Zobrazeno 1 - 10
of 451
pro vyhledávání: '"Bennhold C"'
Publikováno v:
Phys.Rev.C74:044004,2006
The photoproduction of K0 on the deuteron has been investigated with the inclusion of YN and KN final-state interaction (FSI), as well as the pion-mediated process gamma d --> pi NN --> KYN. The YN rescattering effects for the inclusive cross section
Externí odkaz:
http://arxiv.org/abs/nucl-th/0608053
Publikováno v:
Phys.Rev. C74 (2006) 034002
Single and double polarization observables for kaon photoproduction on the deuteron are studied theoretically with modern hyperon-nucleon forces. The kinematical region of the kaon scattered forward with large momentum is thoroughly investigated wher
Externí odkaz:
http://arxiv.org/abs/nucl-th/0608052
Autor:
Lawall, R., Barth, J., Bennhold, C., Glander, K. -H., Goers, S., Hannappel, J., Joepen, N., Klein, F., Klempt, E., Mart, T., Menze, D., Ostrick, M., Paul, E., Schulday, I., Schwille, W. J., Wieland, F. W., Wu, C.
Publikováno v:
Eur.Phys.J. A24 (2005) 275-286
The reaction gamma p --> K0 Sigma+ was measured in the photon energy range from threshold up to 2.6 GeV with the SAPHIR detector at the electron stretcher facility, ELSA, in Bonn. Results are presented on the reaction cross section and the polarizati
Externí odkaz:
http://arxiv.org/abs/nucl-ex/0504014
Autor:
Ramos, A., Bennhold, C., Hosaka, A., Hyodo, T., Jido, D., Meissner, U. G., Oller, J. A., Oset, E., Vicente-Vacas, M. J.
Publikováno v:
Proceedings of the Workshop on the Physics of excited nucleons (NSTAR2004), Eds. J.P. Bocquet, V. Kuznetsov and D. Rebreyend, (World-Scientific, Singapore, 2004) pp 228-238
We report on the latests developments in the field of baryonic resonances generated from the meson-baryon interaction in coupled channels using a chiral unitary approach. The collection of resonances found in different strangeness and isospin sectors
Externí odkaz:
http://arxiv.org/abs/nucl-th/0502053
Autor:
Mart, T., Bennhold, C.
Kaon photoproduction on the nucleon has been investigated in the isobar (Feynman) and Regge frameworks. Two possible combinations of the theories are discussed. Results are compared with present experimental data.
Comment: 8 pages, 5 figures, in
Comment: 8 pages, 5 figures, in
Externí odkaz:
http://arxiv.org/abs/nucl-th/0412097
Photoproduction of the pentaquark particle Theta^+ on the nucleon has been studied by using an isobar and a Regge model. Using the isobar model, total cross sections around 100 nb for the gamma n --> K- Theta+ channel and 400 nb for the gamma p --> {
Externí odkaz:
http://arxiv.org/abs/nucl-th/0412095
Kaon photoproduction on the deuteron is investigated by considering YN and KN rescattering and the two-step process gamma d --> pi NN --> KYN. A strong enhancement in the total cross section is found from the two-step process. YN rescattering has rem
Externí odkaz:
http://arxiv.org/abs/nucl-th/0411036
New kaon photoproduction data on a proton, gamma + p --> K+ + Lambda, are analyzed using a multipole approach. The background terms are given in terms of gauge invariant, crossing symmetric, Born diagrams with hadronic form factors, while the resonan
Externí odkaz:
http://arxiv.org/abs/nucl-th/0411035
Autor:
Mathur, N., Lee, F. X., Alexandru, A., Bennhold, C., Chen, Y., Dong, S. J., Draper, T., Horvath, I., Liu, K. F., Tamhankar, S., Zhang, J. B.
Publikováno v:
Phys.Rev.D70:074508,2004
We present a quenched lattice QCD calculation of spin-1/2 five-quark states with $uudd\bar{s}$ quark content for both positive and negative parities. We do not observe any bound pentaquark state in these channels for either I = 0 or I =1. The states
Externí odkaz:
http://arxiv.org/abs/hep-ph/0406196
Autor:
Shafi, A., Prakhov, S., Strakovsky, I. I., Briscoe, W. J., Nefkens, B. M. K., Allgower, C. E., Arndt, R. A., Bekrenev, V., Bennhold, C., Clajus, M., Comfort, J. R., Craig, K., Grosnick, D., Isenhower, D., Knecht, N., Koetke, D. D., Kulbardis, A., Kozlenko, N., Kruglov, S., Lolos, G., Lopatin, I., Manley, D. M., Manweiler, R., Marusic, A., McDonald, S., Olmsted, J., Papandreou, Z., Peaslee, D., Phaisangittisaku, N., Price, J. W., Ramirez, A. F., Sadler, M., Spinka, H., Stanislaus, T. D. S., Starostin, A., Staudenmaier, H. M., Supek, I., Tippens, W. B., Workman, R. L.
Publikováno v:
Phys.Rev.C70:035204,2004
Differential cross sections for the process pi^- p -> gamma n have been measured at Brookhaven National Laboratory's Alternating Gradient Synchrotron with the Crystal Ball multiphoton spectrometer. Measurements were made at 18 pion momenta from 238 t
Externí odkaz:
http://arxiv.org/abs/nucl-ex/0405026