Measurement of the decay B⁰→π⁻l⁺ν and determination of |Vub|

Ha, H.; Won, E.; Adachi, I.; Aihara, H.; Aziz, T.; Bakich, A. M.; Balagura, V.; Barberio, E.; Bay, A.; Belous, K.; Bhardwaj, V.; Bhuyan, B.; Bischofberger, M.; Bondar, A.; Bozek, A.; Bračko, M.; Browder, T. E.; Chao, Y.; Chen, A.; Chen, P.; Cheon, B. G.; Chiang, C.-C.; Cho, I.-S.; Cho, K.; Choi, K.-S.; Choi, Y.; Dalseno, J.; Danilov, M.; Doležal, Z.; Drutskoy, A.; Dungel, W.; Eidelman, S.; Gabyshev, N.; Golob, B.; Haba, J.; Hayasaka, K.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W.-S.; Hsiung, Y. B.; Hyun, H. J.; Iijima, T.; Inami, K.; Itoh, R.; Iwabuchi, M.; Iwasaki, Y.; Joshi, N. J.; Julius, T.; Kang, J. H.; Kawasaki, T.; Kiesling, C.; Kim, H. J.; Kim, H. O.; Kim, M. J.; Kim, S. K.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Korpar, S.; Križan, P.; Kuhr, T.; Kumita, T.; Kuzmin, A.; Kwon, Y.-J.; Kyeong, S.-H.; Lange, J. S.; Lee, M. J.; Lee, S.-H.; Li, Y.; Limosani, A.; Liu, C.; Liu, Y.; Liventsev, D.; Louvot, R.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mohanty, G. B.; Mori, T.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Neubauer, S.; Nishida, S.; Nishimura, K.; Nitoh, O.; Nozaki, T.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Pakhlov, P.; Pakhlova, G.; Park, C. W.; Park, H.; Park, H. K.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Röhrken, M.; Ryu, S.; Sahoo, H.; Sakai, Y.; Schneider, O.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shen, C. P.; Shiu, J.-G.; Simon, F.; Smerkol, P.; Sohn, Y.-S.; Sokolov, A.; Stanič, S.; Starič, M.; Sumiyoshi, T.; Teramoto, Y.; Trabelsi, K.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Vahsen, S. E.; Varner, G.; Varvell, K. E.; Vossen, A.; Wang, C. H.; Wang, M.-Z.; Wang, P.; Watanabe, M.; Watanabe, Y.; Yamashita, Y.; Zhang, Z. P.; Zhou, P.; Zhulanov, V.; Zivko, T.; Zupanc, A.

doi:10.1103/PhysRevD.83.071101

Measurement of the decay B⁰→π⁻l⁺ν and determination of |V_ub|

Journal Article · Fri Apr 01 00:00:00 EDT 2011 · Physical Review. D, Particles, Fields, Gravitation and Cosmology

DOI:https://doi.org/10.1103/PhysRevD.83.071101· OSTI ID:1100168

Ha, H.; Won, E.; Adachi, I.; Aihara, H.; Aziz, T.; Bakich, A. M.; Balagura, V.; Barberio, E.; Bay, A.; Belous, K.; Bhardwaj, V.; Bhuyan, B.; Bischofberger, M.; Bondar, A.; Bozek, A.; Bračko, M.; Browder, T. E.; Chao, Y.; Chen, A.; Chen, P. more »

We present a measurement of the charmless semileptonic decay B⁰→π⁻l⁺ν using a data sample containing 657×10⁶ BB¯ events collected with the Belle detector at the KEKB asymmetric-energy e⁺e⁻ collider operating near the Υ(4S) resonance. We determine the total branching fraction of the decay, B(B⁰→π⁻l⁺ν) =(1.49±0.04(stat)±0.07(syst))×10⁻⁴. We also report a new precise measurement of the differential decay rate and extract the Cabibbo-Kobayashi-Maskawa matrix element |V_ub| using model-independent and model-dependent approaches. From a simultaneous fit to the measured differential decay rate and lattice QCD results, we obtain |V_ub|=(3.43±0.33)×10⁻³, where the error includes both experimental and theoretical uncertainties.

View Accepted Manuscript (Publisher)

Sponsoring Organization:: USDOE

OSTI ID:: 1100168

Alternate ID(s):: OSTI ID: 21537682

Journal Information:: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology Journal Issue: 7 Vol. 83; ISSN PRVDAQ; ISSN 1550-7998

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

References (37)

