Zobrazeno 1 - 10
of 702
pro vyhledávání: '"Lehr J"'
Publikováno v:
In Ultramicroscopy October 2022 240
Publikováno v:
Eur.Phys.J. A22 (2004) 347-351
Recent experimental results for meson photoproduction from nuclei obtained with TAPS at MAMI are analyzed in view of the suppression of the second nucleon resonance region in total photoabsorption. The cross sections can be split into a component fro
Externí odkaz:
http://arxiv.org/abs/nucl-ex/0411009
Autor:
Krusche, B., Lehr, J., Ahrens, J., Annand, J. R. M., Beck, R., Bloch, F., Fog, L. S., Hornidge, D., Janssen, S., Kotulla, M., McGeorge, J. C., MacGregor, I. J. D., Messchendorp, J., Metag, V., Mosel, U., Novotny, R., Owens, R. O., Pfeiffer, M., Sanderson, R., Schadmand, S., Watts, D. P.
Publikováno v:
Eur.Phys.J. A22 (2004) 277-291
Photoproduction of neutral pions from nuclei (carbon, calcium, niobium, lead) has been studied for incident photon energies from 200 MeV to 800 MeV with the TAPS detector using the Glasgow photon tagging spectrometer at the Mainz MAMI accelerator. Da
Externí odkaz:
http://arxiv.org/abs/nucl-ex/0406002
Publikováno v:
Prog.Part.Nucl.Phys. 53 (2004) 25-44
We first briefly review the theoretical basis for calculations of changes of hadronic properties in dense nuclear matter. These changes have usually been investigated by means of relativistic heavy-ion reactions. Here we discuss that observable conse
Externí odkaz:
http://arxiv.org/abs/nucl-th/0312093
Publikováno v:
Phys.Rev. C69 (2004) 024603
We study the influence of the nucleon spectral function on eta photo- and electroproduction on nuclei. Besides kinematical effects due to groundstate correlations, also a modification of the S11(1535) decay width is taken into account, which is cause
Externí odkaz:
http://arxiv.org/abs/nucl-th/0309084
Publikováno v:
Phys.Rev. C68 (2003) 044603
We investigate eta electroproduction on nuclei for Q^2=2.4 and 3.6 GeV^2 in the framework of a coupled-channel BUU transport model. We analyze the importance of final state interactions and side feeding and compare with findings drawn from eta photop
Externí odkaz:
http://arxiv.org/abs/nucl-th/0307009
Publikováno v:
Phys.Rev. C68 (2003) 044601
We investigate the influence of possible in-medium modifications of the S11(1535) in eta photoproduction in nuclei. Besides Fermi motion, Pauli blocking and binding effects also collisional broadening is accounted for. The in-medium width is obtained
Externí odkaz:
http://arxiv.org/abs/nucl-th/0306024
Publikováno v:
Phys.Rev. C67 (2003) 024605
We investigate the consequences of possible medium modifications of the phi meson at finite nuclear matter density on the K+K- mass distribution in photonuclear reactions. The inclusive cross sections for K+K- pair production are calculated within a
Externí odkaz:
http://arxiv.org/abs/nucl-th/0210079
Publikováno v:
Nucl.Phys. A699 (2002) 324-327
We discuss several particle production reactions on nuclei within a BUU transport model. After a short presentation of the model we show our results for the transparency ratio for the nucleon knock-out reaction in different nuclei. The influence of t
Externí odkaz:
http://arxiv.org/abs/nucl-th/0108018