tau- --> K0S pi-
Externí odkaz:
http://arxiv.org/abs/1410.5673
Autor:
Lesniak, Leonard, Zenczykowski, Piotr
Publikováno v:
Physics Letters B737(2014)201
A large CP asymmetry predicted recently in the framework of the QCD factorization model for the B+- --> K+- K+ K- decays in the range of the K+ K- invariant masses above the phi(1020) resonance has been confirmed by the LHCb Collaboration. We discuss
Externí odkaz:
http://arxiv.org/abs/1309.1689
Publikováno v:
Phys.Lett.B699:102-107,2011
Charged B decays to three charged kaons are analysed in the framework of the QCD factorization approach. The strong final state K+K-interactions are described using the kaon scalar and vector form factors. The scalar non-strange and strange form fact
Externí odkaz:
http://arxiv.org/abs/1101.4126
Publikováno v:
PoS HEP2005 (2005) 249
Charged and neutral B decays into the pi+pi-K, K+K-K and K0S K0S K0S systems have been studied. The pi+pi- and K+K- final state interactions in the S-wave isoscalar state are treated in an unitary way. The long-distance contributions called charming
Externí odkaz:
http://arxiv.org/abs/hep-ph/0511120
Publikováno v:
Int.J.Mod.Phys. A20 (2005) 693-695
The scalar-isoscalar, scalar-isotensor and vector-isovector pi-pi amplitudes are fitted simultaneously to experimental data and to Roy's equations. The resulting amplitudes are compared with those fitted only to experimental data. No additional const
Externí odkaz:
http://arxiv.org/abs/hep-ph/0407338
Autor:
Furman, Agnieszka, Lesniak, Leonard
Publikováno v:
Int.J.Mod.Phys. A20 (2005) 612-614
We have analysed properties of two resonances a0(980) and a0(1450) using the pion-eta and K anti-K coupled channel model. Although the forces in the scalar-isovector K anti-K channel are attractive the a0(980) resonance cannot be interpreted as a kao
Externí odkaz:
http://arxiv.org/abs/hep-ph/0407175