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@ARTICLE{Adachi:603982,
author = {Adachi, I. and Adamczyk, K. and Aggarwal, L. and Ahmed, H.
and Aihara, H. and Akopov, N. and Aloisio, A. and Anh Ky, N.
and Asner, D. M. and Atmacan, H. and Aushev, T. and Aushev,
V. and Aversano, M. and Ayad, R. and Babu, V. and Bae, H.
and Bahinipati, S. and Bambade, P. and Banerjee, Sw. and
Bansal, S. and Barrett, M. and Baudot, J. and Bauer, M. 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 Bierwirth,
L. and Bilka, T. and Bilokin, S. and Biswas, D. and Bobrov,
A. and Bodrov, D. and Bolz, A. and Bondar, A. and Borah, J.
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 Cerasoli, J. and Chang, M.-C. and Chang, P. and Cheaib,
R. and Cheema, P. and Chen, C. 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 Cremaldi, L. M. and Das, S.
and Dattola, F. and De La Cruz-Burelo, E. and De La Motte,
S. A. and De Nardo, G. and De Nuccio, M. and De Pietro, G.
and de Sangro, R. and Destefanis, M. and Dhamija, R. and Di
Canto, A. and Di Capua, F. and Dingfelder, J. and Doležal,
Z. and Domínguez Jiménez, I. and Dong, T. V. and Dorigo,
M. and Dort, K. and Dreyer, S. and Dubey, S. and Dujany, G.
and Ecker, P. and Eliachevitch, M. and Epifanov, D. and
Feichtinger, P. and Ferber, T. and Ferlewicz, D. and
Fillinger, T. and Finck, C. and Finocchiaro, G. and Fodor,
A. and Forti, F. and Frey, A. 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
Glazov, A. and Gobbo, B. and Godang, R. and Gogota, O. and
Goldenzweig, P. and Gradl, W. and Grammatico, T. and
Graziani, E. and Greenwald, D. and Gruberová, Z. and Gu, T.
and Guan, Y. and Gudkova, K. and Han, Y. and Hara, K. and
Hara, T. and Hayasaka, K. and Hayashii, H. 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 Hill, E. C. and Hoek, M. and Hohmann, M. and Horak,
P. and Hsu, C.-L. and Humair, T. 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 Jacobs, W. W.
and Jaffe, D. E. and Jang, E.-J. and Ji, Q. P. and Jia, S.
and Jin, Y. and Joo, K. K. and Junkerkalefeld, H. and
Kakuno, H. and Kaleta, M. and Kalita, D. and Kaliyar, A. B.
and Kandra, J. and Kang, K. H. and Kang, S. and Kawasaki, T.
and Keil, F. and Kiesling, C. and Kim, C.-H. and Kim, D. Y.
and Kim, K.-H. and Kim, Y.-K. and Kindo, H. and Kinoshita,
K. and Kodyš, P. and Koga, T. and Kohani, S. and Kojima, K.
and Konno, T. and Korobov, A. and Korpar, S. and Kovalenko,
E. and Kowalewski, R. and Kraetzschmar, T. M. G. and
Križan, P. and Krokovny, P. and Kuhr, T. and Kulii, Y. and
Kumar, J. and Kumar, M. and Kumar, R. and Kumara, K. and
Kunigo, T. and Kuzmin, A. and Kwon, Y.-J. and Lacaprara, S.
and Lai, Y.-T. and Lam, T. and Lanceri, L. and Lange, J. S.
and Laurenza, M. and Leboucher, R. and Le Diberder, F. R.
and Lee, M. J. and Levit, D. and Lewis, P. M. and Li, C. and
Li, L. K. and Li, Y. and Li, Y. B. and Libby, J. and Liu, Q.
Y. and Liu, Z. Q. and Liventsev, D. and Longo, S. and Lueck,
T. and Lyu, C. and Ma, Y. and Maggiora, M. and Maharana, S.
P. and Maiti, R. and Maity, S. and Mancinelli, G. and
Manfredi, R. and Manoni, E. and Manthei, A. C. and
Mantovano, M. and Marcantonio, D. and Marcello, S. and
Marinas, C. and Martel, L. and Martellini, C. and Martini,
A. and Martinov, T. and Massaccesi, L. and Masuda, M. and
Matsuda, T. and Matsuoka, K. and Matvienko, D. and Maurya,
S. K. and McKenna, J. A. and Mehta, R. and Meier, F. and
Merola, M. and Metzner, F. and Milesi, M. and Miller, C. and
Mirra, M. and Miyabayashi, K. and Miyake, H. and Mizuk, R.
and Mohanty, G. B. and Molina-Gonzalez, N. and Mondal, S.
and Moneta, S. and Moser, H.-G. and Mrvar, M. and Mussa, R.
and Nakamura, I. and Nakamura, K. R. and Nakao, M. and
Nakazawa, Y. and Narimani Charan, A. and Naruki, M. and
Narwal, D. and Natkaniec, Z. and Natochii, A. and Nayak, L.
and Nayak, M. and Nazaryan, G. and Neu, M. and Niebuhr, C.
and Nishida, S. and Ogawa, S. and Onishchuk, Y. and Ono, H.
and Onuki, Y. and Oskin, P. and Otani, F. and Pakhlov, P.
and Pakhlova, G. and Paladino, A. and Panta, A. and Paoloni,
E. and Pardi, S. and Parham, K. and Park, H. and Park, S.-H.
and Paschen, B. and Passeri, A. and Patra, S. and Paul, S.
and Pedlar, T. K. and Peschke, R. and Pestotnik, R. and
Pham, F. and Piccolo, M. and Piilonen, L. E. and Angioni, G.
