Inclusive muon production in e/sup +/e/sup -/ annihilation with < s/sup 1/2/> = 7. 3 GeV

Journal Article · Mon Mar 27 04:00:00 EST 1978 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.40.827· OSTI ID:7208044

Badtke, D H; Barnett, B A; Jones, L H; Zorn, G T; Cavalli-Sforza, M; Goggi, G; Impellizzeri, F S; Livan, M M; Pastore, F; Rossini, B; Aschman, D G; Coyne, D G; Groom, D E; O'Neill, G K; Sadrozinski, H F.W.; Shinsky, K A; Keller, L P

We present reslts on charged multiplicity n/sub ch/ = 2 and n/sub ch/ > 2 muon events produced in e/sup +/e/sup -/ collisions with < s/sup 1/2/ > = 7.3 GeV at 90/sup 0/ to the beams. The background-subtracted inclusive cross section for the n/sub ch/ = 2 events is 10.2 +- 5.4 pb/sr, in agreement with the expected contribution from the heavy lepton tau. The cross section for the n/sub ch/ > 2 events is 19.0 +- 6.5 pb/sr whereas we expect only 2.9 pb/sr from the tau, indicating that we may be seeing the weak decays of charmed mesons.

• Research Organization: University of Maryland, College Park, Maryland 20742
• OSTI ID: 7208044
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 40:13; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental-- Weak Interactions &amp; Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
BASIC INTERACTIONS
CROSS SECTIONS
DECAY
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
GEV RANGE 01-10
HEAVY LEPTONS
INCLUSIVE INTERACTIONS
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
LEPTONS
MULTIPLICITY
MUONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
POSTULATED PARTICLES