26-30 March 2012
University of Bonn
Europe/Berlin timezone

Single-pion production in neutrino-matter collisions

29 Mar 2012, 11:20
Lecture Hall, Institute for Applied Physics (University of Bonn)

Lecture Hall, Institute for Applied Physics

University of Bonn

Diffraction and vector mesons Diffraction and vector mesons


Dr Marat Siddikov (UTFSM)


In this talk we present the results of the diffractive single-pion production on the protons and nuclei (both for the coherent and incoherent cases). We demonstrate that all the evaluations which are based on Adler relation (AR) are valid only in the region up to 10 GeV, in the regime of short lifetime of heavy hadronic fluctuations. At higher energies, when all the relevant time scales considerably exceed the size of the target, the AR explicitly breaks down on an absorptive target, such as a heavy nucleus. In this regime, close to the black disc limit, the off-diagonal diffractive amplitudes vanish, while the diagonal one, \pi->\pi, which enters the AR, maximizes and saturates the unitarity bound.

Primary author

Dr Marat Siddikov (UTFSM)


Prof. Boris Kopeliovich (UTFSM) Prof. Ivan Schmidt (UTFSM)

Presentation Materials