Naslov
Vector and Tensor Analyzing Powers in Deuteron–Proton Breakup

Autori
Stephan, E. ; Kistryn, St. ; Kalantar-Nayestanaki, N. ; Biegun, A. ; Bodek, K. ; Ciepał, I. ; Deltuva, A. ; Eslami-Kalantari, M. ; Fonseca, A.C. ; Gašparić, Igor ; et al.

Izvornik
Few-body systems (0177-7963) 50 (2011), 1/4; 283-285

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

Ključne riječi
few-body systems; breakup reaction; polarized deuterons; vector analyzing power; no three-nucleon force effects observed

Sažetak
High precision data for vector and tensor analyzing powers of the 1H(d pp)n breakup reaction at 130 and 100 MeV deuteron beam energies have been measured in a large fraction of the phase space. They are compared to the theoretical predictions based on various approaches to describe the three nucleon (3N) system dynamics. Theoretical predictions describe very well the vector analyzing power data, with no need to include any three-nucleon force effects for these observables. Tensor analyzing powers can be also very well reproduced by calculations in most of the studied region, but locally certain discrepancies are observed. At 130 MeV for A xy such discrepancies usually appear, or are enhanced, when model 3N forces are included. Predicted effects of 3NFs are much lower at 100 MeV and at this energy equally good consistency between the data and the calculations is obtained with or without 3NFs.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

Napomena
Rad je prezentiran na skupu 21st European Conference on Few-Body Problems in Physics, održanom 2010.g., Salamanca.

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