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@ARTICLE{Adachi:630151,
author = {Adachi, I. and Aggarwal, L. and Ahmed, H. and Akopov, N.
and Alhakami, M. and Aloisio, A. and Althubiti, N. and Anh
Ky, N. and Asner, D. M. and Atmacan, H. and Aushev, V. and
Aversano, M. and Ayad, R. and Babu, V. and Baghel, N. K. and
Bambade, P. and Banerjee, Sw. and Barrett, M. and Bartl, M.
and Baudot, J. and Baur, A. and Beaubien, A. and Becker, J.
and Bennett, J. V. and Bertacchi, V. and Bertemes, M. and
Bertholet, E. and Bessner, M. and Bettarini, S. and Bhuyan,
B. and Biswas, D. and Bobrov, A. and Bodrov, D. and Bolz, A.
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 Campagna,
Q. and Campajola, M. and Casarosa, G. and Cecchi, C. and
Cerasoli, J. and Chang, M.-C. and Chang, P. and Cheaib, R.
and Cheema, P. and Cheon, B. G. and Chilikin, K. and
Chirapatpimol, K. and Cho, H.-E. and Cho, K. and Cho, S.-J.
and Choi, S.-K. and Choudhury, S. and Cochran, J. and
Corona, L. and Cui, J. X. and De La Cruz-Burelo, E. and De
La Motte, S. A. and De Nardo, G. and De Pietro, G. and de
Sangro, R. and Destefanis, M. and Dey, S. and Di Capua, F.
and Dingfelder, J. and Doležal, Z. and Domínguez Jiménez,
I. and Dong, T. V. and Dong, X. and Dorigo, M. and Dossett,
D. and Dugic, K. and Dujany, G. and Ecker, P. and Eppelt, J.
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 Ganiev, E. and
Garcia-Hernandez, M. and Garg, R. and Gaudino, G. and Gaur,
V. and Gaz, A. and Gellrich, A. and Ghevondyan, G. and
Ghosh, D. and Ghumaryan, H. and Giakoustidis, G. and
Giordano, R. and Giri, A. and Gironella Gironell, P. and
Glazov, A. 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 Guan, Y. and Gudkova,
K. and Haide, I. and Hara, T. and Harris, C. and Hayasaka,
K. and Hazra, S. and Hearty, C. and Hedges, M. T. and
Heidelbach, A. and de la Cruz, I. Heredia and Hernández
Villanueva, M. and Higuchi, T. and Hoek, M. and Hohmann, M.
and Hoppe, R. and Horak, P. and Hsu, C.-L. and Humair, T.
and Iijima, T. and Inami, K. and Ipsita, N. and Ishikawa, A.
and Itoh, R. and Iwasaki, M. and Jacobi, D. and Jacobs, W.
W. and Jang, E.-J. and Jin, Y. and Johnson, A. and
Junkerkalefeld, H. and Kaleta, M. and Kaliyar, A. B. and
Kandra, J. and Keil, F. and Ketter, C. and Kiesling, C. and
Kim, C.-H. and Kim, D. Y. and Kim, J.-Y. and Kim, K.-H. and
Kim, Y.-K. 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 Kuhr, T. and Kulii, Y. and Kumar, R. and
Kumara, K. and Kunigo, T. and Kuzmin, A. and Kwon, Y.-J. and
Lacaprara, S. and Lalwani, K. and Lam, T. and Lanceri, L.
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, 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 Liu, M. H. and Liu, Q.
Y. and Liu, Z. Q. and Liventsev, D. and Longo, S. and Lueck,
T. 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 Martini, A. and Martinov,
T. and Massaccesi, L. and Masuda, M. and Matsuoka, K. and
Matvienko, D. 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 Miyake, H. and Mohanty, G. B. and Mondal, S. and
Moneta, S. and Moser, H.-G. and Mussa, R. and Nakamura, I.
and Nakao, M. and Nakazawa, Y. and Naruki, M. and Natkaniec,
Z. and Natochii, A. and Nayak, M. and Nazaryan, G. and Neu,
M. and Nishida, S. and Ogawa, S. and Okubo, R. and Ono, H.
and Onuki, Y. 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 Pedlar, T. K. and Peruzzi, I.
