Evidence for the h_b(1P) meson in the decay Upsilon(3S) --> pi0 h_b(1P) Metadata
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Title
- Main Title Evidence for the h_b(1P) meson in the decay Upsilon(3S) --> pi0 h_b(1P)
Creator
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Author: Lees, J. P.Creator Type: Personal
Contributor
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Sponsor: United States. Department of Energy.Contributor Type: Organization
Publisher
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Name: SLAC National Accelerator LaboratoryPlace of Publication: United StatesAdditional Info: SLAC National Accelerator Laboratory (SLAC)
Date
- Creation: 2011-08-12
Language
- English
Description
- Content Description: Using a sample of 122 million {Upsilon}(3S) events recorded with the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} collider at SLAC, we search for the h{sub b}(1P) spin-singlet partner of the P-wave {chi}{sub b}(1P) states in the sequential decay {Upsilon}(3S) {yields} {pi}{sup 0}h{sub b}(1P), h{sub b}(1P) {yields} {gamma}{eta}{sub b}(1S). We observe an excess of events above background in the distribution of the recoil mass against the {pi}{sup 0} at mass 9902 {+-} 4(stat.) {+-} 1(syst.) MeV/c{sup 2}. The width of the observed signal is consistent with experimental resolution, and its significance is 3.0 {sigma}, including systematic uncertainties. We obtain the value (3.7 {+-} 1.1 (stat.) {+-} 0.7 (syst.)) x 10{sup -4} for the product branching fraction {Beta}({Upsilon}(3S) {yields} {pi}{sup 0}h{sub b}) x {Beta}(h{sub b} {yields} {gamma}{eta}{sub b}).
- Physical Description: 8 pages
Subject
- Keyword: Decay
- Keyword: Stanford Linear Accelerator Center Experiment-Hep,Hepex
- STI Subject Categories: 43 Particle Accelerators
- Keyword: Mesons
- Keyword: Experiment-Hep,Hepex
- Keyword: Distribution
- Keyword: Resolution
Source
- Journal Name: Submitted to Physical Review D
Collection
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Name: Office of Scientific & Technical Information Technical ReportsCode: OSTI
Institution
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Name: UNT Libraries Government Documents DepartmentCode: UNTGD
Resource Type
- Article
Format
- Text
Identifier
- Report No.: SLAC-PUB-14378
- Grant Number: AC02-76SF00515
- Office of Scientific & Technical Information Report Number: 1022560
- Archival Resource Key: ark:/67531/metadc832270
Note
- Display Note: http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-14378.html