Measurements of branching fraction ratios and CP asymmetries in B[superscript ±]→DCPK[superscript ±] decays in hadron collisions
We reconstruct B[superscript ±]→DK[superscript ±] decays in a data sample collected by the CDF II detector at the Tevatron collider corresponding to 1 fb[superscript -1] of integrated luminosity. We select decay modes where the D meson decays to either K-π+ (flavor eigenstate) or K[superscript -]K...
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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/1721.1/56255 https://orcid.org/0000-0002-6047-4211 |
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| author | Gomez-Ceballos, Guillelmo Paus, Christoph M. E. Bauer, Gerry P Goncharov, Maxim Makhoul, Khaldoun |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Gomez-Ceballos, Guillelmo Paus, Christoph M. E. Bauer, Gerry P Goncharov, Maxim Makhoul, Khaldoun |
| author_sort | Gomez-Ceballos, Guillelmo |
| collection | MIT |
| description | We reconstruct B[superscript ±]→DK[superscript ±] decays in a data sample collected by the CDF II detector at the Tevatron collider corresponding to 1 fb[superscript -1] of integrated luminosity. We select decay modes where the D meson decays to either K-π+ (flavor eigenstate) or K[superscript -]K[superscript +], π[superscript -]π[superscript +] (CP-even eigenstates), and measure the direct CP asymmetry A[subscript CP+]=0.39±0.17(stat)±0.04(syst), and the double ratio of CP-even to flavor eigenstate branching fractions R[subscript CP+]=1.30±0.24(stat)±0.12(syst). These measurements will improve the determination of the Cabibbo-Kobayashi-Maskawa angle γ. They are performed here for the first time using data from hadron collisions. |
| first_indexed | 2024-09-23T10:42:37Z |
| format | Article |
| id | mit-1721.1/56255 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:42:37Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/562552023-02-26T05:56:02Z Measurements of branching fraction ratios and CP asymmetries in B[superscript ±]→DCPK[superscript ±] decays in hadron collisions Measurements of branching fraction ratios and CP asymmetries in B±→DCPK± decays in hadron collisions Gomez-Ceballos, Guillelmo Paus, Christoph M. E. Bauer, Gerry P Goncharov, Maxim Makhoul, Khaldoun Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Paus, Christoph M. E. Bauer, Gerry P. Gomez-Ceballos, Guillelmo Goncharov, M. Makhoul, K. Paus, Christoph M. E. We reconstruct B[superscript ±]→DK[superscript ±] decays in a data sample collected by the CDF II detector at the Tevatron collider corresponding to 1 fb[superscript -1] of integrated luminosity. We select decay modes where the D meson decays to either K-π+ (flavor eigenstate) or K[superscript -]K[superscript +], π[superscript -]π[superscript +] (CP-even eigenstates), and measure the direct CP asymmetry A[subscript CP+]=0.39±0.17(stat)±0.04(syst), and the double ratio of CP-even to flavor eigenstate branching fractions R[subscript CP+]=1.30±0.24(stat)±0.12(syst). These measurements will improve the determination of the Cabibbo-Kobayashi-Maskawa angle γ. They are performed here for the first time using data from hadron collisions. United States. Dept. of Energy National Science Foundation Istituto Nazionale di Fisica Nucleare of Italy Ministry of Education, Culture, Sports, Science and Technology of Japan Natural Sciences and Engineering Research Council of Canada National Science Council of the Republic of China Swiss National Science Foundation Alfred P. Sloan Foundation Bundesministerium für Bildung und Forschung, Germany Korean Science and Engineering Foundation Korean Research Foundation Science and Technology Facilities Council, United Kingdom Royal Society, United Kingdom Institut National de Physique Nucleaire et Physique des Particules/CNRS Russian Foundation for Basic Research MEC (Spain) Slovak R&D Agency Academy of Finland 2010-07-12T15:01:15Z 2010-07-12T15:01:15Z 2010-02 2009-11 Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/56255 CDF Collaboration et al. “Measurements of branching fraction ratios and CP asymmetries in B±-->DCPK± decays in hadron collisions.” Physical Review D 81.3 (2010): 031105. © 2010 The American Physical Society https://orcid.org/0000-0002-6047-4211 en_US http://dx.doi.org/10.1103/PhysRevD.81.031105 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 | Gomez-Ceballos, Guillelmo Paus, Christoph M. E. Bauer, Gerry P Goncharov, Maxim Makhoul, Khaldoun Measurements of branching fraction ratios and CP asymmetries in B[superscript ±]→DCPK[superscript ±] decays in hadron collisions |
| title | Measurements of branching fraction ratios and CP asymmetries in B[superscript ±]→DCPK[superscript ±] decays in hadron collisions |
| title_full | Measurements of branching fraction ratios and CP asymmetries in B[superscript ±]→DCPK[superscript ±] decays in hadron collisions |
| title_fullStr | Measurements of branching fraction ratios and CP asymmetries in B[superscript ±]→DCPK[superscript ±] decays in hadron collisions |
| title_full_unstemmed | Measurements of branching fraction ratios and CP asymmetries in B[superscript ±]→DCPK[superscript ±] decays in hadron collisions |
| title_short | Measurements of branching fraction ratios and CP asymmetries in B[superscript ±]→DCPK[superscript ±] decays in hadron collisions |
| title_sort | measurements of branching fraction ratios and cp asymmetries in b superscript dcpk superscript decays in hadron collisions |
| url | http://hdl.handle.net/1721.1/56255 https://orcid.org/0000-0002-6047-4211 |
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