Measurement of the time-integrated $CP$ asymmetry in $D^0\to\pi^0\pi^0$ decays at Belle II

Adachi, I.; Volpe, R.; Farkas, R.; Lau, T. S.; Fodor, A.; Roney, J. M.; Uglov, T.; Feichtinger, P.; Won, E.; Mitra, S.; Gautam, V.; Yin, J. H.; Privalov, S.; Parham, K.; Shan, W.; Cho, K.; Gabrielli, A.; Iijima, T.; Iwasaki, M.; Godang, R.; Varvell, K. E.; Kowalewski, R.; Liao, Y. P.; Angelsmark, M.; Santelj, L.; Hayashii, H.; Zeyrek, M.; Gironella Gironell, P.; Ji, Q. P.; Ipsita, N.; Aushev, T.; Nakazawa, H.; Solovieva, E.; Kodyš, P.; Park, J.; Shillington, T.; Marinas, C.; Yan, W.; Natkaniec, Z.; Yabsley, B. D.; Neu, M.; Asner, D. M.; Ono, H.; Testa, F.; Natochii, A.; Heidelbach, A.; Lisovskyi, V.; Stavroulakis, P.; Finck, C.; Destefanis, M.; Prakash, A.; Forti, F.; Bartl, M.; Moser, H.-G.; Nayak, M.; Purwar, H.; Massaccesi, L.; Dorigo, M.; Li, Q. M.; Prell, S.; Moneta, S.; Wang, M.-Z.; Dujany, G.; Reuter, L.; Podesta-Lerma, P. L. M.; Lange, J. S.; Starič, M.; Okubo, R.; Tanida, K.; Ushiroda, Y.; Lin, J.; Bertemes, M.; Ricalde Herrmann, D.; Warburton, A.; Baghel, N. K.; Johnson, A.; Senyo, K.; Bondar, A.; Vismaya, V. S.; Campajola, M.; Mantovano, M.; Kumara, K.; Dong, T. V.; Manfredi, R.; Heine, G.; Reiter, S.; Barrett, M.; Jacobs, W. W.; Kuzmin, A.; Marcello, S.; Passeri, A.; Graziani, E.; Alghamdi, S.; Liu, Y.; Prencipe, E.; Bae, H.; Mancinelli, G.; Choudhury, S.; Schmitt, C.; Yelton, J.; Uchida, M.; McKenna, J. A.; Liventsev, D.; Raeuber, G.; Jackson, P.; Takizawa, M.; Žlebčík, R.; Serrano, J.; Cheon, B. G.; Gruberová, Z.; Alhakami, M.; Giri, A.; Browder, T. E.; Libby, J.; Ma, Y.; Inami, K.; Li, W. Z.; Kim, K.-H.; Garg, R.; Veronesi, M.; Lyu, C.; Khan, M.; Piilonen, L. E.; Yoshihara, K.; Akopov, N.; Hazra, S.; Ripp-Baudot, I.; Karyan, G.; Cao, L.; Biswas, D.; Maharana, S. P.; Unger, K.; Skorupa, J.; Greenwald, D.; Keil, F.; Koga, T.; Gaudino, G.; Rizzo, G.; Gogota, O.; Tsaklidis, I.; Li, L. K.; Park, K.; Lin, S.; Yuan, J.; Meier, F.; Ferber, T.; Gale, A.; Liu, Z.; Leo, P.; Giordano, R.; Doležal, Z.; Ayad, R.; Raj, V.; Budano, A.; Cheema, P.; Lemettais, C.; Jaffe, D. E.; Hsu, C.-L.; Althubiti, N.; Miller, C.; Ganiev, E.; Zhang, B.; Sobie, R. J.; Itoh, R.; Kandra, J.; Dingfelder, J.; Choi, S.-K.; Marcantonio, D.; Sokolov, A.; Savinov, V.; Di Canto, A.; Consigny, I.; Maiti, R.; Salutari, L.; Nishida, S.; Garcia-Hernandez, M.; Kim, J.