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
PHOTOS - a universal Monte Carlo for QED radiative corrections: version 2.0 Barberio, Elisabetta; Wa̧s, Zbigniew Computer Physics Communications, Vol. 79, Issue 2 https://doi.org/10.1016/0010-4655(94)90074-4	journal	April 1994
High-energy-physics event generation with PYTHIA 5.7 and JETSET 7.4 Sjöstrand, Torbjörn Computer Physics Communications, Vol. 82, Issue 1 https://doi.org/10.1016/0010-4655(94)90132-5	journal	August 1994
Heavy-quark symmetry Neubert, Matthias Physics Reports, Vol. 245, Issue 5-6 https://doi.org/10.1016/0370-1573(94)90091-4	journal	September 1994
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
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
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
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
Comment on the heavy→light form factors Becirevic, Damir; Kaidalov, Alexei B. Physics Letters B, Vol. 478, Issue 4 https://doi.org/10.1016/S0370-2693(00)00290-2	journal	April 2000
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
Semileptonic and decays in flavor lattice QCD Okamoto, M.; Aubin, C.; Bernard, C. Nuclear Physics B - Proceedings Supplements, Vol. 140 https://doi.org/10.1016/j.nuclphysbps.2004.11.151	journal	March 2005
Comment on form-factor shape and extraction of \|Vub\| from B→πlν Becher, Thomas; Hill, Richard J. Physics Letters B, Vol. 633, Issue 1 https://doi.org/10.1016/j.physletb.2005.11.063	journal	February 2006
Measurements of branching fractions and q2 distributions for B→πℓν and B→ρℓν decays with B→D(∗)ℓν decay tagging Hokuue, T.; Abe, K.; Abe, K. Physics Letters B, Vol. 648, Issue 2-3 https://doi.org/10.1016/j.physletb.2007.02.067	journal	May 2007
Review of Particle Physics Amsler, C.; Doser, M.; Antonelli, M. Physics Letters B, Vol. 667, Issue 1-5 https://doi.org/10.1016/j.physletb.2008.07.018	journal	September 2008
B → X _u l bar nu _l decay distributions to order α _s Fazio, Fulvia De; Neubert, Matthias Journal of High Energy Physics, Vol. 1999, Issue 06 https://doi.org/10.1088/1126-6708/1999/06/017	journal	June 1999
Statistical Data Analysis Cowan, Glen https://doi.org/10.1093/oso/9780198501565.001.0001	book	March 1998
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
Analyticity, shapes of semileptonic form factors, and B ¯ → π l ν ¯ Boyd, C. Glenn; Savage, Martin J. Physical Review D, Vol. 56, Issue 1 https://doi.org/10.1103/PhysRevD.56.303	journal	July 1997
Study of the q 2 dependence of B → π l ν and of B → ρ ( ω ) l ν and extraction of \| V ub \| Athar, S. B.; Avery, P.; Breva-Newell, L. Physical Review D, Vol. 68, Issue 7 https://doi.org/10.1103/PhysRevD.68.072003	journal	October 2003
New results on B → 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
B d , s → 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
Study of B → π ℓ ν and B → ρ ℓ ν decays and determination of \| V u b \| Aubert, B.; Barate, R.; Boutigny, D. Physical Review D, Vol. 72, Issue 5 https://doi.org/10.1103/PhysRevD.72.051102	journal	September 2005
B meson semileptonic form factors from unquenched lattice QCD Gulez, Emel; Gray, Alan; Wingate, Matthew Physical Review D, Vol. 73, Issue 7 https://doi.org/10.1103/PhysRevD.73.074502	journal	April 2006
Measurements of the B → D * form factors using the decay B ¯ 0 → D * + e − ν ¯ e Aubert, B.; Barate, R.; Boutigny, D. Physical Review D, Vol. 74, Issue 9 https://doi.org/10.1103/PhysRevD.74.092004	journal	November 2006
Moments of the hadronic invariant mass spectrum in B → X c l ν decays at Belle Schwanda, C.; Abe, K.; Adachi, I. Physical Review D, Vol. 75, Issue 3 https://doi.org/10.1103/PhysRevD.75.032005	journal	February 2007
Erratum: B meson semileptonic form factors from unquenched lattice QCD [Phys. Rev. D 73 , 074502 (2006)] Gulez, Emel; Gray, Alan; Wingate, Matthew Physical Review D, Vol. 75, Issue 11 https://doi.org/10.1103/PhysRevD.75.119906	journal	June 2007
B → π l ν semileptonic form factor from three-flavor lattice QCD: A model-independent determination of \| V ub \| Bailey, Jon A.; Bernard, C.; DeTar, C. Physical Review D, Vol. 79, Issue 5 https://doi.org/10.1103/PhysRevD.79.054507	journal	March 2009
Study of B → π l ν and B → ρ l ν decays and determination of \| V u b \| del Amo Sanchez, P.; Lees, J. P.; Poireau, V. Physical Review D, Vol. 83, Issue 3 https://doi.org/10.1103/PhysRevD.83.032007	journal	February 2011
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
Observables for the Analysis of Event Shapes in e + e − Annihilation and Other Processes Fox, Geoffrey C.; Wolfram, Stephen Physical Review Letters, Vol. 41, Issue 23 https://doi.org/10.1103/PhysRevLett.41.1581	journal	December 1978
Constraints on Form Factors for Exclusive Semileptonic Heavy to Light Meson Decays Boyd, C. Glenn; Grinstein, Benjamín; Lebed, Richard F. Physical Review Letters, Vol. 74, Issue 23 https://doi.org/10.1103/PhysRevLett.74.4603	journal	June 1995
Precision Model Independent Determination of \| V ub \| from B → π l ν Arnesen, Christian M.; Grinstein, Benjamin; Rothstein, Ira Z. Physical Review Letters, Vol. 95, Issue 7 https://doi.org/10.1103/PhysRevLett.95.071802	journal	August 2005
Measurement of the B → π l ν Branching Fraction and Determination of \| V u b \| with Tagged B Mesons Aubert, B.; Barate, R.; Bona, M. Physical Review Letters, Vol. 97, Issue 21 https://doi.org/10.1103/PhysRevLett.97.211801	journal	November 2006
Measurement of the B 0 → π − l + ν Form-Factor Shape and Branching Fraction, and Determination of \| V u b \| with a Loose Neutrino Reconstruction Technique Aubert, B.; Bona, M.; Boutigny, D. Physical Review Letters, Vol. 98, Issue 9 https://doi.org/10.1103/PhysRevLett.98.091801	journal	February 2007
Reweighting of the form factors in exclusive $B \rightarrow X \ell \nu_{\ell}$ decays Côté, D.; Brunet, S.; Taras, P. The European Physical Journal C, Vol. 38, Issue 1 https://doi.org/10.1140/epjc/s2004-02018-9	journal	December 2004
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

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