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

  • Author: Lees, J. P.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization

Publisher

  • Name: SLAC National Accelerator Laboratory
    Place of Publication: United States
    Additional 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

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: 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
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