Measurement of D[superscript 0] − [¯ over D][superscript 0] Mixing Parameters Using D[superscript 0] → K[subscript S][superscript 0]π[superscript +]π[superscript −] and D[superscript 0] → K[subscript S][superscript 0]K[superscript +]K[superscript −] Decays
We report a direct measurement of D[superscript 0]-[ ̄ over D][superscript 0] mixing parameters through a time-dependent amplitude analysis of the Dalitz plots of D[superscript 0]→K[superscript 0][subscript S]π[superscript +]π[superscript -] and, for the first time, D[superscript 0]→K[superscript 0...
| 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/1721.1/117360 https://orcid.org/0000-0002-8667-5660 |
| _version_ | 1826191421826138112 |
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| author | Cowan, Ray F Dujmic, Denis Fisher, Peter H Sciolla, Gabriella Zhao, M. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Cowan, Ray F Dujmic, Denis Fisher, Peter H Sciolla, Gabriella Zhao, M. |
| author_sort | Cowan, Ray F |
| collection | MIT |
| description | We report a direct measurement of D[superscript 0]-[ ̄ over D][superscript 0] mixing parameters through a time-dependent amplitude analysis of the Dalitz plots of D[superscript 0]→K[superscript 0][subscript S]π[superscript +]π[superscript -] and, for the first time, D[superscript 0]→K[superscript 0][subscript S]K[superscript +]K[superscript -] decays. The low-momentum pion π[superscript +][subscript s] in the decay D[superscript *+] →D[superscript 0]π[superscript +][subscript s] identifies the flavor of the neutral D meson at its production. Using 468.5fb[superscript - 1] of e[superscript +]e[superscript -] colliding-beam data recorded near √s=10.6 GeV by the BABAR detector at the PEP-II asymmetric-energy collider at SLAC, we measure the mixing parameters x=[1.6±2.3(stat)±1.2(syst)±0.8(model) ] ×10[superscript - 3], and y=[5.7±2.0(stat)±1.3(syst)±0. 7(model)]×10[superscript - 3]. These results provide the best measurement to date of x and y. The knowledge of the value of x, in particular, is crucial for understanding the origin of mixing. © 2010 The American Physical Society. |
| first_indexed | 2024-09-23T08:55:36Z |
| format | Article |
| id | mit-1721.1/117360 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T08:55:36Z |
| publishDate | 2018 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1173602023-02-26T04:03:16Z Measurement of D[superscript 0] − [¯ over D][superscript 0] Mixing Parameters Using D[superscript 0] → K[subscript S][superscript 0]π[superscript +]π[superscript −] and D[superscript 0] → K[subscript S][superscript 0]K[superscript +]K[superscript −] Decays Cowan, Ray F Dujmic, Denis Fisher, Peter H Sciolla, Gabriella Zhao, M. Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Cowan, Ray F Dujmic, Denis Fisher, Peter H Sciolla, Gabriella Zhao, Min Liang We report a direct measurement of D[superscript 0]-[ ̄ over D][superscript 0] mixing parameters through a time-dependent amplitude analysis of the Dalitz plots of D[superscript 0]→K[superscript 0][subscript S]π[superscript +]π[superscript -] and, for the first time, D[superscript 0]→K[superscript 0][subscript S]K[superscript +]K[superscript -] decays. The low-momentum pion π[superscript +][subscript s] in the decay D[superscript *+] →D[superscript 0]π[superscript +][subscript s] identifies the flavor of the neutral D meson at its production. Using 468.5fb[superscript - 1] of e[superscript +]e[superscript -] colliding-beam data recorded near √s=10.6 GeV by the BABAR detector at the PEP-II asymmetric-energy collider at SLAC, we measure the mixing parameters x=[1.6±2.3(stat)±1.2(syst)±0.8(model) ] ×10[superscript - 3], and y=[5.7±2.0(stat)±1.3(syst)±0. 7(model)]×10[superscript - 3]. These results provide the best measurement to date of x and y. The knowledge of the value of x, in particular, is crucial for understanding the origin of mixing. © 2010 The American Physical Society. Alfred P. Sloan Foundation 2018-08-14T18:02:33Z 2018-08-14T18:02:33Z 2010-08 2010-04 2018-06-19T18:26:05Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/117360 del Amo Sanchez, P., et al. “Measurement of D[superscript 0] − [¯ over D][superscript 0] Mixing Parameters Using D[superscript 0] → K[subscript S][superscript 0]π[superscript +]π[superscript −] and D[superscript 0] → K[subscript S][superscript 0]K[superscript +]K[superscript −] Decays.” Physical Review Letters, vol. 105, no. 8, Aug. 2010. © 2010 The American Physical Society https://orcid.org/0000-0002-8667-5660 http://dx.doi.org/10.1103/PhysRevLett.105.081803 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) APS |
| spellingShingle | Cowan, Ray F Dujmic, Denis Fisher, Peter H Sciolla, Gabriella Zhao, M. Measurement of D[superscript 0] − [¯ over D][superscript 0] Mixing Parameters Using D[superscript 0] → K[subscript S][superscript 0]π[superscript +]π[superscript −] and D[superscript 0] → K[subscript S][superscript 0]K[superscript +]K[superscript −] Decays |
| title | Measurement of D[superscript 0] − [¯ over D][superscript 0] Mixing Parameters Using D[superscript 0] → K[subscript S][superscript 0]π[superscript +]π[superscript −] and D[superscript 0] → K[subscript S][superscript 0]K[superscript +]K[superscript −] Decays |
| title_full | Measurement of D[superscript 0] − [¯ over D][superscript 0] Mixing Parameters Using D[superscript 0] → K[subscript S][superscript 0]π[superscript +]π[superscript −] and D[superscript 0] → K[subscript S][superscript 0]K[superscript +]K[superscript −] Decays |
| title_fullStr | Measurement of D[superscript 0] − [¯ over D][superscript 0] Mixing Parameters Using D[superscript 0] → K[subscript S][superscript 0]π[superscript +]π[superscript −] and D[superscript 0] → K[subscript S][superscript 0]K[superscript +]K[superscript −] Decays |
| title_full_unstemmed | Measurement of D[superscript 0] − [¯ over D][superscript 0] Mixing Parameters Using D[superscript 0] → K[subscript S][superscript 0]π[superscript +]π[superscript −] and D[superscript 0] → K[subscript S][superscript 0]K[superscript +]K[superscript −] Decays |
| title_short | Measurement of D[superscript 0] − [¯ over D][superscript 0] Mixing Parameters Using D[superscript 0] → K[subscript S][superscript 0]π[superscript +]π[superscript −] and D[superscript 0] → K[subscript S][superscript 0]K[superscript +]K[superscript −] Decays |
| title_sort | measurement of d superscript 0 ¯ over d superscript 0 mixing parameters using d superscript 0 k subscript s superscript 0 π superscript π superscript and d superscript 0 k subscript s superscript 0 k superscript k superscript decays |
| url | http://hdl.handle.net/1721.1/117360 https://orcid.org/0000-0002-8667-5660 |
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