The Trojan Horse Method in Nuclear Astrophysics
Transkript
ČESKÉ VYSOKÉ UČENÍ TECHNICKÉ V PRAZE ÚSTAV TECHNICKÉ A EXPERIMENTÁLNÍ FYZIKY 128 00 Praha 2 ‐ Albertov, Horská 3a/22 tel.: 22435‐9391, 9290; fax: 22435‐9392 POZVÁNKA na 244. seminář ÚTEF ČVUT pod záštitou Československé sekce NPSS IEEE The Trojan Horse Method in Nuclear Astrophysics Prof. Claudio Spitaleri Dipartimento di Fisica ed Astronomia, Catania University and INFN‐Laboratori Nazionali del Sud, Catania, Italy Abstract: Because of the Coulomb barrier, reaction cross sections in astrophysics cannot be accessed directly at the relavant energies, unless very favorable conditions are met. Theoretical extrapolations of available data are then needed to derive the astrophysical S(0)‐factor. Various indirect tecniques have been used in order to obtain additional information on the parameters entering these extrapolations. The Trojan Horse Method is an indirect method which might help to bypass some of problems typically ncountered in direct measurements, namely the presence of the Coulomb barrier and electron screening between interacting nuclei. Seminář se bude konat v úterý 6. března 2012 ve 14 hodin v zasedací místnosti ÚTEF ČVUT, Praha 2 ‐ Albertov, Horská 3a/22 Ing. František Krejčí tajemník semináře Ing. Stanislav Pospíšil, DrSc. ředitel NUCLEAR & PLASMA SCIENCES SOCIETY CHAPTER IEEE Czechoslovakia Section http://www.ieee.cz/en/nps Doc. Ing. Carlos Granja, Ph.D. předseda NPSS, ČS IEEE
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