Measurement of the decay<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>B</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:mo>→</mml:mo><mml:msup><mml:mi>π</mml:mi><mml:mo>−</mml:mo></mml:msup><mml:msup><mml:mi>ℓ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:mi>ν</mml:mi></mml:math>and determination of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mo stretchy="false">|</mml:mo><mml:msub><mml:mi>V</mml:mi><mml:mrow><mml:mi>u</mml:mi><mml:mi>b<

Ha, H.; Won, E.; Adachi, I.; Aihara, H.; Aziz, T.; Bakich, A. M.; Balagura, V.; Barberio, E. L.; Bay, A.; Belous, K.; Bhardwaj, V.; Bhuyan, B.; Bischofberger, M.; Bondar, A.; Bożek, A.; Bračko, M.; Browder, T. E.; Chào, Y.; Chen, A.; Chen, P.; Cheon, B. G.; Chiang, C. C.; Cho, I. S.; Cho, K.; Choi, Ki-Seok; Choi, Young-Il; 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.; 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, 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, Takashi; 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.; 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.; 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, Peng; Zhulanov, V.; Živko, T.; Zupanc, A.

doi:10.1103/physrevd.83.071101

Cited by 114 publications

(138 citation statements)

References 40 publications

Supporting

Mentioning

131

Contrasting

Order By: Relevance

“…Again, the most recent result of B(B − → τ − ν τ ) = (12.5 ± 2.8 ± 2.7) × 10 −5 reported by Belle [13] is consistent with their earlier result. Moreover, the measured value of B(B 0 → π + l − ν l ) = (14.6 ± 0.7) × 10 −5 [14][15][16] is consistent with the SM prediction. The Belle experiment recently reported an upper limit on the total rate B(B 0 → π − τ ν) < 2.5 × 10 −4 [17] which is close to the SM prediction [18].…”

Section: Introductionsupporting

confidence: 67%

Λb→(Λc, p)
Dutta
¹

2016
Phys. Rev. D
60
3
39
0
View full text Add to dashboard Cite

Section: Introductionsupporting

confidence: 67%

Λb→(Λc, p)
Dutta
¹

2016
Phys. Rev. D
60
3
39
0
View full text Add to dashboard Cite

“…l ' is the most reliable exclusive channel to extract jV ub j. There is steady progress in measuring the branching fraction and q 2 distribution for l ¼ , e (see [2][3][4] for the latest results). The hadronic vector form factor f þ B ðq 2 Þ and its scalar counterpart f 0 B ðq 2 Þ relevant for this decay are defined as 1…”

Section: Introductionmentioning

confidence: 99%

B→πℓνℓwidth and|Vub|from QCD light-cone sum rules

et al. 2011

View full text Add to dashboard Cite

We employ the B ! form factors obtained from QCD light-cone sum rules and calculate the B ! ' ' width (' ¼ e, ) in units of 1=jV ub j 2 , integrated over the region of accessible momentum transfers, 0 q 2 12:0 GeV 2 . Using the most recent BABAR Collaboration measurements we extract jV ub j ¼ ð3:50 þ0:38 À0:33 j th AE 0:11j exp Þ Â 10 À3 . The sum rule results for the form factors, taken as an input for a z-series parametrization, yield the q 2 shape in the whole semileptonic region of B ! ' ' . We also present the charged lepton energy spectrum in this decay. Furthermore, the current situation with B ! is discussed from the QCD point of view. We suggest using the ratio of the B ! and B ! ' ' ð' ¼ ; eÞ widths as an additional test of the standard model. The sensitivity of this observable to new physics is illustrated by including a charged Higgs-boson contribution in the semileptonic decay amplitude.

show abstract

“…The hadronic-tag analysis by Belle [524] provides results for B 0 → π − + ν and B + → π 0 + ν separately, but not for the combination of both channels. In the untagged analysis by Belle [523], only B 0 → π − + ν decays were measured. The experimental measurements use different binnings in q 2 , but have matching bin edges, which allows them to be easily combined.…”

Section: B → πLν Branching Fraction and Q 2 Spectrummentioning

confidence: 99%

“…Currently, the four most precise measurements of the differential B → πlν decay rate as a function of the four-momentum transfer squared, q 2 , from BaBar and Belle [523][524][525][526] are used to obtain an average q 2 spectrum and an average for the total branching fraction. The measurements are presented in Fig.…”

