Naslov
Systematic investigation of the elastic proton-deuteron differential cross section at intermediate energies

Autori
Ermisch, K. ; Amir-Ahmadi, H.R. ; Berg, A.M. van den ; Castelijns, R. ; Davids, B. ; Epelbaum, E. ; Garderen, E. van ; Glockle, W. ; Golak, J. ; Harakeh, M.N. ; Hunyadi, M. ; Huu, M.A. de ; Kalantar-Nayestanaki, N. ; Kamada, H. ; Kiš, Mladen ; Mahjour-Shafiei, M. ; Nogga, A. ; Skibinski, R. ; Witala, H. ; Wortche, H.J.

Izvornik
Physical review. C, Nuclear physics (0556-2813) 68 (2003), 5;

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
effective-field theory; 3-nucleon force; scattering

Sažetak
To investigate the importance of three-nucleon forces (3NF) systematically over a broad range of intermediate energies, the differential cross sections of elastic proton-deuteron scattering have been measured at proton bombarding energies of 108, 120, 135, 150, 170, and 190 MeV at c.m. angles between 30degrees and 170 degrees . Comparisons with Faddeev calculations show unambiguously the shortcomings of calculations employing only two-body forces and the necessity of including 3NF. They also show the limitations of the latest few-nucleon calculations at backward angles, especially at higher beam energies. Some of these discrepancies could be partially due to relativistic effects. Data at lowest energy are also compared with a recent calculation based on chiPT.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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