https://doi.org/10.1140/epjc/s10052-007-0392-6
Regular Article - Theoretical Physics
Test of the universal rise of hadronic total cross sections at super-high energies
1
Department of Physics, School of Science and Engineering, Meisei University, Hino, Tokyo, 191-8506, Japan
2
Theoretical Physics Laboratory, RIKEN, Wako, Saitama, 351-0198, Japan
* e-mail: ishida@phys.meisei-u.ac.jp
Received:
29
May
2007
Revised:
3
July
2007
Published online:
6
September
2007
The increase of the total cross sections at very high energies described by log2(s/s0) appears to be confirmed. In the analysis of the COMPETE collaboration in the Particle Data Group (2006), the Blog2(s/s0) was assumed to extend the universal rise of all the total hadronic cross sections to reduce the number of adjustable parameters. We test if the assumption on the universality of B is justified, through investigation of the values of B for π±p(K±p) and p̄p,pp scatterings. We search for the simultaneous best fit to the σtot and ρ ratios, using a constraint from the FESR of the P′ type for π∓p scatterings and constraints that are free from the unphysical regions for the p̄p,pp and K±p scatterings. By including rich information of the low-energy scattering data owing to the use of FESR, the errors of the B parameters decrease especially for πp. The resulting value of Bpp is consistent with Bπp within two standard deviations, which appears to support the universality hypothesis.
© Springer-Verlag , 2007