10–15 Sept 2012
Puerto del Carmen, Lanzarote
Europe/Lisbon timezone

AMPLITUDES AND OBSERVABLES IN pp ELASTIC SCATTERING AT 7 TeV

14 Sept 2012, 10:10
20m
Puerto del Carmen, Lanzarote

Puerto del Carmen, Lanzarote

Canary Islands (Spain)
Talk at plenary session Diffraction in hadron-hadron collisions Diffraction in Hadron-Hadron Collisions (II)

Speaker

Mr Erasmo Ferreira (Universidade Federal do Rio de Janeiro)

Summary

A complete analysis is performed of the recent pp elastic
data at 7 TeV in terms of its real and imaginary amplitudes,
that are fully disentangled, consistently with dispersion
relations for amplitudes and for slopes.
Real and imaginary slopes B(R) and B(I), treated as independent
quantities, influence the whole t-range and the determination of
the total cross section. The treatment includes prediction for
the universal perturbative tail at large |t|.
New generalized expression is derived for the Coulomb phase.
Comparison is made of the values of total cross section and
B(I) obtained in forward and full-t approaches.

Primary author

Mr Erasmo Ferreira (Universidade Federal do Rio de Janeiro)

Co-authors

Mr Anderson Kendi Kohara (Universidade Federal do Rio de Janeiro) Mr Takeshi Kodama (Universidade Federal do Rio de Janeiro)

Presentation materials