Search for B[superscript ±]→[K[superscript ∓]π[superscript ±]][subscript D]K[superscript ±] and Upper Limit on the b→u Amplitude in B[superscript ±]→DK[superscript ±]
We search for B[superscript ±]→[K[superscript ∓]π[superscript ±]]DK[superscript ±] decays, where [K[superscript ∓]π[superscript ±]][subscript D] indicates that the K[superscript ∓]π[superscript ±] pair originates from the decay of a D[superscript 0] or D̅[superscript 0). Results are based on 120×10[...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/70888 https://orcid.org/0000-0002-7586-7253 |
| _version_ | 1826213695695355904 |
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| author | Sciolla, Gabriella Yamamoto, R. K. Cowan, Ray F Taylor, Frank E |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Sciolla, Gabriella Yamamoto, R. K. Cowan, Ray F Taylor, Frank E |
| author_sort | Sciolla, Gabriella |
| collection | MIT |
| description | We search for B[superscript ±]→[K[superscript ∓]π[superscript ±]]DK[superscript ±] decays, where [K[superscript ∓]π[superscript ±]][subscript D] indicates that the K[superscript ∓]π[superscript ±] pair originates from the decay of a D[superscript 0] or D̅[superscript 0). Results are based on 120×10[superscript 6] Υ(4S)→BB̅ decays collected with the BABAR detector at SLAC. We set an upper limit on the ratio R[subscript Kπ]≡ [Γ(B[superscript +]→[K[superscript -]π[superscript +]]DK[superscript +])+Γ(B[superscript -]→[K[superscript +]π[superscript -]]DK[superscript -])]/[Γ(B[superscript +]→[K[superscript +]π[superscript -]][subscript D]K[superscript +])+Γ(B[superscript -]→[K[superscript -]π[superscript +]][subscript D]K[superscript -])]<0.026 (90% C.L.). This constrains the amplitude ratio r[subscript B]≡ |A(B[superscript -]→D̅ [superscript 0]K[superscript -])/A(B[superscript -]→D[superscript 0]K[superscript -])|<0.22 (90% C.L.), consistent with expectations. The small value of r[subscript B] favored by our analysis suggests that the determination of the Cabibbo-Kobayashi-Maskawa phase γ from B→DK will be difficult. |
| first_indexed | 2024-09-23T15:53:21Z |
| format | Article |
| id | mit-1721.1/70888 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:53:21Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/708882023-02-26T05:59:09Z Search for B[superscript ±]→[K[superscript ∓]π[superscript ±]][subscript D]K[superscript ±] and Upper Limit on the b→u Amplitude in B[superscript ±]→DK[superscript ±] Search for B±→[K∓π±]DK± and Upper Limit on the b→u Amplitude in B±→DK± Sciolla, Gabriella Yamamoto, R. K. Cowan, Ray F Taylor, Frank E Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Sciolla, Gabriella Cowan, Ray Franklin Sciolla, Gabriella Taylor, Frank E. Yamamoto, R. K. We search for B[superscript ±]→[K[superscript ∓]π[superscript ±]]DK[superscript ±] decays, where [K[superscript ∓]π[superscript ±]][subscript D] indicates that the K[superscript ∓]π[superscript ±] pair originates from the decay of a D[superscript 0] or D̅[superscript 0). Results are based on 120×10[superscript 6] Υ(4S)→BB̅ decays collected with the BABAR detector at SLAC. We set an upper limit on the ratio R[subscript Kπ]≡ [Γ(B[superscript +]→[K[superscript -]π[superscript +]]DK[superscript +])+Γ(B[superscript -]→[K[superscript +]π[superscript -]]DK[superscript -])]/[Γ(B[superscript +]→[K[superscript +]π[superscript -]][subscript D]K[superscript +])+Γ(B[superscript -]→[K[superscript -]π[superscript +]][subscript D]K[superscript -])]<0.026 (90% C.L.). This constrains the amplitude ratio r[subscript B]≡ |A(B[superscript -]→D̅ [superscript 0]K[superscript -])/A(B[superscript -]→D[superscript 0]K[superscript -])|<0.22 (90% C.L.), consistent with expectations. The small value of r[subscript B] favored by our analysis suggests that the determination of the Cabibbo-Kobayashi-Maskawa phase γ from B→DK will be difficult. United States. Dept. of Energy National Science Foundation (U.S.) Alfred P. Sloan Foundation Alexander von Humboldt-Stiftung Research Corporation 2012-05-18T21:33:12Z 2012-05-18T21:33:12Z 2004-09 2004-02 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/70888 Aubert, B. et al. “Search for B±→[K∓π±]DK± and Upper Limit on the B→u Amplitude in B±→DK±.” Physical Review Letters 93.13 (2004): Web. 18 May 2012. © 2004 American Physical Society https://orcid.org/0000-0002-7586-7253 en_US http://dx.doi.org/10.1103/PhysRevLett.93.131804 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 | Sciolla, Gabriella Yamamoto, R. K. Cowan, Ray F Taylor, Frank E Search for B[superscript ±]→[K[superscript ∓]π[superscript ±]][subscript D]K[superscript ±] and Upper Limit on the b→u Amplitude in B[superscript ±]→DK[superscript ±] |
| title | Search for B[superscript ±]→[K[superscript ∓]π[superscript ±]][subscript D]K[superscript ±] and Upper Limit on the b→u Amplitude in B[superscript ±]→DK[superscript ±] |
| title_full | Search for B[superscript ±]→[K[superscript ∓]π[superscript ±]][subscript D]K[superscript ±] and Upper Limit on the b→u Amplitude in B[superscript ±]→DK[superscript ±] |
| title_fullStr | Search for B[superscript ±]→[K[superscript ∓]π[superscript ±]][subscript D]K[superscript ±] and Upper Limit on the b→u Amplitude in B[superscript ±]→DK[superscript ±] |
| title_full_unstemmed | Search for B[superscript ±]→[K[superscript ∓]π[superscript ±]][subscript D]K[superscript ±] and Upper Limit on the b→u Amplitude in B[superscript ±]→DK[superscript ±] |
| title_short | Search for B[superscript ±]→[K[superscript ∓]π[superscript ±]][subscript D]K[superscript ±] and Upper Limit on the b→u Amplitude in B[superscript ±]→DK[superscript ±] |
| title_sort | search for b superscript k superscript ∓ π superscript subscript d k superscript and upper limit on the b u amplitude in b superscript dk superscript |
| url | http://hdl.handle.net/1721.1/70888 https://orcid.org/0000-0002-7586-7253 |
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