Measurements of the Exclusive Decays of the {upsilon}(5S) to B Meson Final States and Improved B{sub s}* Mass Measurement

Journal Article · Fri Apr 21 04:00:00 EDT 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.96.152001· OSTI ID:20777152

Aquines, O; Li, Z; Lopez, A; Mendez, H; Ramirez, J ^[1]; Huang, G S; Miller, D H; Pavlunin, V; Sanghi, B; Shipsey, I P.J.; Xin, B ^[2]; Adams, G S; Anderson, M; Cummings, J P; Danko, I; Napolitano, J ^[3]; He, Q; Insler, J; Muramatsu, H; Park, C S ^[4]

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1. University of Puerto Rico, Mayaguez, 00681 (Puerto Rico)
2. Purdue University, West Lafayette, Indiana 47907 (United States)
3. Rensselaer Polytechnic Institute, Troy, New York 12180 (United States)
4. University of Rochester, Rochester, New York 14627 (United States)

Using 420 pb{sup -1} of data collected on the {upsilon}(5S) resonance with the CLEO III detector, we reconstruct B mesons in 25 exclusive decay channels to measure or set upper limits on the decay rate of {upsilon}(5S) into B meson final states. We measure the inclusive B cross section to be {sigma}({upsilon}(5S){yields}BB(X))=(0.177{+-}0.030{+-}0.016) nb and make the first measurements of the production rates of {sigma}({upsilon}(5S){yields}B*B*)=(0.131{+-}0.025{+-}0.014) nb and {sigma}({upsilon}(5S){yields}BB*)=(0.043{+-}0.016{+-}0.006) nb, respectively. We set 90% confidence level limits of {sigma}({upsilon}(5S){yields}BB)<0.038 nb, {sigma}({upsilon}(5S){yields}B{sup (*)}B{sup (*)}{pi})<0.055 nb and {sigma}({upsilon}(5S){yields}BB{pi}{pi})<0.024 nb. We also extract the most precise value of the B{sub s}* mass to date, M(B{sub s}*)=(5411.7{+-}1.6{+-}0.6) MeV/c{sup 2}.

• OSTI ID: 20777152
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 96; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
CESR STORAGE RING
CROSS SECTIONS
MASS
MULTIPARTICLE SPECTROMETERS
PARTICLE DECAY
PARTICLE IDENTIFICATION
RESONANCE