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Investigation of the reaction. pi. /sup -/p. -->. etan at momenta up to 40 GeV/c

Journal Article · · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:7214191
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Cross sections for the reaction ..pi../sup -/p..-->..etan are measured at the momenta 15 and 40 GeV/c. About 30,000 events are recorded. A hodoscope spectrometer on line with a computer was used to detect ..gamma.. pairs from eta-meson decays. The differential cross section decreases exponentially with increasing t, the 4-momentum transfer squared, and for -t>2 (GeV/c)/sup 2/ it is less than 1 nb/(GeV/c)/sup 2/. The A/sub 2/ trajectory is determined; it has a linear form ..cap alpha../sub A/2(t) =0.45+0.7t in the region 0<-t9 or approx. =1 (GeV/c)/sup 2/.
Research Organization:
Joint Experiment of the Institute of High Energy Physics (Serpukhov, USSR) and the European Organization for Nuclear Research (Geneva, Switzerland)
OSTI ID:
7214191
Journal Information:
Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 25:2; ISSN SJNCA
Country of Publication:
United States
Language:
English

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Related Subjects

645104* -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOSONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
ETA MESONS
FERMIONS
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
LINEAR MOMENTUM TRANSFER
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
MOMENTUM TRANSFER
NEUTRONS
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PION MINUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
PSEUDOSCALAR MESONS
REGGE TRAJECTORIES