Zobrazeno 1 - 10
of 473
pro vyhledávání: '"Locher, M."'
Publikováno v:
Eur.Phys.J.C25:353-360,2002
We study pi0pi0 correlations in the exclusive reaction ppbar -> 4pi0 at rest with complete reconstruction of the kinematics for each event. The inclusive distribution shows a dip at small invariant mass of the pion pair while a small enhancement in t
Externí odkaz:
http://arxiv.org/abs/hep-ex/0202042
We expand on prior results on noise supported signal propagation in arrays of coupled bistable elements. We present and compare experimental and numerical results for kink propagation under the influence of local and global fluctuations. As demonstra
Externí odkaz:
http://arxiv.org/abs/nlin/0003048
Publikováno v:
Eur.Phys.J. A7 (2000) 261-269
We evaluate three meson doorway mechanisms for nucleon-antinucleon annihilation at rest for the first time. Detailed results are presented for the final state phi pi0 originating from the 3S1 initial state and for the phi rho channel originating from
Externí odkaz:
http://arxiv.org/abs/hep-ph/9912359
Autor:
Markushin, V. E., Locher, M. P.
Publikováno v:
FrascatiPhys.Ser.15:229-236,1999
The analysis of the poles of the $\pi\pi$ scattering amplitude is shown to favour a dynamical origin of the sigma meson: it is created by a strongly attractive $\pi\pi$ interaction in the $J^{PC}=0^{++}I=0$ channel. In the limit $N_c\to\infty$, the $
Externí odkaz:
http://arxiv.org/abs/hep-ph/9906249
Publikováno v:
Eur.Phys.J.C10:19-25,1999
We apply a forward dispersion relation to the regeneration amplitude for kaon scattering on 12C using all available data. The CPLEAR data at low energies allow the determination of the net contribution from the subthreshold region which turns out to
Externí odkaz:
http://arxiv.org/abs/hep-ex/9905007
Autor:
Markushin, V. E., Locher, M. P.
Publikováno v:
Eur.Phys.J.A1:91-98,1998
The phi pi+ pi- production in p pbar annihilation at rest is strongly enhanced by a two step mechanism with intermediate K Kbar pi pi states. The relative yield of the phi production due to the resonant final state interaction decreases with increasi
Externí odkaz:
http://arxiv.org/abs/hep-ph/9707491
Publikováno v:
Eur.Phys.J.C4:317-326,1998
A coupled channel model is used to study the nature of the f0(980) resonance. It is shown that the existence of two poles close to KKbar threshold, as found in many data fits and confirmed here, can be reconciled with the KKbar molecular origin of th
Externí odkaz:
http://arxiv.org/abs/hep-ph/9705230
We report the calculation of electromagnetic form factors of nucleons within a relativistic three-quark model with Gaussian shape for the nucleon-quark vertex. The allowed region for two adjustable parameters, the range parameter $\Lambda_N$ in the G
Externí odkaz:
http://arxiv.org/abs/hep-ph/9612465