Amplitude Analysis of the Decay B ¯ 0 → K S 0 π + π − and First Observation of the C P Asymmetry in B ¯ 0 → K * ( 892 ) − π +
The time-integrated Dalitz plot of the three-body hadronic charmless decay ${{\overline{B}}^0 \to K_{\mathrm{\scriptscriptstyle S}}^0 \pi^+ \pi^-}$ is studied using a $pp$ collision data sample recorded with the LHCb detector, corresponding to an integrated luminosity of $3.0\;\mathrm{fb}^{-1}$....
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society (APS)
2022
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| Online Access: | https://hdl.handle.net/1721.1/134092.2 |
| _version_ | 1811093457076224000 |
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| author | The LHCb Collaboration Boettcher, Thomas Julian Craik, Daniel C Ilten, Philip J Weisser, Constantin Williams, Michael |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics The LHCb Collaboration Boettcher, Thomas Julian Craik, Daniel C Ilten, Philip J Weisser, Constantin Williams, Michael |
| author_sort | The LHCb Collaboration |
| collection | MIT |
| description | The time-integrated Dalitz plot of the three-body hadronic charmless decay
${{\overline{B}}^0 \to K_{\mathrm{\scriptscriptstyle S}}^0 \pi^+ \pi^-}$ is
studied using a $pp$ collision data sample recorded with the LHCb detector,
corresponding to an integrated luminosity of $3.0\;\mathrm{fb}^{-1}$. The decay
amplitude is described with an isobar model. Relative contributions of the
isobar amplitudes to the ${\overline{B}^0 \to K_{\mathrm{\scriptscriptstyle
S}}^0 \pi^+ \pi^-}$ decay branching fraction and CP asymmetries of the
flavour-specific amplitudes are measured. The CP asymmetry between the
conjugate ${\overline{B}^0 \to K^{*}(892)^{-}\pi^+}$ and ${\overline{B}^0 \to
K^{*}(892)^{+}\pi^-}$ decay rates is determined to be $-0.308 \pm 0.062$. |
| first_indexed | 2024-09-23T15:45:29Z |
| format | Article |
| id | mit-1721.1/134092.2 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:45:29Z |
| publishDate | 2022 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/134092.22022-09-21T16:45:32Z Amplitude Analysis of the Decay B ¯ 0 → K S 0 π + π − and First Observation of the C P Asymmetry in B ¯ 0 → K * ( 892 ) − π + The LHCb Collaboration Boettcher, Thomas Julian Craik, Daniel C Ilten, Philip J Weisser, Constantin Williams, Michael Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science The time-integrated Dalitz plot of the three-body hadronic charmless decay ${{\overline{B}}^0 \to K_{\mathrm{\scriptscriptstyle S}}^0 \pi^+ \pi^-}$ is studied using a $pp$ collision data sample recorded with the LHCb detector, corresponding to an integrated luminosity of $3.0\;\mathrm{fb}^{-1}$. The decay amplitude is described with an isobar model. Relative contributions of the isobar amplitudes to the ${\overline{B}^0 \to K_{\mathrm{\scriptscriptstyle S}}^0 \pi^+ \pi^-}$ decay branching fraction and CP asymmetries of the flavour-specific amplitudes are measured. The CP asymmetry between the conjugate ${\overline{B}^0 \to K^{*}(892)^{-}\pi^+}$ and ${\overline{B}^0 \to K^{*}(892)^{+}\pi^-}$ decay rates is determined to be $-0.308 \pm 0.062$. 2022-09-21T16:45:31Z 2021-10-27T19:58:05Z 2022-09-21T16:45:31Z 2018 2021-03-30T13:42:25Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/134092.2 en 10.1103/PHYSREVLETT.120.261801 Physical Review Letters Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/octet-stream American Physical Society (APS) APS |
| spellingShingle | The LHCb Collaboration Boettcher, Thomas Julian Craik, Daniel C Ilten, Philip J Weisser, Constantin Williams, Michael Amplitude Analysis of the Decay B ¯ 0 → K S 0 π + π − and First Observation of the C P Asymmetry in B ¯ 0 → K * ( 892 ) − π + |
| title | Amplitude Analysis of the Decay B ¯ 0 → K S 0 π + π − and First Observation of the C P Asymmetry in B ¯ 0 → K * ( 892 ) − π + |
| title_full | Amplitude Analysis of the Decay B ¯ 0 → K S 0 π + π − and First Observation of the C P Asymmetry in B ¯ 0 → K * ( 892 ) − π + |
| title_fullStr | Amplitude Analysis of the Decay B ¯ 0 → K S 0 π + π − and First Observation of the C P Asymmetry in B ¯ 0 → K * ( 892 ) − π + |
| title_full_unstemmed | Amplitude Analysis of the Decay B ¯ 0 → K S 0 π + π − and First Observation of the C P Asymmetry in B ¯ 0 → K * ( 892 ) − π + |
| title_short | Amplitude Analysis of the Decay B ¯ 0 → K S 0 π + π − and First Observation of the C P Asymmetry in B ¯ 0 → K * ( 892 ) − π + |
| title_sort | amplitude analysis of the decay b ¯ 0 k s 0 π π and first observation of the c p asymmetry in b ¯ 0 k 892 π |
| url | https://hdl.handle.net/1721.1/134092.2 |
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