Measurement of the shape of the $$ {B}_s^0\to {D}_s^{\ast -}{\mu}^{+}{\nu}_{\mu } $$ differential decay rate

Aaij, R.; Beteta, C. Abellán; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Aidala, C.; Aiola, S.; Ajaltouni, Z.; Akar, S.; Albicocco, P.; Albrecht, J.; Alessio, F.; Alexander, M.; Albero, A. Alfonso; Aliouche, Z.; Alkhazov, G.; Cartelle, P. Alvarez; Alves, A. A.; Amato, S.; Amhis, Y.; An, L.; Anderlini, L.; Andreassi, G.; Andreianov, A.; Andreotti, M.; Archilli, F.; Artamonov, A.; Artuso, M.; Arzymatov, K.; Aslanides, E.; Atzeni, M.; Audurier, B.; Bachmann, S.; Bachmayer, M.; Back, J. J.; Baker, S.; Rodríguez, P. Baladrón; Balagura, V.; Baldini, W.; Leite, J. Baptista; Baranov, A.; Barlow, R. J.; Barsuk, S.; Barter, W.; Bartolini, M.; Baryshnikov, F.; Basels, Jan-Marc; Bassi, G.; Batozskaya, V.; Batsukh, B.; Battig, A.; Bay, A.; Becker, Maik; Bedeschi, F.; Bediaga, I.; Beiter, A.; Bel, L. J.; Belavin, V.; Belin, S.; Bellée, V.; Belous, K.; Belyaev, I.; Bencivenni, G.; Ben-Haim, E.; Benson, S.; Beranek, S.; Berezhnoy, A.; Bernet, R.; Berninghoff, D.; Bernstein, H. C.; Bertella, C.; Bertholet, E.; Bertolin, A.; Betancourt, C.; Betti, F.; Bettler, M. O.; Bezshyiko, Ia.; Bhasin, S.; Bhom, J.; Bian, L.; Bieker, M. S.; Bifani, S.; Billoir, P.; Bishop, F. C. R.; Bizzeti, A.; Bjørn, M.; Blago, M. P.; Blake, T.; Blanc, F.; Blusk, S.; Bobulska, D.; Bocci, V.; Boelhauve, J. A.; García, O. Boente; Boettcher, T.; Boldyrev, A. S.; Bondar, A.; Bondar, N.; Borghi, S.; Borisyak, M.; Borsato, M.; Borsuk, J. T.; Bouchiba, Sonia Amina; Bowcock, T. J. V.; Boyer, A.; Bozzi, C.; Bradley, Matthew John; Braun, S.; Rodríguez, A. Brea; Brodski, M.; Brodzicka, J.; Gonzalo, A. Brossa; Brundu, D.; Buchanan, E.; Büchler-Germann, A.; Buonaura, A.; Burr, C.; Bursche, A.; Butkevich, A.; Butter, J. S.; Buytaert, J.; Byczynski, W.; Cadeddu, S.; Cai, H.; Calabrese, R.; Diaz, L. Calero; Cali, S.; Calladine, R.; Calvi, M.; Gomez, M. Calvo; Magalhães, Patrícia Camargo; Camboni, A.; Campana, P.; Perez, D. H. Campora; Quezada, Angel Fernando Campoverde; Capelli, S.; Capriotti, L.; Carbone, A.; Carboni, G.; Cardinale, R.; Cardini, A.; Carli, I.; Carniti, P.; Akiba, K. Carvalho; Vidal, A. Casais; Casse, G.; Cattaneo, M.; Cavallero, G.; Celani, S.; Cenci, R.; Cerasoli, J.; Chadwick, Abbie Jane; Chapman, M. G.; Charles, M.; Charpentier, Ph.; Chatzikonstantinidis, G.; Chefdeville, M.; Chekalina, V.; Chen, C.; Chen, S.; Chernov, A.; Chitic, S.-G.; Chobanova, V.; Cholak, S.; Chrząszcz, M.; Chubykin, A.; Chulikov, V.; Ciambrone, P.; Cicala, M. F.; Vidal, X. Cid; Ciezarek, G.; Clarke, P. E. L.; Clemencic, M.; Cliff, H. V.; Closier, J.; Cobbledick, J. L.; Coco, V.; Coelho, J. A. B.; Cogan, J.; Cogneras, E.; Cojocariu, L.; Collins, P.; Colombo, T.; Comerma-Montells, A.; Contu, A.; Cooke, N.; Coombs, G.; Coquereau, S.; Corti, G.; Sobral, C. M. Costa; Couturier, B.; Craik, D. C.; Crkovská, J.; Crocombe, A.; Torres, M. Cruz; Currie, R.; Silva, C. L. Da; Dall’Occo, E.; Dalseno, J.; D’Ambrosio, C.; Danilina, A.; d’Argent, P.; Davis, A.; Francisco, O. De Aguiar; Bruyn, K. De; Capua, S. De; Cian, M. De; Miranda, J. M. De; Paula, L. De; Serio, M. De; Simone, D. De; Simone, P. De; Vries, J. A. de; Dean, C. T.; Dean, William L.; Décamp, D.; Buono, L. Del; Delaney, B.; Dembinski, H.