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Title: Testing axial and electromagnetic nucleon form factors in time-like regions in the processes p+n{yields}{pi}{sup -}+l{sup -}+l{sup +} and p+p{yields}{pi}{sup 0}+l{sup -}+l{sup +},l=e,{mu}

Abstract

In the frame of a phenomenological approach based on Compton-like Feynman amplitudes, we study the annihilation channel in antiproton nucleon collisions with production of a single charged or neutral pion and a lepton-antilepton pair. These reactions allow us to access nucleon and axial electromagnetic form factors in the time-like region and offer a unique possibility to study the kinematical region below the two-nucleon threshold. The differential cross section in an experimental setup where the pion is fully detected is given with explicit dependence on the relevant nucleon form factors. The possibility of measuring a heavy charged pion in the annihilation channel is also discussed.

Authors:
; ; ;  [1];  [2]
  1. DAPNIA/SPhN, CEA/Saclay, F-91191 Gif-sur-Yvette Cedex (France)
  2. (France)
Publication Date:
OSTI Identifier:
20995230
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 75; Journal Issue: 4; Other Information: DOI: 10.1103/PhysRevC.75.045205; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANNIHILATION; ANTILEPTONS; ANTIPROTONS; DIFFERENTIAL CROSS SECTIONS; ELECTROMAGNETIC FORM FACTORS; PIONS NEUTRAL; TESTING

Citation Formats

Adamuscin, C., Kuraev, E. A., Tomasi-Gustafsson, E., Maas, F. E., and CNRS/INP3, IPN Orsay, F-91400 Orsay Cedex. Testing axial and electromagnetic nucleon form factors in time-like regions in the processes p+n{yields}{pi}{sup -}+l{sup -}+l{sup +} and p+p{yields}{pi}{sup 0}+l{sup -}+l{sup +},l=e,{mu}. United States: N. p., 2007. Web. doi:10.1103/PHYSREVC.75.045205.
Adamuscin, C., Kuraev, E. A., Tomasi-Gustafsson, E., Maas, F. E., & CNRS/INP3, IPN Orsay, F-91400 Orsay Cedex. Testing axial and electromagnetic nucleon form factors in time-like regions in the processes p+n{yields}{pi}{sup -}+l{sup -}+l{sup +} and p+p{yields}{pi}{sup 0}+l{sup -}+l{sup +},l=e,{mu}. United States. doi:10.1103/PHYSREVC.75.045205.
Adamuscin, C., Kuraev, E. A., Tomasi-Gustafsson, E., Maas, F. E., and CNRS/INP3, IPN Orsay, F-91400 Orsay Cedex. Sun . "Testing axial and electromagnetic nucleon form factors in time-like regions in the processes p+n{yields}{pi}{sup -}+l{sup -}+l{sup +} and p+p{yields}{pi}{sup 0}+l{sup -}+l{sup +},l=e,{mu}". United States. doi:10.1103/PHYSREVC.75.045205.
@article{osti_20995230,
title = {Testing axial and electromagnetic nucleon form factors in time-like regions in the processes p+n{yields}{pi}{sup -}+l{sup -}+l{sup +} and p+p{yields}{pi}{sup 0}+l{sup -}+l{sup +},l=e,{mu}},
author = {Adamuscin, C. and Kuraev, E. A. and Tomasi-Gustafsson, E. and Maas, F. E. and CNRS/INP3, IPN Orsay, F-91400 Orsay Cedex},
abstractNote = {In the frame of a phenomenological approach based on Compton-like Feynman amplitudes, we study the annihilation channel in antiproton nucleon collisions with production of a single charged or neutral pion and a lepton-antilepton pair. These reactions allow us to access nucleon and axial electromagnetic form factors in the time-like region and offer a unique possibility to study the kinematical region below the two-nucleon threshold. The differential cross section in an experimental setup where the pion is fully detected is given with explicit dependence on the relevant nucleon form factors. The possibility of measuring a heavy charged pion in the annihilation channel is also discussed.},
doi = {10.1103/PHYSREVC.75.045205},
journal = {Physical Review. C, Nuclear Physics},
number = 4,
volume = 75,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}