Measurement of the $CP$ asymmetry in $D^0\toπ^+π^-π^0$ decays at Belle II Article Swipe
Abumusabh, M.
,
Adachi, I.
,
Aggarwal, L.
,
Ahmed, H.
,
Ahn Y.
,
Aihara, H.
,
Akopov, N.
,
Alghamdi S
,
Alhakami, M.
,
Aloisio, A.
,
Althubiti, N.
,
Amos K
,
Anh Ky, N.
,
Asner, D. M.
,
Atmacan, H.
,
Aushev, T.
,
Ayad, R.
,
Babu, V.
,
Bae, H.
,
Baghel, N. K.
,
Bahinipati, S.
,
Bambade, P.
,
Banerjee, Sw.
,
Barrett, M.
,
Bartl, M.
,
Baudot, J.
,
Beaubien, A.
,
Becherer, F.
,
Becker, J.
,
Bennett, J. V.
,
Bernlochner, F. U.
,
Bertacchi, V.
,
Bertemes, M.
,
Bertholet, E.
,
Bessner, M.
,
Bettarini, S.
,
Bhardwaj, V.
,
Bhuyan, B.
,
Bianchi, F.
,
Bilka, T.
,
Biswas, D.
,
Bobrov, A.
,
Bodrov, D.
,
Bonvicini, G.
,
Borah, J.
,
Boschetti, A.
,
Bozek, A.
,
Bračko, M.
,
Branchini, P.
,
Briere, R. A.
,
Browder, T. E.
,
Budano, A.
,
Bussino, S.
,
Campagna, Q.
,
Campajola, M.
,
Casarosa, G.
,
Cecchi, C.
,
Chang, P.
,
Cheema, P.
,
Chen, L
,
Cheon, B. G.
,
Cheshta, C.
,
Chetri, H.
,
Chilikin, K.
,
Chin, J
,
Chirapatpimol, K.
,
Cho, H. -E.
,
Cho, K.
,
Cho S J
,
Choi, S. K.
,
Choudhury, S.
,
Colorado-Caicedo, J. A.
,
Consigny, I.
,
Corona, L.
,
Cui, J. X.
,
Das, S.
,
De La Cruz-Burelo, E.
,
De La Motte, S. A.
,
De Nardo, G.
,
De Pietro, G.
,
de Sangro, R.
,
Destefanis, M.
,
Di Canto, A.
,
Doležal, Z.
,
Domínguez Jiménez, I.
,
Dong, T. V.
,
Dong, X.
,
Dorigo, M.
,
Dujany, G.
,
Ecker, P.
,
Epifanov, D.
,
Eppelt, J.
,
Farkas, R.
,
Feichtinger, P.
,
Ferber, T.
,
Fillinger, T.
,
Finck, C.
,
Finocchiaro, G.
,
Forti, F.
,
Fulsom, B. G.
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3204/pubdb-2025-04653
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.3204/pubdb-2025-04653
We measure the time- and phase-space-integrated $CP$ asymmetry $A_{CP}$ in $D^0\toπ^+π^-π^0$ decays reconstructed in $e^+e^-\to c\bar c$ events collected by the Belle II experiment from 2019 to 2022. This sample corresponds to an integrated luminosity of 428 fb$^{-1}$. We require $D^0$ mesons to be produced in $D^{*+}\to D^0π^+$ decays to determine their flavor at production. Control samples of $D^0\to K^-π^+$ decays are used to correct for reconstruction-induced asymmetries. The result, $A_{CP}(D^0\toπ^+π^-π^0)=(0.29\pm0.27\pm0.13)\%$, where the first uncertainty is statistical and the second systematic, is the most precise result to date and is consistent with $CP$ conservation.
Related Topics
Concepts
Physics
Asymmetry
Particle physics
Luminosity
Measure (data warehouse)
Meson
Nuclear physics
Particle decay
D meson
B meson
CP violation
Electron–positron annihilation
Calibration
Particle identification
Statistical analysis
Sample (material)
Systematic error
Elementary particle
Physics beyond the Standard Model
Collider
Detector
Statistical fluctuations
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3204/pubdb-2025-04653
- OA Status
- green
- OpenAlex ID
- https://openalex.org/W7104006292
All OpenAlex metadata
Raw OpenAlex JSON
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https://openalex.org/W7104006292Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3204/pubdb-2025-04653Digital Object Identifier
- Title
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Measurement of the $CP$ asymmetry in $D^0\toπ^+π^-π^0$ decays at Belle IIWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-01-01Full publication date if available
- Authors
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Abumusabh, M., Adachi, I., Aggarwal, L., Ahmed, H., Ahn Y., Aihara, H., Akopov, N., Alghamdi S, Alhakami, M., Aloisio, A., Althubiti, N., Amos K, Anh Ky, N., Asner, D. M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Bae, H., Baghel, N. K., Bahinipati, S., Bambade, P., Banerjee, Sw., Barrett, M., Bartl, M., Baudot, J., Beaubien, A., Becherer, F., Becker, J., Bennett, J. V., Bernlochner, F. U., Bertacchi, V., Bertemes, M., Bertholet, E., Bessner, M., Bettarini, S., Bhardwaj, V., Bhuyan, B., Bianchi, F., Bilka, T., Biswas, D., Bobrov, A., Bodrov, D., Bonvicini, G., Borah, J., Boschetti, A., Bozek, A., Bračko, M., Branchini, P., Briere, R. A., Browder, T. E., Budano, A., Bussino, S., Campagna, Q., Campajola, M., Casarosa, G., Cecchi, C., Chang, P., Cheema, P., Chen, L, Cheon, B. G., Cheshta, C., Chetri, H., Chilikin, K., Chin, J, Chirapatpimol, K., Cho, H. -E., Cho, K., Cho S J, Choi, S. K., Choudhury, S., Colorado-Caicedo, J. A., Consigny, I., Corona, L., Cui, J. X., Das, S., De La Cruz-Burelo, E., De La Motte, S. A., De Nardo, G., De Pietro, G., de Sangro, R., Destefanis, M., Di Canto, A., Doležal, Z., Domínguez Jiménez, I., Dong, T. V., Dong, X., Dorigo, M., Dujany, G., Ecker, P., Epifanov, D., Eppelt, J., Farkas, R., Feichtinger, P., Ferber, T., Fillinger, T., Finck, C., Finocchiaro, G., Forti, F., Fulsom, B. G.List of authors in order
- Landing page
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https://doi.org/10.3204/pubdb-2025-04653Publisher landing page
- Open access
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YesWhether a free full text is available
- OA status
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greenOpen access status per OpenAlex
- OA URL
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https://doi.org/10.3204/pubdb-2025-04653Direct OA link when available
- Concepts
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Physics, Asymmetry, Particle physics, Luminosity, Measure (data warehouse), Meson, Nuclear physics, Particle decay, D meson, B meson, CP violation, Electron–positron annihilation, Calibration, Particle identification, Statistical analysis, Sample (material), Systematic error, Elementary particle, Physics beyond the Standard Model, Collider, Detector, Statistical fluctuationsTop concepts (fields/topics) attached by OpenAlex
- Cited by
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0Total citation count in OpenAlex
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