Zobrazeno 1 - 10
of 156
pro vyhledávání: '"Metsch B"'
Publikováno v:
EPJ Web of Conferences, Vol 3, p 02004 (2010)
The possibility to control short-ranged interactions of cold gases in optical traps by Feshbachresonances makes these systems ideal candidates to study universal scaling properties and Efimov physics. The spectrum of particles in a trap, idealised b
Externí odkaz:
https://doaj.org/article/664b510a1ec84ce5a652e5689c31f7a8
Autor:
Sokhoyan, V., Gutz, E., Crede, V., van Pee, H., Anisovich, A. V., Bacelar, J. C. S., Bantes, B., Bartholomy, O., Bayadilov, D., Beck, R., Beloglazov, Y. A., Castelijns, R., Dutz, H., Elsner, D., Ewald, R., Frommberger, F., Fuchs, M., Funke, Ch., Gregor, R., Gridnev, A. B., Hillert, W., Hoffmeister, Ph., Horn, I., Jaegle, I., Junkersfeld, J., Kalinowsky, H., Kammer, S., Kleber, V., Klein, Frank, Klein, Friedrich, Klempt, E., Kotulla, M., Krusche, B., Lang, M., Löhner, H., Lopatin, I. V., Lugert, S., Mertens, T., Messchendorp, J. G., Metag, V., Metsch, B., Nanova, M., Nikonov, V. A., Novinsky, D., Novotny, R., Ostrick, M., Pant, L., Pfeiffer, M., Piontek, D., Roy, A., Sarantsev, A. V., Schmidt, Ch., Schmieden, H., Seifen, T., Shende, S., Süle, A., Sumachev, V. V., Szczepanek, T., Thiel, A., Thoma, U., Trnka, D., Varma, R., Walther, D., Wendel, Ch., Wilson, A.
The photoproduction of 2$\pi^0$ mesons off protons was studied with the Crystal Barrel/TAPS experiment at the electron accelerator ELSA in Bonn. The energy of photons produced in a radiator was tagged in the energy range from 600\,MeV to 2.5\,GeV. Di
Externí odkaz:
http://arxiv.org/abs/1507.02488
Mixing of the low-1/2^{-}$ and $3/2^{-}$ is investigated, employing an instanton-induced quark-antiquark pair creation model, which precludes transitions between $s^{3}$ and $s^{4}\bar{s}$ configurations. Models with hyperfine interactions between qu
Externí odkaz:
http://arxiv.org/abs/1304.6046
Publikováno v:
J.Phys. G40 (2013) 055004
We investigate few-boson systems with resonant interactions in a narrow harmonic trap within an effective theory framework. The size of the model space is identified with the effective theory cutoff. In the universal regime, the interactions of the b
Externí odkaz:
http://arxiv.org/abs/1210.8373
Publikováno v:
Comptes Rendus Physique 12:59-70,2011
Few-body systems with resonant short-range interactions display universal properties that do not depend on the details of their structure or their interactions at short distances. In the three-body system, these properties include the existence of a
Externí odkaz:
http://arxiv.org/abs/1008.0551
The isoscalar twist-two generalized parton distributions (GPDs) of the pion and the kaon are calculated in a Poincare covariant Bethe-Salpeter constituent quark model. Results are presented for several values of the parameters xi and t. The results s
Externí odkaz:
http://arxiv.org/abs/0808.0429
Autor:
Van Cauteren, T., Corthals, T., Janssen, S., Ryckebusch, J., Merten, D., Metsch, B., Petry, H. -R.
The relativistically covariant constituent quark model developed by the Bonn group is used to compute the EM form factors of strange baryons. We present form-factor results for the ground-state and some excited hyperons. The computed magnetic moments
Externí odkaz:
http://arxiv.org/abs/nucl-th/0407017
Autor:
Van Cauteren, T., Merten, D., Corthals, T., Janssen, S., Metsch, B., Petry, H. -R., Ryckebusch, J.
Publikováno v:
Eur.Phys.J. A20 (2004) 283-291
Predictions for the electromagnetic form factors of the Lambda$, Sigma and Xi hyperons are presented. The numerical calculations are performed within the framework of the fully relativistic constituent-quark model developed by the Bonn group. The com
Externí odkaz:
http://arxiv.org/abs/nucl-th/0310058
Publikováno v:
Phys.Rev. D65 (2002) 094511
The glueball spectrum within the Hamiltonian formulation of lattice gauge theory (without fermions) is calculated for the gauge group SU(2) and for two spatial dimensions. The Hilbert space of gauge-invariant functions of the gauge field is generated
Externí odkaz:
http://arxiv.org/abs/hep-lat/0112015
Autor:
Metsch, B. C., Petry, H. R.
Publikováno v:
Acta Phys.Polon.B27:3307-3320,1996
We present the results of a covariant constituent quark model, based on the Bethe-Salpeter equation, where confinement is implemented by a string like linear potential explaining the Regge trajectories. An instanton induced quark force explains not o
Externí odkaz:
http://arxiv.org/abs/hep-ph/9609308