Search for CP violation in D[superscript ±] → K[0 over S] K[superscript ±] and D[± over s] → K[0 over S]π[superscript ±] decays
A search for CP violation in Cabibbo-suppressed D[superscript ±] → K[0 over S] K[superscript ±] and D[± over s] → K[0 over S]π[superscript ±] decays is performed using pp collision data, corresponding to an integrated luminosity of 3 fb, recorded by the LHCb experiment. The individual CP-violating a...
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| Format: | Article |
| Language: | en_US |
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Springer-Verlag
2014
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| Online Access: | http://hdl.handle.net/1721.1/92536 https://orcid.org/0000-0001-8285-3346 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 |
| _version_ | 1811090816004784128 |
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| author | Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael |
| author_sort | Counts, Ian Thomas Hunt |
| collection | MIT |
| description | A search for CP violation in Cabibbo-suppressed D[superscript ±] → K[0 over S] K[superscript ±] and D[± over s] → K[0 over S]π[superscript ±] decays is performed using pp collision data, corresponding to an integrated luminosity of 3 fb, recorded by the LHCb experiment. The individual CP-violating asymmetries are measured to be
A[D± over CP] → K[0 over S]K[superscript ±] = (+0.03 ± 0.17 ± 0.14)%
A[D [± over s] over CP] → K[0 over S]π[superscript ±] = (+0.38 ± 0.46 ± 0.17)%,
assuming that CP violation in the Cabibbo-favoured decays is negligible. A combination of the measured asymmetries for the four decay modes D[± over (s) → K[0 over S]K[superscript ±] and D[± over (s) → K[0 over S]π[superscript ±] gives the sum
A[D±→K[0 over S]K[superscript] over CP] + A[D±s→K[0 over S]π[superscript ±] over CP] = (+0.41 ± 0.49 ± 0.26)%.
In all cases, the first uncertainties are statistical and the second systematic. The results represent the most precise measurements of these asymmetries to date and show no evidence for CP violation. |
| first_indexed | 2024-09-23T14:52:24Z |
| format | Article |
| id | mit-1721.1/92536 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:52:24Z |
| publishDate | 2014 |
| publisher | Springer-Verlag |
| record_format | dspace |
| spelling | mit-1721.1/925362023-02-26T04:29:08Z Search for CP violation in D[superscript ±] → K[0 over S] K[superscript ±] and D[± over s] → K[0 over S]π[superscript ±] decays Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Counts, Ian Thomas Hunt Ilten, Philip James Williams, M. A search for CP violation in Cabibbo-suppressed D[superscript ±] → K[0 over S] K[superscript ±] and D[± over s] → K[0 over S]π[superscript ±] decays is performed using pp collision data, corresponding to an integrated luminosity of 3 fb, recorded by the LHCb experiment. The individual CP-violating asymmetries are measured to be A[D± over CP] → K[0 over S]K[superscript ±] = (+0.03 ± 0.17 ± 0.14)% A[D [± over s] over CP] → K[0 over S]π[superscript ±] = (+0.38 ± 0.46 ± 0.17)%, assuming that CP violation in the Cabibbo-favoured decays is negligible. A combination of the measured asymmetries for the four decay modes D[± over (s) → K[0 over S]K[superscript ±] and D[± over (s) → K[0 over S]π[superscript ±] gives the sum A[D±→K[0 over S]K[superscript] over CP] + A[D±s→K[0 over S]π[superscript ±] over CP] = (+0.41 ± 0.49 ± 0.26)%. In all cases, the first uncertainties are statistical and the second systematic. The results represent the most precise measurements of these asymmetries to date and show no evidence for CP violation. National Science Foundation (U.S.) 2014-12-29T20:31:34Z 2014-12-29T20:31:34Z 2014-10 2014-09 Article http://purl.org/eprint/type/JournalArticle 1029-8479 1126-6708 http://hdl.handle.net/1721.1/92536 Aaij, R., B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, et al. “Search for CP Violation in D[superscript ±] → K[0 over S] K[superscript ±] and D[± over s] → K[0 over S]π[superscript ±] Decays.” J. High Energ. Phys. 2014, no. 10 (October 2014). https://orcid.org/0000-0001-8285-3346 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 en_US http://dx.doi.org/10.1007/jhep10(2014)025 Journal of High Energy Physics Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/ application/pdf Springer-Verlag Springer-Verlag |
| spellingShingle | Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael Search for CP violation in D[superscript ±] → K[0 over S] K[superscript ±] and D[± over s] → K[0 over S]π[superscript ±] decays |
| title | Search for CP violation in D[superscript ±] → K[0 over S] K[superscript ±] and D[± over s] → K[0 over S]π[superscript ±] decays |
| title_full | Search for CP violation in D[superscript ±] → K[0 over S] K[superscript ±] and D[± over s] → K[0 over S]π[superscript ±] decays |
| title_fullStr | Search for CP violation in D[superscript ±] → K[0 over S] K[superscript ±] and D[± over s] → K[0 over S]π[superscript ±] decays |
| title_full_unstemmed | Search for CP violation in D[superscript ±] → K[0 over S] K[superscript ±] and D[± over s] → K[0 over S]π[superscript ±] decays |
| title_short | Search for CP violation in D[superscript ±] → K[0 over S] K[superscript ±] and D[± over s] → K[0 over S]π[superscript ±] decays |
| title_sort | search for cp violation in d superscript k 0 over s k superscript and d over s k 0 over s π superscript decays |
| url | http://hdl.handle.net/1721.1/92536 https://orcid.org/0000-0001-8285-3346 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 |
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