Search for the Z(4430)[superscript -] at BABAR
We report the results of a search for Z(4430)- decay to J/psi pi- or psi(2S)pi - in B-,0→J/psi pi-K0,+ and B-,0-->psi(2S)pi-K0,+ decays. The data were collected with the BABAR detector at the SLAC PEP-II asymmetric-energy e+e- collider operating at center-of-mass energy 10.58 GeV, and the sample...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/55371 https://orcid.org/0000-0002-7586-7253 https://orcid.org/0000-0002-8667-5660 |
| _version_ | 1826204427765153792 |
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| author | Zhao, M. Yamamoto, R. K. Sciolla, Gabriella Henderson, Shawn Wesley Dujmic, Denis Taylor, Frank E Spitznagel, Michael A Cowan, Ray F Fisher, Peter H |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Zhao, M. Yamamoto, R. K. Sciolla, Gabriella Henderson, Shawn Wesley Dujmic, Denis Taylor, Frank E Spitznagel, Michael A Cowan, Ray F Fisher, Peter H |
| author_sort | Zhao, M. |
| collection | MIT |
| description | We report the results of a search for Z(4430)- decay to J/psi pi- or psi(2S)pi - in B-,0→J/psi pi-K0,+ and B-,0-->psi(2S)pi-K0,+ decays. The data were collected with the BABAR detector at the SLAC PEP-II asymmetric-energy e+e- collider operating at center-of-mass energy 10.58 GeV, and the sample corresponds to an integrated luminosity of 413 fb[superscript -1]. Each Kpi- mass distribution exhibits clear K*(892) and K[subscript 2]*(1430) signals, and the efficiency-corrected spectrum is well described by a superposition of the associated Breit-Wigner intensity distributions, together with an S-wave contribution obtained from the LASS I=1/2 Kpi- scattering amplitude measurements. Each Kpi- angular distribution varies significantly in structure with Kpi- mass, and is represented in terms of low-order Legendre polynomial moments. We find that each J/psi pi- or psi(2S)pi- mass distribution is well described by the reflection of the measured Kπ- mass and angular distribution structures. We see no significant evidence for a Z(4430)- signal for any of the processes investigated, neither in the total J/psi pi- or psi(2S)pi- mass distribution, nor in the corresponding distributions for the regions of Kpi- mass for which observation of the Z(4430)- signal was reported. We obtain branching-fraction upper limits B(B- -->Z-K[over-bar] 0,Z-→J/psi pi-)<1.5×10[superscript -5], B(B0-->Z-K+,Z- -->J/psi pi-)<0.4×10[superscript -5], B(B- -->Z-K[over-bar] 0,Z- -->psi(2S)pi-)<4.7×10[superscript -5], and B(B0-->Z-K+,Z--->psi(2S)pi-)<3.1×10[superscript -5] at 95% confidence level, where the Z(4430)- mass and width have been fixed to the reported central values. |
| first_indexed | 2024-09-23T12:54:54Z |
| format | Article |
| id | mit-1721.1/55371 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:54:54Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/553712023-02-26T10:27:05Z Search for the Z(4430)[superscript -] at BABAR Search for the Z(4430)- at BABAR Zhao, M. Yamamoto, R. K. Sciolla, Gabriella Henderson, Shawn Wesley Dujmic, Denis Taylor, Frank E Spitznagel, Michael A Cowan, Ray F Fisher, Peter H Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Fisher, Peter H. Zhao, M. Yamamoto, R. K. Taylor, Frank E. Spitznagel, M. Sciolla, Gabriella Henderson, Shawn Wesley Dujmic, Denis Cowan, Ray Franklin Fisher, Peter H. We report the results of a search for Z(4430)- decay to J/psi pi- or psi(2S)pi - in B-,0→J/psi pi-K0,+ and B-,0-->psi(2S)pi-K0,+ decays. The data were collected with the BABAR detector at the SLAC PEP-II asymmetric-energy e+e- collider operating at center-of-mass energy 10.58 GeV, and the sample corresponds to an integrated luminosity of 413 fb[superscript -1]. Each Kpi- mass distribution exhibits clear K*(892) and K[subscript 2]*(1430) signals, and the efficiency-corrected spectrum is well described by a superposition of the associated Breit-Wigner intensity distributions, together with an S-wave contribution obtained from the LASS I=1/2 Kpi- scattering amplitude measurements. Each Kpi- angular distribution varies significantly in structure with Kpi- mass, and is represented in terms of low-order Legendre polynomial moments. We find that each J/psi pi- or psi(2S)pi- mass distribution is well described by the reflection of the measured Kπ- mass and angular distribution structures. We see no significant evidence for a Z(4430)- signal for any of the processes investigated, neither in the total J/psi pi- or psi(2S)pi- mass distribution, nor in the corresponding distributions for the regions of Kpi- mass for which observation of the Z(4430)- signal was reported. We obtain branching-fraction upper limits B(B- -->Z-K[over-bar] 0,Z-→J/psi pi-)<1.5×10[superscript -5], B(B0-->Z-K+,Z- -->J/psi pi-)<0.4×10[superscript -5], B(B- -->Z-K[over-bar] 0,Z- -->psi(2S)pi-)<4.7×10[superscript -5], and B(B0-->Z-K+,Z--->psi(2S)pi-)<3.1×10[superscript -5] at 95% confidence level, where the Z(4430)- mass and width have been fixed to the reported central values. Science and Technology Facilities Council, United Kingdom MEC (Spain) Ministry of Education and Science of the Russian Federation Norges forskningsråd FOM of the Netherlands Istituto Nazionale di Fisica Nucleare of Italy Deutsche Forschungsgemeinschaft Bundesministerium für Bildung und Forschung, Germany Institut National de Physique Nucleaire et Physique des Particules/CNRS Commissariat à l'Energie Atomique (France) Natural Sciences and Engineering Research Council of Canada National Science Foundation United States Department of Energy 2010-06-02T19:42:45Z 2010-06-02T19:42:45Z 2009-06 2008-11 Article http://purl.org/eprint/type/JournalArticle 1550-7998 http://hdl.handle.net/1721.1/55371 BABAR Collaboration et al. “Search for the Z(4430)[superscript -] at BABAR.” Physical Review D 79.11 (2009): 112001. © 2009 The American Physical Society. https://orcid.org/0000-0002-7586-7253 https://orcid.org/0000-0002-8667-5660 en_US http://dx.doi.org/10.1103/PhysRevD.79.112001 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 |
| spellingShingle | Zhao, M. Yamamoto, R. K. Sciolla, Gabriella Henderson, Shawn Wesley Dujmic, Denis Taylor, Frank E Spitznagel, Michael A Cowan, Ray F Fisher, Peter H Search for the Z(4430)[superscript -] at BABAR |
| title | Search for the Z(4430)[superscript -] at BABAR |
| title_full | Search for the Z(4430)[superscript -] at BABAR |
| title_fullStr | Search for the Z(4430)[superscript -] at BABAR |
| title_full_unstemmed | Search for the Z(4430)[superscript -] at BABAR |
| title_short | Search for the Z(4430)[superscript -] at BABAR |
| title_sort | search for the z 4430 superscript at babar |
| url | http://hdl.handle.net/1721.1/55371 https://orcid.org/0000-0002-7586-7253 https://orcid.org/0000-0002-8667-5660 |
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