Observation of New Charmless Decays of Bottom Hadrons
We search for new charmless decays of neutral b hadrons to pairs of charged hadrons, using 1 fb[superscript -1] of data collected by the CDF II detector at the Fermilab Tevatron. We report the first observation of the B[subscript s][superscript 0]→K[superscript -]π[superscript +] decay and measure...
| Main Authors: | , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
American Physical Society
2010
|
| Online Access: | http://hdl.handle.net/1721.1/51899 https://orcid.org/0000-0002-6047-4211 |
| _version_ | 1826198536324120576 |
|---|---|
| author | Xie, Si Knuteson, Bruce O. Henderson, C. Hahn, Kristian Allan Gomez-Ceballos, Guillelmo Choudalakis, Georgios Paus, Christoph M. E. Makhoul, Khaldoun Goncharov, Maxim Bauer, Gerry P |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Xie, Si Knuteson, Bruce O. Henderson, C. Hahn, Kristian Allan Gomez-Ceballos, Guillelmo Choudalakis, Georgios Paus, Christoph M. E. Makhoul, Khaldoun Goncharov, Maxim Bauer, Gerry P |
| author_sort | Xie, Si |
| collection | MIT |
| description | We search for new charmless decays of neutral b hadrons to pairs of charged hadrons, using 1 fb[superscript -1] of data collected by the CDF II detector at the Fermilab Tevatron. We report the first observation of the B[subscript s][superscript 0]→K[superscript -]π[superscript +] decay and measure B[subscript s][superscript 0]→K[superscript -]π[superscript +]=(5.0±0.7(stat)±0.8(syst))×10[superscript -6]. We also report the first observation of charmless b-baryon decays, and measure B(Λ[subscript b][superscript 0]→pπ[superscript -])=(3.5±0.6(stat)±0.9(syst))×10[superscript -6] and B(Λb0→pK-)=(5.6±0.8(stat)±1.5(syst))×10[superscript -6]. No evidence is found for other modes, and we set the limit B(B[subscript s][superscript 0]→π[superscript +]π[superscript -])<1.2×10[superscript -6] at 90% C.L. |
| first_indexed | 2024-09-23T11:06:24Z |
| format | Article |
| id | mit-1721.1/51899 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:06:24Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/518992023-02-26T06:06:53Z Observation of New Charmless Decays of Bottom Hadrons Xie, Si Knuteson, Bruce O. Henderson, C. Hahn, Kristian Allan Gomez-Ceballos, Guillelmo Choudalakis, Georgios Paus, Christoph M. E. Makhoul, Khaldoun Goncharov, Maxim Bauer, Gerry P Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Paus, Christoph M. E. Xie, Si Makhoul, K. Knuteson, Bruce O. Henderson, C. Hahn, Kristian Allan Goncharov, M. Gomez-Ceballos, Guillelmo Choudalakis, Georgios Bauer, Gerry P. Paus, Christoph M. E. We search for new charmless decays of neutral b hadrons to pairs of charged hadrons, using 1 fb[superscript -1] of data collected by the CDF II detector at the Fermilab Tevatron. We report the first observation of the B[subscript s][superscript 0]→K[superscript -]π[superscript +] decay and measure B[subscript s][superscript 0]→K[superscript -]π[superscript +]=(5.0±0.7(stat)±0.8(syst))×10[superscript -6]. We also report the first observation of charmless b-baryon decays, and measure B(Λ[subscript b][superscript 0]→pπ[superscript -])=(3.5±0.6(stat)±0.9(syst))×10[superscript -6] and B(Λb0→pK-)=(5.6±0.8(stat)±1.5(syst))×10[superscript -6]. No evidence is found for other modes, and we set the limit B(B[subscript s][superscript 0]→π[superscript +]π[superscript -])<1.2×10[superscript -6] at 90% C.L. Academy of Finland Slovak R&D Agency Programa Consolider-Ingenio 2010, Spain Ministerio de Ciencia e Innovación, Spain Russian Foundation for Basic Research Institut National de Physique Nucleaire et Physique des Particules/CNRS Royal Society, United Kingdom Science and Technology Facilities Council, United Kingdom Korean Research Foundation Korean Science and Engineering Foundation Bundesministerium für Bildung und Forschung, Germany Alfred P. Sloan Foundation Swiss National Science Foundation National Science Council of the Republic of China Natural Sciences and Engineering Research Council of Canada Ministry of Education, Culture, Sports, Science and Technology of Japan Italian Istituto Nazionale di Fisica Nucleare National Science Foundation United States Department of Energy 2010-03-02T20:11:49Z 2010-03-02T20:11:49Z 2009-07 2008-12 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/51899 CDF Collaboration et al. “Observation of New Charmless Decays of Bottom Hadrons.” Physical Review Letters 103.3 (2009): 031801. © 2009 The American Physical Society https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevLett.103.031801 Physical Review Letters 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 |
| spellingShingle | Xie, Si Knuteson, Bruce O. Henderson, C. Hahn, Kristian Allan Gomez-Ceballos, Guillelmo Choudalakis, Georgios Paus, Christoph M. E. Makhoul, Khaldoun Goncharov, Maxim Bauer, Gerry P Observation of New Charmless Decays of Bottom Hadrons |
| title | Observation of New Charmless Decays of Bottom Hadrons |
| title_full | Observation of New Charmless Decays of Bottom Hadrons |
| title_fullStr | Observation of New Charmless Decays of Bottom Hadrons |
| title_full_unstemmed | Observation of New Charmless Decays of Bottom Hadrons |
| title_short | Observation of New Charmless Decays of Bottom Hadrons |
| title_sort | observation of new charmless decays of bottom hadrons |
| url | http://hdl.handle.net/1721.1/51899 https://orcid.org/0000-0002-6047-4211 |
| work_keys_str_mv | AT xiesi observationofnewcharmlessdecaysofbottomhadrons AT knutesonbruceo observationofnewcharmlessdecaysofbottomhadrons AT hendersonc observationofnewcharmlessdecaysofbottomhadrons AT hahnkristianallan observationofnewcharmlessdecaysofbottomhadrons AT gomezceballosguillelmo observationofnewcharmlessdecaysofbottomhadrons AT choudalakisgeorgios observationofnewcharmlessdecaysofbottomhadrons AT pauschristophme observationofnewcharmlessdecaysofbottomhadrons AT makhoulkhaldoun observationofnewcharmlessdecaysofbottomhadrons AT goncharovmaxim observationofnewcharmlessdecaysofbottomhadrons AT bauergerryp observationofnewcharmlessdecaysofbottomhadrons |