Measurement of the decays B→ηℓνℓ and B→η'ℓνℓ in fully reconstructed events at Belle

Beleño, C.; Dingfelder, J.; Urquijo, P.; Aihara, H.; Al Said, S.; Asner, D. M.; Aushev, T.; Ayad, R.; Babu, V.; Badhrees, I.; Bakich, A. M.; Bansal, V.; Behera, P.; Bhuyan, B.; Biswal, J.; Bobrov, A.; Bračko, M.; Browder, T. E.; Červenkov, D.; Chen, A.; Cheon, B. G.; Chistov, R.; Cho, K.; Choi, S. -K.; Choi, Y.; Cinabro, D.; Dash, N.; Di Carlo, S.; Doležal, Z.; Eidelman, S.; Farhat, H.; Fast, J. E.; Ferber, T.; Frey, A.; Fulsom, B. G.; Gaur, V.; Gabyshev, N.; Garmash, A.; Gillard, R.; Goldenzweig, P.; Hara, T.; Hayashii, H.; Hedges, M. T.; Hou, W. -S.; Iijima, T.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Jeon, H. B.; Jin, Y.; Joffe, D.; Joo, K. K.; Kang, K. H.; Karyan, G.; Kim, D. Y.; Kim, J. B.; Kim, K. T.; Kim, M. J.; Kim, Y. J.; Kinoshita, K.; Kodyš, P.; Korpar, S.; Kotchetkov, D.; Križan, P.; Krokovny, P.; Kulasiri, R.; Lee, I. S.; Li, Y.; Li Gioi, L.; Libby, J.; Liventsev, D.; Lubej, M.; Luo, T.; Masuda, M.; Matsuda, T.; Matvienko, D.; Miyabayashi, K.; Miyata, H.; Moon, H. K.; Mori, T.; Nakano, E.; Nakao, M.; Nanut, T.; Nath, K. J.; Nayak, M.; Nishida, S.; Ogawa, S.; Okuno, S.; Ono, H.; Pal, B.; Park, C. -S.; Park, C. W.; Park, H.; Pedlar, T. K.; Pestotnik, R.; Piilonen, L. E.; Ritter, M.; Sakai, Y.; Salehi, M.; Sandilya, S.; Sanuki, T.; Schneider, O.; Schnell, G.; Schwanda, C.; Seino, Y.; Senyo, K.; Seon, O.; Sevior, M. E.; Shebalin, V.; Shibata, T. -A.; Shiu, J. -G.; Simon, F.; Solovieva, E.; Starič, M.; Sumiyoshi, T.; Takizawa, M.; Tamponi, U.; Tanida, K.; Tenchini, F.; Uchida, M.; Uglov, T.; Unno, Y.; Uno, S.; Usov, Y.; Van Hulse, C.; Varner, G.; Varvell, K. E.; Vinokurova, A.; Vorobyev, V.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Watanabe, Y.; Widmann, E.; Won, E.; Yamashita, Y.; Ye, H.; Yelton, J.; Yook, Y.; Zhang, Z. P.; Zhilich, V.; Zhukova, V.; Zhulanov, V.; Zupanc, A.

doi:10.1103/PhysRevD.96.091102

Title: Measurement of the decays $B \to η ℓ ν_{ℓ}$ and $B \to η^{'} ℓ ν_{ℓ}$ in fully reconstructed events at Belle

Journal Article · Tue Nov 28 00:00:00 EST 2017 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.96.091102· OSTI ID:1594348

Beleño, C.; Dingfelder, J.; Urquijo, P.; Aihara, H.; Al Said, S.; Asner, D. M.; Aushev, T.; Ayad, R.; Babu, V.; Badhrees, I.; Bakich, A. M.; Bansal, V.; Behera, P.; Bhuyan, B.; Biswal, J.; Bobrov, A.; Bračko, M.; Browder, T. E.; Červenkov, D.; Chen, A. more »

