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22-28 July 2018
Kellogg Hotel and Conference Center
EST timezone

Relations between scattering amplitude and Bethe-Salpeter wave function in quantum field theory

Jul 26, 2018, 11:20 AM
20m
105 (Kellogg Hotel and Conference Center)

105

Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Hadron Spectroscopy and Interactions Hadron Spectroscopy and Interactions

Speaker

Takeshi Yamazaki (Univerity of Tsukuba)

Description

We discuss an exact relation between the two-particle scattering amplitude and the Bethe-Salpeter (BS) wave function inside the interaction range in quantum field theory. In the relation the reduced BS wave function given by the BS wave function plays an essential role. Through the relation the on-shell and half off-shell amplitudes can be calculated. We also show that the solution of Schrodinger equation with the effective potential determined from the BS wave function gives a correct on-shell scattering amplitude only at the momentum where the effective potential is calculated.

Primary author

Takeshi Yamazaki (Univerity of Tsukuba)

Co-author

Prof. Yoshinobu Kuramashi (Univeristy of Tsukuba)

Presentation Materials