Inclusive production of rho/sup 0/ and. omega. mesons by 70-GeV/c protons in Be nuclei
Journal Article
·
· Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:6046531
We report the results of an experimental study of the contribution of rho/sup 0/ and ..omega.. mesons to the cross section for inclusive production of ..mu../sup +/..mu../sup -/ pairs by protons with momentum 70 GeV/c in Be nuclei for x> or =0.5 and p/sup 2//sub perpendicular/< or =1.5 (GeV/c)/sup 2/. The measured differential distributions in x and p/sup 2//sub perpendicular/ of muon pairs produced as the result of decays of rho/sup 0/ and ..omega.. mesons are satisfactorily approximated by the dependences xdsigma/dxapprox.(1-x)/sup n/ and dsigma/dp/sup 2//sub perpendicular/roughly-equalexp(-Bp/sup 2//sub perpendicular/) with parameters n = 2.9 and B = 3.15 (GeV/c)/sup -2/. The dependence on p/sup 2//sub perpendicular/ and x obtained in our experiment for the ratio of the contributions of rho/sup 0/ and ..omega.. mesons to the effective-mass spectrum of ..mu../sup +/..mu../sup -/ pairs gives indications that some part of the rho/sup 0/ mesons in the region of x studied are formed as the result of decays of higher-lying resonances.
- Research Organization:
- Institute of High Energy Physics, Serpukhov
- OSTI ID:
- 6046531
- Journal Information:
- Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 36:6; ISSN SJNCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON REACTIONS
BERYLLIUM 9 TARGET
BOSONS
CHARGED-PARTICLE REACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
GEV RANGE 10-100
HADRON REACTIONS
HADRONS
INCLUSIVE INTERACTIONS
INTERACTIONS
LINEAR MOMENTUM
MESON RESONANCES
MESONS
MUON PAIRS
NUCLEAR REACTIONS
NUCLEON REACTIONS
OMEGA-784 RESONANCES
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PROTON REACTIONS
RESONANCE PARTICLES
RHO-765 RESONANCES
TARGETS
TRANSVERSE MOMENTUM
VECTOR MESONS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON REACTIONS
BERYLLIUM 9 TARGET
BOSONS
CHARGED-PARTICLE REACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
GEV RANGE 10-100
HADRON REACTIONS
HADRONS
INCLUSIVE INTERACTIONS
INTERACTIONS
LINEAR MOMENTUM
MESON RESONANCES
MESONS
MUON PAIRS
NUCLEAR REACTIONS
NUCLEON REACTIONS
OMEGA-784 RESONANCES
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PROTON REACTIONS
RESONANCE PARTICLES
RHO-765 RESONANCES
TARGETS
TRANSVERSE MOMENTUM
VECTOR MESONS