We report branching fraction measurements of the decays B⁺ → ηℓ⁺νℓ and B⁺ → η'ℓ⁺νℓ based on 711 fb^–1 of data collected near the Υ(4S) resonance with the Belle experiment at the KEKB asymmetric-energy e⁺e^– collider. This data sample contains 772 million BB¯ events. One of the two B mesons is fully reconstructed in a hadronic decay mode. Among the remaining (“signal-B”) daughters, we search for the η meson in two decay channels, η → γγ and η → π⁺π^–π⁰, and reconstruct the η' meson in η' → ηπ⁺π^– with subsequent decay of the η into γγ. Combining the two η modes and using an extended maximum likelihood, the B⁺ → ηℓ⁺νℓ branching fraction is measured to be (4.2 ± 1.1(stat.) ± 0.3(syst.)) × 10^–5. For B⁺ → η'ℓ⁺νℓ, we observe no significant signal and set an upper limit of 0.72 × 10^–4 at 90% confidence level.

View Accepted Manuscript (DOE)

View Accepted Manuscript (Publisher)

Cite

Export

Save

Research Organization:: Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Contributing Organization:: Belle Collaboration

Grant/Contract Number:: SC0009973

OSTI ID:: 1594348

Alternate ID(s):: OSTI ID: 1410482

Journal Information:: Physical Review D, Vol. 96, Issue 9; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 4 works

Citation information provided by
Web of Science

References (36)

