TY - JOUR
T1 - Total cross section of the pp→pp η reaction near threshold
AU - Bergdolt, A. M.
AU - Bergdolt, G.
AU - Bing, O.
AU - Bouchakour, A.
AU - Brochard, F.
AU - Hibou, F.
AU - Moalem, A.
AU - Taleb, A.
AU - Combes-Comets, M. P.
AU - Courtat, P.
AU - Gacougnolle, R.
AU - Bornec, Y. Le
AU - Loireleux, E.
AU - Reide, F.
AU - Tatischeff, B.
AU - Willis, N.
AU - Boivin, M.
AU - Nefkens, B. M.K.
AU - Plouin, F.
PY - 1993/1/1
Y1 - 1993/1/1
N2 - The pp→pp η reaction is studied at energies near the η production threshold. The total cross sections at nominal machine energies of 1260, 1265, and 1300 MeV are 90±15, 790±120, and 3460±690 nb, respectively. None of the existing perturbative model calculations reproduces the energy dependence, which deviates strongly from phase space. This suggests that the cross section is enhanced in the near vicinity of the production threshold by a large η-pp scattering length.
AB - The pp→pp η reaction is studied at energies near the η production threshold. The total cross sections at nominal machine energies of 1260, 1265, and 1300 MeV are 90±15, 790±120, and 3460±690 nb, respectively. None of the existing perturbative model calculations reproduces the energy dependence, which deviates strongly from phase space. This suggests that the cross section is enhanced in the near vicinity of the production threshold by a large η-pp scattering length.
UR - http://www.scopus.com/inward/record.url?scp=4243448792&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.48.R2969
DO - 10.1103/PhysRevD.48.R2969
M3 - Article
AN - SCOPUS:4243448792
VL - 48
SP - R2969-R2973
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 7
ER -