Measurement of {sigma}(e{sup +}e{sup -}{yields}{psi}(3770){yields}hadrons) at E{sub c.m.}=3773 MeV

Journal Article · Fri Mar 10 04:00:00 EST 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.96.092002· OSTI ID:20777075

Besson, D ^[1]; Pedlar, T K ^[2]; Cronin-Hennessy, D; Gao, K Y; Gong, D T; Hietala, J; Kubota, Y; Klein, T; Lang, B W; Poling, R; Scott, A W; Smith, A ^[3]; Dobbs, S; Metreveli, Z; Seth, K K; Tomaradze, A; Zweber, P ^[4]; Ernst, J ^[5]; Arms, K ^[6]; Severini, H ^[7]

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1. University of Kansas, Lawrence, Kansas 66045 (United States)
2. Luther College, Decorah, Iowa 52101 (United States)
3. University of Minnesota, Minneapolis, Minnesota 55455 (United States)
4. Northwestern University, Evanston, Illinois 60208 (United States)
5. State University of New York at Albany, Albany, New York 12222 (United States)
6. Ohio State University, Columbus, Ohio 43210 (United States)
7. University of Oklahoma, Norman, Oklahoma 73019 (United States)

We measure the cross section for e{sup +}e{sup -}{yields}{psi}(3770){yields}hadrons at E{sub c.m.}=3773 MeV to be (6.38{+-}0.08{sub -0.30}{sup +0.41}) nb using the CLEO detector at the CESR e{sup +}e{sup -} collider. The difference between this and the e{sup +}e{sup -}{yields}{psi}(3770){yields}DD cross section at the same energy is found to be (-0.01{+-}0.08{sub -0.30}{sup +0.41}) nb. With the observed total cross section, we extract {gamma}{sub ee}({psi}(3770))=(0.204{+-}0.003{sub -0.027}{sup +0.041}) keV. Uncertainties shown are statistical and systematic, respectively.

• OSTI ID: 20777075
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 9 Vol. 96; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
CESR STORAGE RING
ELECTRON-POSITRON INTERACTIONS
ELECTRONS
GEV RANGE 01-10
HADRONIC PARTICLE DECAY
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
POSITRONS
PSI-3770 MESONS
TOTAL CROSS SECTIONS