Evidence for the h[subscript b](1P) meson in the decay Υ(3S)→π[superscript 0]h[subscript b](1P)
Using a sample of 122 × 10[superscript 6] Υ(3S) events recorded with the BABAR detector at the PEP-II asymmetric-energy e[superscript +]e[superscript -] collider at SLAC, we search for the h[subscript b](1P) spin-singlet partner of the P-wave χ[subscript bJ](1P) states in the sequential decay Υ(3S)...
| Main Authors: | , , , |
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| Format: | Article |
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American Physical Society (APS)
2018
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| Online Access: | http://hdl.handle.net/1721.1/116677 |
| _version_ | 1810976497738973184 |
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| author | BaBar Collaboration Cowan, Ray F Dujmic, Denis Sciolla, Gabriella |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics BaBar Collaboration Cowan, Ray F Dujmic, Denis Sciolla, Gabriella |
| author_sort | BaBar Collaboration |
| collection | MIT |
| description | Using a sample of 122 × 10[superscript 6] Υ(3S) events recorded with the BABAR detector at the PEP-II asymmetric-energy e[superscript +]e[superscript -] collider at SLAC, we search for the h[subscript b](1P) spin-singlet partner of the P-wave χ[subscript bJ](1P) states in the sequential decay Υ(3S) →π[superscript 0]h[subscript b](1P), h[subscript b] (1P) →γη[subscript b](1S). We observe an excess of events above background in the distribution of the recoil mass against the π0 at mass 9902±4(stat)±2(syst)MeV/c[superscript 2]. The width of the observed signal is consistent with experimental resolution, and its significance is 3.1σ, including systematic uncertainties. We obtain the value (4.3±1.1(stat) ±0.9(syst))×10[superscript - 4] for the product branching fraction B(Υ(3S)→π0h[subscript b])×B(h[subscript b] →γη[subscript b]). |
| first_indexed | 2024-09-23T08:56:13Z |
| format | Article |
| id | mit-1721.1/116677 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T08:56:13Z |
| publishDate | 2018 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1166772022-09-26T09:21:40Z Evidence for the h[subscript b](1P) meson in the decay Υ(3S)→π[superscript 0]h[subscript b](1P) BaBar Collaboration Cowan, Ray F Dujmic, Denis Sciolla, Gabriella Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Cowan, Ray F Dujmic, Denis Sciolla, Gabriella Using a sample of 122 × 10[superscript 6] Υ(3S) events recorded with the BABAR detector at the PEP-II asymmetric-energy e[superscript +]e[superscript -] collider at SLAC, we search for the h[subscript b](1P) spin-singlet partner of the P-wave χ[subscript bJ](1P) states in the sequential decay Υ(3S) →π[superscript 0]h[subscript b](1P), h[subscript b] (1P) →γη[subscript b](1S). We observe an excess of events above background in the distribution of the recoil mass against the π0 at mass 9902±4(stat)±2(syst)MeV/c[superscript 2]. The width of the observed signal is consistent with experimental resolution, and its significance is 3.1σ, including systematic uncertainties. We obtain the value (4.3±1.1(stat) ±0.9(syst))×10[superscript - 4] for the product branching fraction B(Υ(3S)→π0h[subscript b])×B(h[subscript b] →γη[subscript b]). 2018-06-28T17:03:52Z 2018-06-28T17:03:52Z 2011-11 2011-02 2018-06-15T16:56:17Z Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/116677 Lees, J. P. et al. “Evidence for the h[subscript b](1P) meson in the decay Υ(3S)→π[superscript 0]h[subscript b](1P).” Physical Review D 84, 9 (November 2011): 091101(R) © 2011 American Physical Society http://dx.doi.org/10.1103/PhysRevD.84.091101 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) American Physical Society |
| spellingShingle | BaBar Collaboration Cowan, Ray F Dujmic, Denis Sciolla, Gabriella Evidence for the h[subscript b](1P) meson in the decay Υ(3S)→π[superscript 0]h[subscript b](1P) |
| title | Evidence for the h[subscript b](1P) meson in the decay Υ(3S)→π[superscript 0]h[subscript b](1P) |
| title_full | Evidence for the h[subscript b](1P) meson in the decay Υ(3S)→π[superscript 0]h[subscript b](1P) |
| title_fullStr | Evidence for the h[subscript b](1P) meson in the decay Υ(3S)→π[superscript 0]h[subscript b](1P) |
| title_full_unstemmed | Evidence for the h[subscript b](1P) meson in the decay Υ(3S)→π[superscript 0]h[subscript b](1P) |
| title_short | Evidence for the h[subscript b](1P) meson in the decay Υ(3S)→π[superscript 0]h[subscript b](1P) |
| title_sort | evidence for the h subscript b 1p meson in the decay υ 3s π superscript 0 h subscript b 1p |
| url | http://hdl.handle.net/1721.1/116677 |
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