Naslov
Vector and tensor analyzing powers in deuteron-proton breakup at 130 MeV

Autori
Stephan, E. ; Kistryn, St. ; Sworst, R. ; Biegun, A. ; Bodek, K. ; Ciepal, I. ; Deltuva, A. ; Epelbaum, E. ; Fonseca, A. C. ; Golak, J. ; Kalantar-Nayestanaki, N. ; Kamada H. ; Kiš, Mladen ; Klos, B. ; Kozela, A. ; Mahjour-Shafiei, M. ; Micherdzinska, A. ; Nogga, A. ; Skibinski, R. ; Witala, H. ; Wronska, A. ; Zejma, J. ; Zipper, W.

Izvornik
Physical Review C (0556-2813) 82 (2010); 014003-1

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

Ključne riječi
Monte-Carlo calculations; 3-nucleon force; elastic-scattering; nuclear-forces; cross-section; chiral lagrangians; configurations; system; a(y); polarization

Sažetak
High-precision data for vector and tensor analyzing powers for the H-1((d) over right arrow, pp)n reaction at a 130-MeV deuteron beam energy have been measured over a large part of the phase space. Theoretical predictions based on various approaches to describe the three nucleon (3N) system reproduce very well the vector analyzing power data and no three-nucleon force effect is observed for these observables. Tensor analyzing powers are also very well reproduced by calculations in almost the whole studied region, but locally certain discrepancies are observed. For A(xy) such discrepancies usually appear, or are enhanced, when model 3N forces, TM99 or Urbana, are included. Problems of all theoretical approaches with describing A(xx) and A(yy) are limited to very small kinematical regions, usually characterized by the lowest energy of the relative motion of the two protons.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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