-Y.; Sue, Y.; Bambade, P.; Wallner, S.; Bessner, M.; Suwonjandee, N.; Masuda, M.; Schneider, S.; Ghumaryan, H.; Spruck, B.; De Pietro, G.; Kang, K. H.; Park, H.; Schwartz, A. J.; Manoni, E.; Mohanty, G. B.; Bertholet, E.; Shwartz, B.; Hoek, M.; Shi, X. D.; Selce, A.; Domínguez Jiménez, I.; Kim, D. Y.; Merola, M.; Boschetti, A.; Vinokurova, A.; Pestotnik, R.; Prim, M. T.; Uno, S.; Gellrich, A.; Korpar, S.; Ueda, I.; Eppelt, J.; Kunigo, T.; Amos, K.; Kohani, S.; de Sangro, R.; Mizuk, R.; Higuchi, T.; Aloisio, A.; Raiz, S.; Gradl, W.; Liu, M. H.; Kwon, Y.-J.; Atmacan, H.; Martens, A.; Han, Y.; Bettarini, S.; Watanabe, M.; Jin, Y.; Schmitz, J.; Finocchiaro, G.; Yamada, S.; Baur, A.; Križan, P.; Zhu, L.; Schwanda, C.; Bennett, J. V.; Shtol, D.; De La Motte, S. A.; Maggiora, M.; Oxford, E. R.; Ketter, C.; Kawasaki, T.; Becker, J.; Anh Ky, N.; Liu, Q. Y.; Sobotzik, M.; Chilikin, K.; Tenchini, F.; Zhou, Q. D.; Belle-II Collaboration; Banerjee, Sw.; Torassa, E.; Podobnik, T.; Leboucher, R.; Zhilich, V.; Chirapatpimol, K.; Vossen, A.; Trabelsi, K.; Lam, T.; Korobov, A.; Stroili, R.; Shiu, J.-G.; Meleshko, D.; Sandilya, S.; Li, Y. B.; Yusa, Y.; Baudot, J.; Lalwani, K.; Scavino, B.; Kiesling, C.; Svidras, H.; Naruki, M.; Chin, J.; Watanuki, S.; Bračko, M.; Corona, L.; Epifanov, D.; Sfienti, C.; Gobbo, B.; Babu, V.; Jacobi, D.; Fillinger, T.; Gudkova, K.; Borah, J.; Rout, N.; Ravindran, K.; Branchini, P.; Bobrov, A.; Ishikawa, A.; Giakoustidis, G.; Lee, M. J.; Bozek, A.; Martinov, T.; Inguglia, G.; Sumihama, M.; Becherer, F.; Hernández Villanueva, M.; Tittel, O.; Bertacchi, V.; Schnepf, M.; Uno, K.; Fulsom, B. G.; Vitale, L.; Cho, H.-E.; Praz, C.; Ogawa, S.; Bernlochner, F. U.; Martellini, C.; Beaubien, A.; Cui, J. X.; Kojima, K.; Rostomyan, A.; Cho, S.-J.; Bianchi, F.; Park, S.-H.; Zhou, J. S.; Wessel, C.; van Tonder, R.; Trantou, F. F.; De La Cruz-Burelo, E.; Haide, I.; Bhuyan, B.; Sevior, M. E.; Madaan, C.; Kinoshita, K.; Le Diberder, F. R.; Nakazawa, Y.; Li, Y.; Gaur, V.; Unno, Y.; Maushart, M.; Ghosh, D.; Gaz, A.; Briere, R. A.; Laurenza, M.; Spataro, S.; Remnev, M.; Nakao, M.; Sanders, D. A.; Goldenzweig, P.; de la Cruz, I. Heredia; Bussino, S.; Bilka, T.; Stefkova, S.; Rehman, J. U.; Jia, S.; Casarosa, G.; Krokovny, P.; Rados, P.; Li, H.-J.; Simon, F.; Pardi, S.; Seino, Y.; Patra, S.; Cecchi, C.; Kovalenko, E.; Ahn, Y.; Antonioli, C.; Sibidanov, A.; Miyabayashi, K.; Bahinipati, S.; Ecker, P.; Longo, S.; Horak, P.; Hearty, C.; Zani, L.; Mirra, M.; Tiwary, R.; Pakhlova, G.; Soffer, A.; Yang, S. B.; Maurya, S. K.; Bodrov, D.; Hohmann, M.; Aversano, M.; Hedges, M. T.; Reif, M.

% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Adachi:630143,
      author       = {Adachi, I. and Ahn, Y. and Akopov, N. and Alghamdi, S. and
                      Alhakami, M. and Aloisio, A. and Althubiti, N. and Amos, K.
                      and Angelsmark, M. and Anh Ky, N. and Antonioli, C. and
                      Asner, D. M. and Atmacan, H. and Aushev, T. and Aversano, M.
                      and Ayad, R. and Babu, V. and Bae, H. and Baghel, N. K. and
                      Bahinipati, S. and Bambade, P. and Banerjee, Sw. and
                      Barrett, M. and Bartl, M. and Baudot, J. and Baur, A. and
                      Beaubien, A. and Becherer, F. and Becker, J. and Bennett, J.
                      V. and Bernlochner, F. U. and Bertacchi, V. and Bertemes, M.
                      and Bertholet, E. and Bessner, M. and Bettarini, S. and
                      Bhuyan, B. and Bianchi, F. and Bilka, T. and Biswas, D. and
                      Bobrov, A. and Bodrov, D. and Bondar, A. and Borah, J. and
                      Boschetti, A. and Bozek, A. and Bračko, M. and Branchini,
                      P. and Briere, R. A. and Browder, T. E. and Budano, A. and
                      Bussino, S. and Campajola, M. and Cao, L. and Casarosa, G.
                      and Cecchi, C. and Cheema, P. and Cheon, B. G. and Chilikin,
                      K. and Chin, J. and Chirapatpimol, K. and Cho, H.-E. and
                      Cho, K. and Cho, S.-J. and Choi, S.-K. and Choudhury, S. and
                      Consigny, I. and Corona, L. and Cui, J. X. and De La
                      Cruz-Burelo, E. and De La Motte, S. A. and De Pietro, G. and
                      de Sangro, R. and Destefanis, M. and Di Canto, A. and
                      Dingfelder, J. and Doležal, Z. and Domínguez Jiménez, I.
                      and Dong, T. V. and Dorigo, M. and Dujany, G. and Ecker, P.
                      and Epifanov, D. and Eppelt, J. and Farkas, R. and
                      Feichtinger, P. and Ferber, T. and Fillinger, T. and Finck,
                      C. and Finocchiaro, G. and Fodor, A. and Forti, F. and
                      Fulsom, B. G. and Gabrielli, A. and Gale, A. and Ganiev, E.
                      and Garcia-Hernandez, M. and Garg, R. and Gaudino, G. and
                      Gaur, V. and Gautam, V. and Gaz, A. and Gellrich, A. and
                      Ghosh, D. and Ghumaryan, H. and Giakoustidis, G. and
                      Giordano, R. and Giri, A. and Gironella Gironell, P. and
                      Gobbo, B. and Godang, R. and Gogota, O. and Goldenzweig, P.
                      and Gradl, W. and Graziani, E. and Greenwald, D. and
                      Gruberová, Z. and Gudkova, K. and Haide, I. and Han, Y. and
                      Hayashii, H. and Hazra, S. and Hearty, C. and Hedges, M. T.
                      and Heidelbach, A. and Heine, G. and de la Cruz, I. Heredia
                      and Hernández Villanueva, M. and Higuchi, T. and Hoek, M.
                      and Hohmann, M. and Horak, P. and Hsu, C.-L. and Iijima, T.