-P.; Dendek, A.; Denysenko, V.; Деркач, Д.; Deschamps, O.; Desse, F.; Dettori, F.; Dey, B.; Canto, A. Di; Nezza, P. Di; Didenko, S.; Dijkstra, H.; Dobishuk, V.; Donohoe, Amanda May; Dordei, F.; Dorigo, M.; Reis, A. C. dos; Douglas, L.; Dovbnya, A.; Downes, Anthony Gavin; Dreimanis, K.; Dudek, M. W.; Dufour, L.; Dujany, G.; Durante, P.; Durham, J. 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Garcia; Rosales, F. A. Garcia; Garrido, L.; Gascón, D.; Gaspar, C.; Geertsema, R. E.; Gerick, D.; Gersabeck, E.; Gersabeck, M.; Gershon, T.; Gerstel, D.; Ghez, Ph.; Gibson, V.; Gioventù, A.; Girard, O. G.; Gironell, P. Gironella; Giubega, L.; Giugliano, C.; Gizdov, K.; Gligorov, Vladimir; Göbel, C.; Golobardes, Elisabet; Golubkov, D.; Golutvin, A.; Gomes, A.; Goncerz, M.; Gorbounov, P. A.; Gorelov, I.; Gotti, C.; Говоркова, Е.; Grabowski, J. P.; Diaz, R. Graciani; Grammatico, T.; Cardoso, L. A. Granado; Graugés, E.; Graverini, E.; Graziani, G.; Grecu, A.; Greeven, Lex Marinus; Greim, R.; Griffith, P.; Grillo, L.; Gruber, L.; Cazon, B. R. Gruberg; Gu, C.; Guarise, M.; Günther, P. A.; Guo, Xin-Heng; Gushchin, E.; Güth, A.; Guz, Yu.; Gys, T.; Hadavizadeh, T.; Haefeli, G.; Haen, C.; Haines, S. C.; Hamilton, P. M.; Han, Q.; Han, X.; Hancock, T. 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P.; Lucchesi, D.; Luchuk, S.; Martínez, M. Lucio; Lukashenko, V.; Luo, Y.; Lupato, A.; Luppi, E.; Lupton, O.; Lusiani, A.; Lyu, X. R.; Ma, L.; Ma, R.; Maccolini, S.; Machefert, F.; Maciuc, F.; Maćko, V.; Mackowiak, P.; Maddrell-Mander, S.; Mohan, L. R. Madhan; Maev, O.; Maevskiy, A.; Maisuzenko, D.; Majewski, M. W.; Malde, S.; Małecki, B.; Малинин, А.; Maltsev, T.; Malygina, H.; Manca, G.; Mancinelli, G.; Escalero, R. Manera; Manuzzi, D.; Marangotto, D.; Maratas, J.; Marchand, J. F.; Marconi, U.; Mariani, S.; Benito, C. Marín; Marinangeli, M.; Marino, P.; Marks, J.; Marshall, P. J.; Martellotti, G.; Martinazzoli, L.; Martinelli, M.; Santos, D. Martínez; Vidal, F. Martínez; Massafferri, A.; Materok, M.; Matev, R.; Mathad, A.; Máthé, Z.; Matiunin, V.; Matteuzzi, C.; Mattioli, K. 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A.; Zavertyaev, M.; Zdybał, M.; Zenaiev, O.; Zeng, Ming; Zhang, D.; Zhang, L.; Zhang, S.; Zhang, W. C.; Zhang, Y.; Zhelezov, A.; Zheng, Y.; Zhou, X. K.; Zhou, Y.; Zhu, X.; Жуков, В.; Zonneveld, J. B.; Zucchelli, S.; Zuliani, Davide; Zunica, Gianluca

doi:10.1007/jhep12(2020)144

Cited by 14 publications

(23 citation statements)

