Izlaganje sa skupa
Preliminary differential cross sections of the charge-exchange reaction
Darko Makterović (FOR THE CRYSTAL BALL COLLABORATION)
; Ruđer Bošković Institute, HR-10002 Zagreb, Croatia
Ivan Supek
; Ruđer Bošković Institute, HR-10002 Zagreb, Croatia
Sažetak
The Crystal Ball Collaboration measured differential cross sections for pion-nucleon charge-exchange reaction at seven different pion momenta in the momentum region between 105 MeV/c and 180 MeV/c. When analyzed, these data will represent the highest-precision differential cross sections in this energy region. They will be essential for providing the necessary constrains on partial-wave analysis so that pion-nucleon sigma term can be extracted more reliably, and also provide a determination of the mass difference of the up and down quarks. Preliminary results for these differential cross sections are presented.
Ključne riječi
differential cross sections for pion-nucleon charge-exchange; sigma term; quarks
Hrčak ID:
305715
URI
Datum izdavanja:
1.6.2004.
Posjeta: 112 *