                      and Inami, K. and Inguglia, G. and Ipsita, N. and Ishikawa,
                      A. and Itoh, R. and Iwasaki, M. and Jackson, P. and Jacobi,
                      D. and Jacobs, W. W. and Jaffe, D. E. and Ji, Q. P. and Jia,
                      S. and Jin, Y. and Johnson, A. and Kandra, J. and Kang, K.
                      H. and Karyan, G. and Kawasaki, T. and Keil, F. and Ketter,
                      C. and Khan, M. and Kiesling, C. and Kim, D. Y. and Kim,
                      J.-Y. and Kim, K.-H. and Kinoshita, K. and Kodyš, P. and
                      Koga, T. and Kohani, S. and Kojima, K. and Korobov, A. and
                      Korpar, S. and Kovalenko, E. and Kowalewski, R. and Križan,
                      P. and Krokovny, P. and Kumara, K. and Kunigo, T. and
                      Kuzmin, A. and Kwon, Y.-J. and Lalwani, K. and Lam, T. and
                      Lange, J. S. and Lau, T. S. and Laurenza, M. and Leboucher,
                      R. and Le Diberder, F. R. and Lee, M. J. and Lemettais, C.
                      and Leo, P. and Li, H.-J. and Li, L. K. and Li, Q. M. and
                      Li, W. Z. and Li, Y. and Li, Y. B. and Liao, Y. P. and
                      Libby, J. and Lin, J. and Lin, S. and Lisovskyi, V. and Liu,
                      M. H. and Liu, Q. Y. and Liu, Y. and Liu, Z. and Liventsev,
                      D. and Longo, S. and Lyu, C. and Ma, Y. and Madaan, C. and
                      Maggiora, M. and Maharana, S. P. and Maiti, R. and
                      Mancinelli, G. and Manfredi, R. and Manoni, E. and
                      Mantovano, M. and Marcantonio, D. and Marcello, S. and
                      Marinas, C. and Martellini, C. and Martens, A. and Martinov,
                      T. and Massaccesi, L. and Masuda, M. and Maurya, S. K. and
                      Maushart, M. and McKenna, J. A. and Meier, F. and Meleshko,
                      D. and Merola, M. and Miller, C. and Mirra, M. and Mitra, S.
                      and Miyabayashi, K. and Mizuk, R. and Mohanty, G. B. and
                      Moneta, S. and Moser, H.-G. and Nakao, M. and Nakazawa, H.
                      and Nakazawa, Y. and Naruki, M. and Natkaniec, Z. and
                      Natochii, A. and Nayak, M. and Neu, M. and Nishida, S. and
                      Ogawa, S. and Okubo, R. and Ono, H. and Oxford, E. R. and
                      Pakhlova, G. and Pardi, S. and Parham, K. and Park, H. and
                      Park, J. and Park, K. and Park, S.-H. and Passeri, A. and
                      Patra, S. and Pestotnik, R. and Piilonen, L. E. and
                      Podesta-Lerma, P. L. M. and Podobnik, T. and Prakash, A. and
                      Praz, C. and Prell, S. and Prencipe, E. and Prim, M. T. and
                      Privalov, S. and Purwar, H. and Rados, P. and Raeuber, G.
                      and Raiz, S. and Raj, V. and Ravindran, K. and Rehman, J. U.
                      and Reif, M. and Reiter, S. and Remnev, M. and Reuter, L.
                      and Ricalde Herrmann, D. and Ripp-Baudot, I. and Rizzo, G.
                      and Roney, J. M. and Rostomyan, A. and Rout, N. and
                      Salutari, L. and Sanders, D. A. and Sandilya, S. and
                      Santelj, L. and Savinov, V. and Scavino, B. and Schmitt, C.
                      and Schmitz, J. and Schneider, S. and Schnepf, M. and
                      Schwanda, C. and Schwartz, A. J. and Seino, Y. and Selce, A.
                      and Senyo, K. and Serrano, J. and Sevior, M. E. and Sfienti,
                      C. and Shan, W. and Shi, X. D. and Shillington, T. and Shiu,
                      J.-G. and Shtol, D. and Shwartz, B. and Sibidanov, A. and
                      Simon, F. and Skorupa, J. and Sobie, R. J. and Sobotzik, M.
