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Article
Measurement of the Differential Cross Section for the Reaction γn→π−p from Deuterium,
Physical Review Letters
Document Type
Article
Article Version
Publisher's PDF
Publication Date
1-1-2009
Disciplines
Abstract
We report a measurement of the differential cross section for the γn→π−p process from the CLAS detector at Jefferson Laboratory in Hall B for photon energies between 1.0 and 3.5 GeV and pion center-of-mass (c.m.) angles (θc.m.) between 50° and 115°. We confirm a previous indication of a broad enhancement around a c.m. energy (s√) of 2.1 GeV at θc.m.=90° in the scaled differential cross section s7dσdt and a rapid falloff in a center-of-mass energy region of about 400 MeV following the enhancement. Our data show an angular dependence of this enhancement as the suggested scaling region is approached for θc.m. from 70° to 105°.
Comments
Copyright American Physical Society
Publisher final version available at
http://prl.aps.org/pdf/PRL/v103/i1/e012301
Published Citation
W. Chen et al., "Measurement of the Differential Cross Section for the Reaction γn→π−p from Deuterium," Physical Review Letters 103.1 (2009)
DOI: 10.1103/PhysRevLett.103.012301
DOI
10.1103/PhysRevLett.103.012301
None
Peer Reviewed
Citation Information
W. Chen and Angela Biselli. "Measurement of the Differential Cross Section for the Reaction γn→π−p from Deuterium," Physical Review Letters Vol. 103 Iss. 1 (2009) Available at: http://works.bepress.com/angela_biselli/71/