Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-05-12
Physics
High Energy Physics
High Energy Physics - Phenomenology
28 pages
Scientific paper
We discuss the determination of the parameters of the pp and ppbar amplitudes for the description of scattering in the Coulomb interference region. We put enphasis on the possibility that the effective slope observed in the differential cross section is formed by different exponential slopes in the real and imaginary amplitudes (called B_R and B_I). For this purpose we develop a more general treatment of the Coulomb phase. We analyse the differential cross section data in the range from 19 to 1800 GeV with four parameters (sigma , rho, B_I, B_R), and observe that we cannot obtain from the data a unique determination of the parameters. We investigate correlations in pairs of the four quantities, showing ranges leading to the smaller chi2 values. In the specific case of p-pbar scattering at 541 GeV, we investigate the measurements of event rate dN/dt at low |t| in terms of the Coulomb interference with exponentially decreasing nuclear amplitudes. The analysis allows a determination of the normalization factor connecting the event rate with the absolute cross section.
Ferreira Erasmo
Kendi Anderson
Kodama Takeshi
No associations
LandOfFree
Amplitudes in the Coulomb interference region of pp and ppbar scattering does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Amplitudes in the Coulomb interference region of pp and ppbar scattering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amplitudes in the Coulomb interference region of pp and ppbar scattering will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-128126