and Peschke, R. and Pestotnik, R. and Piilonen, L. E. and
Podesta-Lerma, P. L. M. and Podobnik, T. and Pokharel, S.
and Praz, C. and Prell, S. and Prencipe, E. and Prim, M. T.
and Purwar, H. and Raiz, S. 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 Roehrken, M. and Roney, J. M. and Rostomyan, A. and
Rout, N. and Sakai, Y. and Sanders, D. A. and Sandilya, S.
and Santelj, L. and Savinov, V. and Scavino, B. 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 Song, W. and Starič, M. and
Stavroulakis, P. and Stefkova, S. and Stroili, R. and
Strube, J. and Sumihama, M. and Sumisawa, K. and
Suwonjandee, N. and Svidras, H. and Takizawa, M. and
Tamponi, U. and Tanida, K. and Tenchini, F. and Thaller, A.
and Tittel, O. and Tiwary, R. and Torassa, E. and Trabelsi,
K. and Tsaklidis, I. and Ueda, I. and Uglov, T. and Unger,
K. and Unno, Y. and Uno, K. and Uno, S. and Urquijo, P. and
Ushiroda, Y. and Vahsen, S. E. and van Tonder, R. and
Varvell, K. E. and Veronesi, M. and Vinokurova, A. and
Vismaya, V. S. and Vitale, L. and Vobbilisetti, V. and
Volpe, R. and Wakai, M. and Wallner, S. and Wang, M.-Z. and
Warburton, A. and Watanabe, M. and Watanuki, S. and Wessel,
C. and Won, E. and Xu, X. P. and Yabsley, B. D. and Yamada,
S. and Yan, W. and Yelton, J. and Yin, J. H. and Yoshihara,
K. and Yuan, J. and Yusa, Y. and Zani, L. 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 branching fraction, polarization, and
time-dependent ${CP}$ asymmetry in ${B}^0 \to \rho^+\rho^-$
decays and constraint on the {CKM} angle $\phi_2$},
journal = {Physical review / D},
volume = {111},
number = {9},
issn = {2470-0010},
address = {Ridge, NY},
publisher = {American Physical Society},
reportid = {PUBDB-2025-01856, arXiv:2412.19624. Belle II preprint
2024-024. KEK preprint 2024-23},
pages = {092001},
year = {2025},
note = {Phys. Rev. D 111, 092001, 2025},
abstract = {We present a measurement of the branching fraction and
fraction of longitudinal polarization of $B^0 \to \rho^+
\rho^-$ decays, which have two $\pi^0$'s in the final state.
We also measure time-dependent $CP$ violation parameters for
decays into longitudinally polarized $\rho^+ \rho^-$ pairs.
This analysis is based on a data sample containing
$(387\pm6) \times 10^6$\BBbar pairs collected with the
Belle~II detector at the SuperKEKB asymmetric-energy
$e^+e^-$ collider in 2019-2022. We obtain
${B}(B^0\to\rho^+\rho^-) = (2.88 ^{+0.23}_{-0.22}
{}^{+0.29}_{-0.27}) \times 10^{-5}, f_{L} = 0.921
^{+0.024}_{-0.025} {}^{+0.017}_{-0.015}$, $S =
-0.26\pm0.19\pm0.08$, and $C =
-0.02\pm0.12^{+0.06}_{-0.05}$, where the first uncertainties
are statistical and the second are systematic. We use these
results to perform an isospin analysis to constrain the CKM
angle $\phi_2$ and obtain two solutions; the result
consistent with other Standard Model constraints is $\phi_2
= (92.6^{+4.5}_{-4.8})^\circ$.},
cin = {BELLE},
ddc = {530},
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) / NIOBE -
Non-Leptonic Three-Body B Decays: Theory and Phenomenology
(700525) / 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)700525 /
G:(EU-Grant)101026516 / G:(EU-Grant)822070},
experiment = {EXP:(DE-H253)BELLE-20150101},
typ = {PUB:(DE-HGF)16},
eprint = {2412.19624},
howpublished = {arXiv:2412.19624},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2412.19624;\%\%$},
UT = {WOS:001498351200001},
doi = {10.1103/PhysRevD.111.092001},
url = {https://bib-pubdb1.desy.de/record/630151},
}
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