| Title: | First model-independent Dalitz analysis of $B^0 \to D^0K^{\ast 0}$, $D\to K_S^0\pi ^+\pi ^-$ decay |
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| Authors: | ID Negishi, K. (Author)
ID Biswal, Jyoti Prakash (Author)
ID Bračko, Marko (Author)
ID Golob, Boštjan (Author)
ID Korpar, Samo (Author)
ID Križan, Peter (Author)
ID Nanut, Tara (Author)
ID Pestotnik, Rok (Author)
ID Petrič, Marko (Author)
ID Ribežl, Eva (Author)
ID Stanič, Samo (Author)
ID Starič, Marko (Author)
ID Šantelj, Luka (Author)
ID Zupanc, Anže (Author), et al. |
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| Files: |  Progress_of_Theoretical_and_Experimental_Physics_2016_Ishikawa_et_al._First_model-independent_Dalitz_analysis_of_B0→DK∗0,_D→KS0ππ−_decay.pdf (555,01 KB)
MD5: F0AD2ED5127DB7CED64AD9294B2EBABE
PID: 20.500.12556/dkum/3f8602b5-c960-46db-8872-e1c4d0216c28
 https://academic.oup.com/ptep/article-lookup/doi/10.1093/ptep/ptw030
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FKKT - Faculty of Chemistry and Chemical Engineering
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| Abstract: | We report a measurement of the amplitude ratio $r_S$ of $B^0 \to D^0K^{\ast 0}$ and $B^0 \to \bar {D^0}K^{\ast 0}$ decays with a Dalitz analysis of $D\to K_S^0\pi ^+\pi ^-$ decays, for the first time using a model-independent method. We set an upper limit $r_S < 0.87$ at the 68% confidence level, using the full data sample of $711\,{\rm fb}^{-1}$ corresponding to $772\times 10^6$ $B\bar {B}$ pairs collected at the $\Upsilon (4S)$ resonance with the Belle detector at the KEKB $e^+e^-$ collider. This result is obtained from observables $x_- = +0.4 ^{+1.0 +0.0}_{-0.6 -0.1} \pm 0.0$, $y_- = -0.6 ^{+0.8 +0.1}_{-1.0 -0.0} \pm 0.1$, $x_+ = +0.1 ^{+0.7 +0.0}_{-0.4 -0.1} \pm 0.1$, and $y_+ = +0.3 ^{+0.5 +0.0}_{-0.8 -0.1} \pm 0.1$, where $x_\pm = r_S \cos (\delta _S \pm \phi _3)$, $y_\pm = r_S \sin (\delta _S \pm \phi _3)$, and $\phi _3\ (\delta _S)$ is the weak (strong) phase difference between $B^0 \to D^0K^{\ast 0}$ and $B^0 \to \bar {D^0}K^{\ast 0}$. |
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| Keywords: | CO2, CO3, Cabibbo-Kobayashi-Maskawa quark-mixing matrix, CP violation, experimental particle physics |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2016 |
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| Number of pages: | str. 043C01-1 |
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| Numbering: | Letn. 2016, št. 4 |
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| PID: | 20.500.12556/DKUM-66970  |
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| ISSN: | 2050-3911 |
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| UDC: | 539.1 |
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| ISSN on article: | 2050-3911 |
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| COBISS.SI-ID: | 29823527 |
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| DOI: | 10.1093/ptep/ptw030 |
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| NUK URN: | URN:SI:UM:DK:HTVDLRHM |
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| Publication date in DKUM: | 21.07.2017 |
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| Views: | 2026 |
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| Downloads: | 345 |
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| Metadata: |    |
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| Categories: | Misc.
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