Determination of the η(')-proton scattering length in free space.
Phys Rev Lett
; 113(6): 062004, 2014 Aug 08.
Article
in En
| MEDLINE
| ID: mdl-25148320
ABSTRACT
Taking advantage of both the high mass resolution of the COSY-11 detector and the high energy resolution of the low-emittance proton beam of the cooler synchrotron COSY, we determine the excitation function for the ppâppη(') reaction close to threshold. Combining these data with previous results, we extract the scattering length for the η(')-proton potential in free space to be Re(a(pη(')))=0±0.43 fm and Im(a(pη(')))=0.37(-0.16)(+0.40) fm.
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Phys Rev Lett
Year:
2014
Document type:
Article