Unitary Symmetry and Leptonic Decays Cabibbo, Nicola Physical Review Letters, Vol. 10, Issue 12 https://doi.org/10.1103/PhysRevLett.10.531	journal	June 1963
Review of Particle Physics Olive, K. A. Chinese Physics C, Vol. 40, Issue 10 https://doi.org/10.1088/1674-1137/40/10/100001	journal	October 2016
Study of exclusive charmless semileptonic $B$ decays and extraction of $\| V_{u b} \|$ at CLEO Asner, D. M.; Edwards, K. W.; Briere, R. A. Physical Review D, Vol. 76, Issue 1 https://doi.org/10.1103/PhysRevD.76.012007	journal	July 2007
The EvtGen particle decay simulation package Lange, David J. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 462, Issue 1-2 https://doi.org/10.1016/S0168-9002(01)00089-4	journal	April 2001
B→η(′)lν decays and the flavor-singlet form factors Kim, C. S.; Oh, Sechul; Yu, Chaehyun Physics Letters B, Vol. 590, Issue 3-4 https://doi.org/10.1016/j.physletb.2004.03.083	journal	June 2004
$B_{d, s} \to ρ, ω, K^{*}, ϕ$ decay form factors from light-cone sum rules reexamined Ball, Patricia; Zwicky, Roman Physical Review D, Vol. 71, Issue 1 https://doi.org/10.1103/PhysRevD.71.014029	journal	January 2005
Semileptonic meson decays in the quark model: An update Scora, Daryl; Isgur, Nathan Physical Review D, Vol. 52, Issue 5 https://doi.org/10.1103/PhysRevD.52.2783	journal	September 1995
The NeuroBayes neural network package Feindt, M.; Kerzel, U. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 559, Issue 1 https://doi.org/10.1016/j.nima.2005.11.166	journal	April 2006
A hierarchical NeuroBayes-based algorithm for full reconstruction of B mesons at B factories Feindt, M.; Keller, F.; Kreps, M. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 654, Issue 1 https://doi.org/10.1016/j.nima.2011.06.008	journal	October 2011
Status of the Belle silicon vertex detector Natkaniec, Z.; Aihara, H.; Asano, Y. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 560, Issue 1 https://doi.org/10.1016/j.nima.2005.11.228	journal	May 2006
Measurement of inclusive production of neutral pions from $Υ (4 S)$ decays Abe, K.; Abe, K.; Adachi, I. Physical Review D, Vol. 64, Issue 7 https://doi.org/10.1103/PhysRevD.64.072001	journal	September 2001
Study of semileptonic decays $B^{\pm} \to η^{(')} l ν$ Kim, C. S.; Yang, Ya-Dong Physical Review D, Vol. 65, Issue 1 https://doi.org/10.1103/PhysRevD.65.017501	journal	December 2001
C P -Violation in the Renormalizable Theory of Weak Interaction Kobayashi, Makoto; Maskawa, Toshihide Progress of Theoretical Physics, Vol. 49, Issue 2 https://doi.org/10.1143/PTP.49.652	journal	February 1973
Study of exclusive $B \to X_{u} ℓ ν$ decays and extraction of $\| V_{u b} \|$ using full reconstruction tagging at the Belle experiment Sibidanov, A.; Varvell, K. E.; Adachi, I. Physical Review D, Vol. 88, Issue 3 https://doi.org/10.1103/PhysRevD.88.032005	journal	August 2013
Measurements of $B \to {π, η, η^{'}} l ν_{l}$ Branching Fractions and Determination of $\| V_{u b} \|$ with Semileptonically Tagged $B$ Mesons Aubert, B.; Bona, M.; Karyotakis, Y. Physical Review Letters, Vol. 101, Issue 8 https://doi.org/10.1103/PhysRevLett.101.081801	journal	August 2008
Measurement of the $B^{+} \to ω l^{+} ν$ and $B^{+} \to η l^{+} ν$ branching fractions Aubert, B.; Bona, M.; Karyotakis, Y. Physical Review D, Vol. 79, Issue 5 https://doi.org/10.1103/PhysRevD.79.052011	journal	March 2009
Muon identification in the Belle experiment at KEKB Abashian, A.; Abe, K.; Abe, K. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 491, Issue 1-2 https://doi.org/10.1016/S0168-9002(02)01164-6	journal	September 2002
New results on $B \to π, K, η$ decay form factors from light-cone sum rules Ball, Patricia; Zwicky, Roman Physical Review D, Vol. 71, Issue 1 https://doi.org/10.1103/PhysRevD.71.014015	journal	January 2005
Study of Exclusive Charmless Semileptonic $B$ Decays and $\| V_{u b} \|$ Adam, N. E.; Alexander, J. P.; Berkelman, K. Physical Review Letters, Vol. 99, Issue 4 https://doi.org/10.1103/PhysRevLett.99.041802	journal	July 2007
Measurement of the $B^{0} \to π^{-} ℓ^{+} ν$ and $B^{+} \to η^{(')} ℓ^{+} ν$ branching fractions, the $B^{0} \to π^{-} ℓ^{+} ν$ and $B^{+} \to η ℓ^{+} ν$ form-factor shapes, and determination of $\| V_{u b} \|$ del Amo Sanchez, P.; Lees, J. P.; Poireau, V. Physical Review D, Vol. 83, Issue 5 https://doi.org/10.1103/PhysRevD.83.052011	journal	March 2011
Branching fraction and form-factor shape measurements of exclusive charmless semileptonic $B$ decays, and determination of $\| V_{u b} \|$ Lees, J. P.; Poireau, V.; Tisserand, V. Physical Review D, Vol. 86, Issue 9 https://doi.org/10.1103/PhysRevD.86.092004	journal	November 2012
Belle PID Nakano, E. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 494, Issue 1-3 https://doi.org/10.1016/S0168-9002(02)01510-3	journal	November 2002
B → η ^(′) form factors in QCD Ball, Patricia; Jones, Gareth W. Journal of High Energy Physics, Vol. 2007, Issue 08 https://doi.org/10.1088/1126-6708/2007/08/025	journal	August 2007
Overview of the KEKB accelerators Kurokawa, S.; Kikutani, E. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 499, Issue 1 https://doi.org/10.1016/S0168-9002(02)01771-0	journal	February 2003
Fitting using finite Monte Carlo samples Barlow, Roger; Beeston, Christine Computer Physics Communications, Vol. 77, Issue 2 https://doi.org/10.1016/0010-4655(93)90005-W	journal	October 1993
The Belle detector Abashian, A.; Gotow, K.; Morgan, N. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 479, Issue 1 https://doi.org/10.1016/S0168-9002(01)02013-7	journal	February 2002
Electron identification in Belle Hanagaki, K.; Kakuno, H.; Ikeda, H. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 485, Issue 3 https://doi.org/10.1016/S0168-9002(01)02113-1	journal	June 2002
Unified approach to the classical statistical analysis of small signals Feldman, Gary J.; Cousins, Robert D. Physical Review D, Vol. 57, Issue 7 https://doi.org/10.1103/PhysRevD.57.3873	journal	April 1998
Detection of a particle shower at the Glashow resonance with IceCube Aartsen, M. G.; Abbasi, R.; Ackermann, M. Nature, Vol. 591, Issue 7849 https://doi.org/10.1038/s41586-021-03256-1	journal	March 2021
Review of Particle Physics Group, Particle Data; Amsler, C.; Doser, M. Elsevier https://doi.org/10.5167/uzh-11249	text	January 2008
Review of Particle Physics Tanabashi, M.; Hagiwara, K.; Hikasa, K. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2018-03100	text	January 2018
Measurement of the B0→π-ℓ+ν and B+→η(′)ℓ+ν branching fractions, the B0→π-ℓ+ν and B+→ηℓ+ν form-factor shapes, and determination of \|Vub\| Collaboration, Babar; Del Amo Sanchez, P.; Snoek, H. L. American Physical Society https://doi.org/10.5167/uzh-58699	text	January 2011
Status of the Belle Silicon Vertex Detector Kibayashi, A. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 569, Issue 1 https://doi.org/10.1016/j.nima.2006.09.002	journal	December 2006
Review of Particle Physics Beringer, J.; Arguin, J.; Barnett, R. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/phppubdb-24149	text	January 2012
A Hierarchical NeuroBayes-based Algorithm for Full Reconstruction of B Mesons at B Factories Feindt, Michael; Keller, Fabian; Kreps, Michal arXiv https://doi.org/10.48550/arxiv.1102.3876	text	January 2011
Electron Identification in Belle Hanagaki, K.; Kakuno, H.; Ikeda, H. arXiv https://doi.org/10.48550/arxiv.hep-ex/0108044	text	January 2001