                      and Soffer, A. and Sokolov, A. and Solovieva, E. and
                      Spataro, S. and Spruck, B. and Starič, M. and Stavroulakis,
                      P. and Stefkova, S. and Stroili, R. and Sue, Y. and
                      Sumihama, M. and Suwonjandee, N. and Svidras, H. and
                      Takizawa, M. and Tanida, K. and Tenchini, F. and Testa, F.
                      and Tittel, O. and Tiwary, R. and Torassa, E. and Trabelsi,
                      K. and Trantou, F. F. and Tsaklidis, I. and Uchida, M. and
                      Ueda, I. and Uglov, T. and Unger, K. and Unno, Y. and Uno,
                      K. and Uno, S. and Ushiroda, Y. and van Tonder, R. and
                      Varvell, K. E. and Veronesi, M. and Vinokurova, A. and
                      Vismaya, V. S. and Vitale, L. and Volpe, R. and Vossen, A.
                      and Wallner, S. and Wang, M.-Z. and Warburton, A. and
                      Watanabe, M. and Watanuki, S. and Wessel, C. and Won, E. and
                      Yabsley, B. D. and Yamada, S. and Yan, W. and Yang, S. B.
                      and Yelton, J. and Yin, J. H. and Yoshihara, K. and Yuan, J.
                      and Yusa, Y. and Zani, L. and Zeyrek, M. and Zhang, B. and
                      Zhilich, V. and Zhou, J. S. and Zhou, Q. D. and Zhu, L. and
                      Žlebčík, R.},
      collaboration = {Belle-{II Collaboration}},
      title        = {{M}easurement of the time-integrated ${CP}$ asymmetry in
                      ${D}^0\to\pi^0\pi^0$ decays at {B}elle {II}},
      reportid     = {PUBDB-2025-01848, arXiv:2505.02912. Belle II Preprint
                      2025-009. KEK Preprint 2025-7},
      year         = {2025},
      note         = {BMBF, DFG, HGF, MPG, and AvH Foundation (Germany);},
      abstract     = {We measure the time-integrated $CP$ asymmetry, $A_{CP}$, in
                      $D^0\to\pi^0\pi^0$ decays reconstructed in $e^+e^-\to
                      c\bar{c}$ events collected by Belle II during 2019--2022.
                      The data corresponds to an integrated luminosity of
                      428$\mathrm{fb}^{-1}$. The $D^0$ decays are required to
                      originate from the flavor-conserving $D^{*+} \to D^0 \pi^+$
                      decay to determine the charm flavor at production time.
                      Control samples of $D^0\to K^- \pi^+$ decays, with or
                      without an associated pion from a $D^{*+}$ decay, are used
                      to correct for detection asymmetries. The result,
                      $A_{CP}(D^0\to\pi^0\pi^0) = (0.30\pm 0.72\pm 0.20)\\%$,
                      where the first uncertainty is statistical and the second
                      systematic, is consistent with $CP$ symmetry.},
      cin          = {BELLE},
      cid          = {I:(DE-H253)BELLE-20210408},
      pnm          = {611 - Fundamental Particles and Forces (POF4-611) / FLAVOUR
                      - Towards the Construction of the Fundamental Theory of
                      Flavour (267104) / FAIME - Flavour Anomalies with advanced
                      particle Identification MEthods (884719) / TAULEPGAMMA -
                      Search for the Lepton Flavour Violating Decay Tau to Lepton
                      + Gamma at the Belle II Experiment (101026516) / JENNIFER2 -
                      Japan and Europe Network for Neutrino and Intensity Frontier
                      Experimental Research 2 (822070)},
      pid          = {G:(DE-HGF)POF4-611 / G:(EU-Grant)267104 /
                      G:(EU-Grant)884719 / G:(EU-Grant)101026516 /
                      G:(EU-Grant)822070},
      experiment   = {EXP:(DE-H253)BELLE-20150101},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {2505.02912},
      howpublished = {arXiv:2505.02912},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2505.02912;\%\%$},
      doi          = {10.3204/PUBDB-2025-01848},
      url          = {https://bib-pubdb1.desy.de/record/630143},
}

guest :: login PUBDB
		Search		Submit		Personalize Your alerts Your baskets Your searches		Help