Section: B → πLν Branching Fraction and Q 2 Spectrummentioning

confidence: 99%

Averages of b-hadron, c-hadron, and $$\tau $$ τ -lepton properties as of summer 2016

et al. 2017

Self Cite

View full text Add to dashboard Cite

This paper reports world averages of measurements of b-hadron, c-hadron, and τ -lepton properties obtained by the Heavy Flavour Averaging Group using results available before April 2021. In rare cases, significant results obtained several months later are also used. For the averaging, common input parameters used in the various analyses are adjusted (rescaled) to common values, and known correlations are taken into account. The averages include branching fractions, lifetimes, neutral meson mixing parameters, CP violation parameters, parameters of semileptonic decays, and Cabibbo-Kobayashi-Maskawa matrix elements. Selected world averages -continued from previous page. ∆Γ d /Γ d 0.001 ± 0.010 |q d /p d | 1.0010 ± 0.0008 ∆m s 17.765 ± 0.006 ps −1 ∆Γ s +0.084 ± 0.005 ps −1 |q s /p s | 1.0003 ± 0.0014 φ ccs s −0.049 ± 0.019 rad Unitarity-Triangle angle parameters sin2β ≡ sin2φ 1 0.699 ± 0.017 β ≡ φ 1 (22.2 ± 0.7) • −ηS φK 0 S 0.74 +0.11 −0.13 −ηS η K 0 0.63 ± 0.06 −ηS K 0 S K 0 S K 0 S 0.83 ± 0.17 φ s (φφ) −0.073 ± 0.115 ± 0.027 rad S B 0 s →K + K − , C B 0 s →K + K − (0.14 ± 0.03, 0.17 ± 0.03) −ηS J/ψ π 0 0.86 ± 0.14 −ηS D + D − 0.84 ± 0.12 −ηS J/ψ ρ 0 0.66 +0.13 −0.12 +0.09 −0.03(0.343 ± 0.002)% τ parameters, lepton universality, and |V us | g τ /g µ 1.0009 ± 0.0014 g τ /g e 1.0027 ± 0.0014 g µ /g e 1.0019 ± 0.0014* )0 s B ( * )0 s ) = (87.0 ± 1.7)% [34] measured as described in Ref. [35]. The proportions of the various production channels for non-strange B mesons have also been measured [22]. 4.3 b-hadron production fractions at high energy At high energy, all species of weakly decaying b hadrons may be produced, either directly or in strong and electromagnetic decays of excited b hadrons. Before 2010, it was assumed that the fractions of different species in unbiased samples of high-p T b-hadron jets where independent of whether they originated from Z decays, pp collisions at the Tevatron, or pp collisions at the LHC. This hypothesis was plausible under the condition Q 2 Λ 2 QCD , namely, that the square of the momentum transfer to the produced b quarks is large compared with the square of the hadronization energy scale. This hypothesis is correct in the limit p T → ∞, in which the production mechanism of a b hadron is completely described by the fragmentation of the b quark. For finite p T , however, there are interference effects of the production mechanism of the b quark and its hadronization. While formally suppressed by inverse powers of p T , these effects may be sizable, especially when the fragmentation probabilities are small as, e.g., in the case of b baryons. In fact, the available data show that the fractions depend on the kinematics of the produced b hadron. Both CDF and LHCb reported a p T dependence of the fractions, with the fraction of Λ 0 b baryons observed at low p T being enhanced with respect to that seen at LEP at higher p T . In our previous publication [1], we presented two sets of averages, one including only measurements performed at LEP, and another including only measurements performed ...

show abstract

Measurement of the decayB0→π−ℓ+νand determination of|Vub<

Cited by 114 publications

References 40 publications

Λb→(Λc, p)
Dutta
¹

2016
Phys. Rev. D
60
3
39
0
View full text Add to dashboard Cite

Λb→(Λc, p)
Dutta
¹

2016
Phys. Rev. D
60
3
39
0
View full text Add to dashboard Cite

B→πℓνℓwidth and|Vub|from QCD light-cone sum rules

Averages of b-hadron, c-hadron, and $$\tau $$ τ -lepton properties as of summer 2016

Contact Info

Product

Resources

About

Measurement of the decayB0→π−ℓ+νand determination of|Vub<

Cited by 114 publications

References 40 publications

Λb→(Λc, p)Dutta1 2016Phys. Rev. D603390View full textAdd to dashboardCite

Λb→(Λc, p)Dutta1 2016Phys. Rev. D603390View full textAdd to dashboardCite

B→πℓνℓwidth and|Vub|from QCD light-cone sum rules

Averages of b-hadron, c-hadron, and $$\tau $$ τ -lepton properties as of summer 2016

Contact Info

Product

Resources

About

Λb→(Λc, p)
Dutta
¹

2016
Phys. Rev. D
60
3
39
0
View full text Add to dashboard Cite

Λb→(Λc, p)
Dutta
¹

2016
Phys. Rev. D
60
3
39
0
View full text Add to dashboard Cite