Similar Records

Sensitivity of the

η^{(')} \to π^{0} γ γ

and

η^{'} \to η γ γ

decays to a sub-GeV leptophobic

U (1)_{B}

boson

Journal Article · Thu Dec 08 00:00:00 EST 2022 · Physical Review D · OSTI ID:1594348

Escribano, Rafel; Gonzàlez-Solís, Sergi; Royo, Emilio

Measurement of the matrix elements for the decays

η^{'} \to η π^{+} π^{-}

and

η^{'} \to η π^{0} π^{0}

Journal Article · Wed Jan 10 00:00:00 EST 2018 · Physical Review D · OSTI ID:1594348

Ablikim, M.; Achasov, M. N.; Ahmed, S.; +440 more

Measurement of the branching ratio of

{\bar{B}}^{0} \to D^{* +} τ^{-} {\bar{ν}}_{τ}

relative to

{\bar{B}}^{0} \to D^{* +} ℓ^{-} {\bar{ν}}_{ℓ}

decays with a semileptonic tagging method

Journal Article · Thu Oct 27 00:00:00 EDT 2016 · Physical Review D · OSTI ID:1594348

Sato, Y.; Iijima, T.; Adamczyk, K.; +179 more

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Branching fraction
Leptonic semileptonic & radiative decays
Particle decays
Bottom mesons
Leptons
Light mesons
Lepton colliders
Precision measurements

Title: Measurement of the decays B → η ℓ ν ℓ and B → η ' ℓ ν ℓ in fully reconstructed events at Belle

Citation Formats

References (36)

Similar Records

Related Subjects

Title: Measurement of the decays $B \to η ℓ ν_{ℓ}$ and $B \to η^{'} ℓ ν_{ℓ}$ in fully reconstructed events at Belle