Measurements of $q^2$ Moments of Inclusive $B \rightarrow X_c \ell^+ \nu_{\ell}$ Decays with Hadronic Tagging

+lepton%2B+neutrino+anything%22&type=SU">B --> lepton+ neutrino anything, electron positron: annihilation, High Energy Physics - Experiment, lepton: flavor: universality, KEK-B, statistical analysis, final-state interaction [radiation], quantum electrodynamics, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, heavy quark, hadronic decay [B], violation [universality], High Energy Physics::Phenomenology, momentum transfer, 13.20.-v, 12.15.Hh, electron positron: colliding beams, decay modes [B], flavor: universality [lepton], High Energy Physics - Phenomenology, muon: final state, radiation: final-state interaction, CKM matrix, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], final state [muon], B: decay modes, electroproduction [Upsilon(10570)], colliding beams [electron positron], High Energy Physics::Experiment, semileptonic decay [B], universality: violation, experimental results -->
Popis: doi:10.1103/PhysRevD.104.112011
We present the measurement of the first to fourth order moments of the four-momentum transfer squared, $q^2$, of inclusive $B \rightarrow X_c \ell^+ \nu_{\ell}$ decays using the full Belle data set of 711 $\mathrm{fb}^{-1}$ of integrated luminosity at the $\Upsilon(4S)$ resonance where $\ell = e, \mu$. The determination of these moments and their systematic uncertainties open new pathways to determine the absolute value of the CKM matrix element $V_{cb}$ using a reduced set of matrix elements of the heavy quark expansion. In order to identify and reconstruct the $X_c$ system, we reconstruct one of the two $B$-mesons using machine learning techniques in fully hadronic decay modes. The moments are measured with progressively increasing threshold selections on $q^2$ starting with a lower value of 3.0 $\mathrm{GeV}^2$ in steps of 0.5 $\mathrm{GeV}^2$ up to a value of 10.0 $\mathrm{GeV}^2$. The measured moments are further unfolded, correcting for reconstruction and selection effects as well as QED final state radiation. We report the moments separately for electron and muon final states and observe no lepton flavor universality violating effects.
Jazyk: English
DOI: 10.1103/PhysRevD.104.112011⟩
DOI: 10.3204/PUBDB-2021-04703
DOI: 10.1103/PhysRevD.104.112011
Přístupová URL adresa: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e3476becb5e4151b910667f70a5df87
https://hal.archives-ouvertes.fr/hal-03507538
Rights: OPEN
Přírůstkové číslo: edsair.doi.dedup.....7e3476becb5e4151b910667f70a5df87
Autor: van Tonder, R., Cao, L., Babu, V., Kwon, Y.-J., Lange, J. S., Laurenza, M., Lee, S. C., Lewis, P., Li, C. H., Li, J., Li, L. K., Li, Y. B., Gioi, L. Li, Behera, P., Libby, J., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Belous, K., Mizuk, R., Mohanty, G. B., Mohanty, S., Mrvar, M., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nisar, N. K., Nishida, S., Bennett, J., Nishimura, K., Ogawa, K., Ogawa, S., Ono, H., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, H., Bessner, M., Park, S.-H., Passeri, A., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Bhardwaj, V., Prim, M. T., Rabusov, A., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Santelj, L., Savinov, V., Schnell, G., Bhuyan, B., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shen, C. P., Shiu, J.-G., Sokolov, A., Solovieva, E., Bilka, T., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Biswal, J., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Vahsen, S. E., Varner, G., Varvell, K. E., Waheed, E., Wang, C. H., Bobrov, A., Wang, E., Wang, M.-Z., Wang, P., Wang, X. L., Watanabe, M., Watanuki, S., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Sutcliffe, W., Bodrov, D., Yin, J. H., Zhang, Z. P., Zhilich, V., Zhukova, V., Belle Collaboration, Borah, J., Bozek, A., Bračko, M., Branchini, P., Budano, A., Campajola, M., Červenkov, D., Chang, M.-C., Chang, P., Welsch, M., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Cho, S.-J., Choi, Y., Choudhury, S., Cinabro, D., Bernlochner, F. U., Cunliffe, S., Das, S., De Nardo, G., De Pietro, G., Dhamija, R., Di Capua, F., Dingfelder, J., Doležal, Z., Dong, T. V., Dubey, S., Adachi, I., Epifanov, D., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Giri, A., Goldenzweig, P., Graziani, E., Gu, T., Aihara, H., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W.-S., Hsu, C.-L., Iijima, T., Asner, D. M., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Jacobs, W. W., Jia, S., Jin, Y., Joo, K. K., Kaliyar, A. B., Kang, K. H., Aushev, T., Karyan, G., Kichimi, H., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, K.-H., Kim, Y.-K., Kinoshita, K., Kodyš, P., Konno, T., Ayad, R., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, M., Kumar, R., Kumara, K., Kuzmin, A.
Přispěvatelé: Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Belle
Jazyk: angličtina
Rok vydání: 2021
Předmět:
electron
data analysis method
Upsilon(10570): electroproduction
B: semileptonic decay
neural network
14.40.Nd
B: hadronic decay
BELLE
annihilation [electron positron]
B --> lepton+ neutrino anything
electron positron: annihilation
High Energy Physics - Experiment
lepton: flavor: universality
KEK-B
statistical analysis
final-state interaction [radiation]
quantum electrodynamics
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
ddc:530
heavy quark
hadronic decay [B]
violation [universality]
High Energy Physics::Phenomenology
momentum transfer
13.20.-v
12.15.Hh
electron positron: colliding beams
decay modes [B]
flavor: universality [lepton]
High Energy Physics - Phenomenology
muon: final state
radiation: final-state interaction
CKM matrix
[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]
final state [muon]
B: decay modes
electroproduction [Upsilon(10570)]
colliding beams [electron positron]
High Energy Physics::Experiment
semileptonic decay [B]
universality: violation
experimental results
Zdroj: Phys.Rev.D
Phys.Rev.D, 2021, 104 (11), pp.112011. ⟨10.1103/PhysRevD.104.112011⟩
Physical review / D 104(11), 112011 (2021). doi:10.1103/PhysRevD.104.112011
DOI: 10.1103/PhysRevD.104.112011⟩
Popis: doi:10.1103/PhysRevD.104.112011
We present the measurement of the first to fourth order moments of the four-momentum transfer squared, $q^2$, of inclusive $B \rightarrow X_c \ell^+ \nu_{\ell}$ decays using the full Belle data set of 711 $\mathrm{fb}^{-1}$ of integrated luminosity at the $\Upsilon(4S)$ resonance where $\ell = e, \mu$. The determination of these moments and their systematic uncertainties open new pathways to determine the absolute value of the CKM matrix element $V_{cb}$ using a reduced set of matrix elements of the heavy quark expansion. In order to identify and reconstruct the $X_c$ system, we reconstruct one of the two $B$-mesons using machine learning techniques in fully hadronic decay modes. The moments are measured with progressively increasing threshold selections on $q^2$ starting with a lower value of 3.0 $\mathrm{GeV}^2$ in steps of 0.5 $\mathrm{GeV}^2$ up to a value of 10.0 $\mathrm{GeV}^2$. The measured moments are further unfolded, correcting for reconstruction and selection effects as well as QED final state radiation. We report the moments separately for electron and muon final states and observe no lepton flavor universality violating effects.
Databáze: OpenAIRE