Pinna 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 Rados, P. and Raeuber, G. and
Raiz, S. and Rauls, N. and Reif, M. and Reiter, S. and
Remnev, M. and Ripp-Baudot, I. and Rizzo, G. and Robertson,
S. H. and Roehrken, M. and Roney, J. M. and Rostomyan, A.
and Rout, N. and Russo, G. and Sanders, D. A. and Sandilya,
S. and Sangal, A. and Santelj, L. and Sato, Y. and Savinov,
V. and Scavino, B. and Schmitt, C. 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 Sharma, C. and Shi, X. D. and Shillington, T. and
Shimasaki, T. and Shiu, J.-G. and Shtol, D. and Sibidanov,
A. and Simon, F. and Singh, J. B. and Skorupa, J. and Smith,
K. 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 Sumisawa, K.
and Sutcliffe, W. and Svidras, H. and Takahashi, M. and
Takizawa, M. and Tamponi, U. and Tanaka, S. and Tanida, K.
and Tenchini, F. and Tittel, O. and Tiwary, R. and Tonelli,
D. and Torassa, E. and Trabelsi, K. and Tsaklidis, I. and
Uchida, M. and Ueda, I. and Uematsu, Y. 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 Wach, B. and Wakai, M. and Wallner, S. and
Wang, E. and Wang, M.-Z. and Wang, X. L. and Wang, Z. and
Warburton, A. and Watanabe, M. and Watanuki, S. and Wessel,
C. and Wiechczynski, J. and Won, E. and Xu, X. P. and
Yabsley, B. D. and Yamada, S. and Yang, S. B. and Yelton, J.
and Yin, J. H. and Yoshihara, K. and Yuan, C. Z. and Yusa,
Y. and Zhang, B. and Zhang, Y. and Zhilich, V. and Zhou, Q.
D. and Zhou, X. Y. and Zhukova, V. I. and Žlebčík, R.},
collaboration = {Belle-{II Collaboration}},
title = {{A} test of lepton flavor universality with a measurement
of ${R}({D}^{*})$ using hadronic ${B}$ tagging at the
{B}elle {II} experiment},
reportid = {PUBDB-2024-00947, arXiv:2401.02840},
year = {2024},
note = {16 pages, 17 figures, submitted to PRD},
abstract = {The ratio of branching fractions $R(D^{*}) =
\mathcal{B}(\overline{B} \rightarrow D^{*} \tau^{-}
\overline{\nu}_{\tau})$/$\mathcal{B} (\overline{B}
\rightarrow D^{*} \ell^{-} \overline{\nu}_{\ell})$, where
$\ell$ is an electron or muon, is measured using a Belle~II
data sample with an integrated luminosity of
$189~\mathrm{fb}^{-1}$ at the SuperKEKB asymmetric-energy
$e^{+} e^{-}$ collider. Data is collected at the
$\Upsilon(\mathrm{4S})$ resonance, and one $B$ meson in the
$\Upsilon(\mathrm{4S})\rightarrow B\overline{B}$ decay is
fully reconstructed in hadronic decay modes. The
accompanying signal $B$ meson is reconstructed as
$\overline{B}\rightarrow D^{*}
\tau^{-}\overline{\nu}_{\tau}$ using leptonic $\tau$ decays.
The normalization decay, $\overline{B}\rightarrow D^{*}
\ell^{-} \overline{\nu}_{\ell}$, where $\ell$ is an electron
or muon, produces the same observable final state particles.
The ratio of branching fractions is extracted in a
simultaneous fit to two signal-discriminating variables in
both channels and yields $R(D^{*}) =
0.262~_{-0.039}^{+0.041}(\mathrm{stat})~_{-0.032}^{+0.035}(\mathrm{syst})$.
This result is consistent with the current world average and
with standard model predictions.},
keywords = {electron positron: annihilation (INSPIRE) / electron
positron: colliding beams (INSPIRE) / Upsilon(10570):
electroproduction (INSPIRE) / B: pair production (INSPIRE) /
branching ratio: ratio: measured (INSPIRE) / B: branching
ratio (INSPIRE) / lepton: flavor: universality (INSPIRE) /
B+: leptonic decay (INSPIRE) / electron (INSPIRE) / muon
(INSPIRE) / tau: leptonic decay (INSPIRE) / D*(2010)
(INSPIRE) / BELLE (INSPIRE) / decay modes (INSPIRE) / B0:
hadronic decay (INSPIRE) / B-: hadronic decay (INSPIRE) /
KEK-B (INSPIRE) / experimental results (INSPIRE) / anti-B
--> D*(2010) tau- antineutrino/tau (INSPIRE) / anti-B -->
D*(2010) electron antineutrino/e (INSPIRE) / anti-B -->
D*(2010) muon- antineutrino/mu (INSPIRE)},
cin = {BELLE},
cid = {I:(DE-H253)BELLE-20210408},
pnm = {611 - Fundamental Particles and Forces (POF4-611)},
pid = {G:(DE-HGF)POF4-611},
experiment = {EXP:(DE-H253)BELLE-20150101},
typ = {PUB:(DE-HGF)25},
eprint = {2401.02840},
howpublished = {arXiv:2401.02840},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2401.02840;\%\%$},
doi = {10.3204/PUBDB-2024-00947},
url = {https://bib-pubdb1.desy.de/record/603982},
}
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