References 54 publications

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“…II we compute the normalized decay rates in small recoil parameter bins and also compare with lattice QCD and LHCb data. 12) along with the comparison with LHCb data [35].…”

Section: Resultsmentioning

confidence: 99%

Form factors and branching fraction calculations for $B_s \to D_s^{(*)} \ell^+ ν_\ell$ in view of LHCb observation

Soni¹,

Issadykov²,

Gadaria³

et al. 2021

Preprint

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Here, we study the B s → D ( * ) s ℓν ℓ semileptonic decays within the Standard Model framework of covariant confined quark model. The necessary transition form factors are computed in the entire dynamical range of momentum transfer squared with built-in infrared confinement. Our computed ratios of the decay widths from tau mode to muon mode for D s and D * s mesons are found to be R(D s ) = 0.271 ± 0.069 and R(D * s ) = 0.240 ± 0.038. We further determine the ratio of the decay width from D s and D * s channel for muon mode Γ(B s → D s µ + ν µ )/Γ(B s → D * s µ + ν µ ) = 0.451±0.093. Our results are in excellent agreement with the data from recent LHCb experiments as well as lattice quantum chromodynamics simulations. We have also compared the shape of differential decay distribution for B s → D * s µ + ν µ with the recent LHCb data and our results are in very good agreement throughout all the individual bins. Some other physical observables such as forwardbackward asymmetry and longitudinal polarizations of leptons in the final state are also computed.

show abstract

“…II we compute the normalized decay rates in small recoil parameter bins and also compare with lattice QCD and LHCb data. 12) along with the comparison with LHCb data [35].…”

Section: Resultsmentioning

confidence: 99%

Form factors and branching fraction calculations for $B_s \to D_s^{(*)} \ell^+ ν_\ell$ in view of LHCb observation

Soni¹,

Issadykov²,

Gadaria³

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…[76][77][78][79][80][81][82] and references therein. 7 It should be noted that the unitarity bounds applied in the lattice [83,84] and experimental [85,86] determinations of the Bs → D ( * ) s transition form factors are much looser than imposed in refs. [75][76][77].…”

Section: Updated Predictions For Branching Ratiosmentioning

confidence: 99%

“…6 For the B s → D ( * ) s transition form factors, on the other hand, we use the improved lattice QCD determinations presented in refs. [83,84], while the experimental values of the differential semi-leptonic B0 s → D ( * )+ s − ν decay rates are taken from the LHCb collaboration [85,86]. 7 As a comparison, we list in table 2 our results for some of these transition form factors evaluated at q 2 = m 2 K − or q 2 = m 2 π − , together with the ones used in refs.…”

Section: Input Parametersmentioning

confidence: 99%

Probing new physics in class-I B-meson decays into heavy-light final states

Cai

Deng

et al. 2021

J. High Energ. Phys.

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With updated experimental data and improved theoretical calculations, several significant deviations are being observed between the Standard Model predictions and the experimental measurements of the branching ratios of $$ {\overline{B}}_{(s)}^0\to {D}_{(s)}^{\left(\ast \right)+}{L}^{-} $$ B ¯ s 0 → D s ∗ + L − decays, where L is a light meson from the set {π, ρ, K(∗)}. Especially for the two channels $$ {\overline{B}}^0\to {D}^{+}{K}^{-} $$ B ¯ 0 → D + K − and $$ {\overline{B}}_s^0\to {D}_s^{+}{\pi}^{-} $$ B ¯ s 0 → D s + π − , both of which are free of the weak annihilation contribution, the deviations observed can even reach 4–5σ. Here we exploit possible new-physics effects in these class-I non-leptonic B-meson decays within the framework of QCD factorization. Firstly, we perform a model-independent analysis of the effects from twenty linearly independent four-quark operators that can contribute, either directly or through operator mixing, to the quark-level b →$$ c\overline{u}d(s) $$ c u ¯ d s transitions. It is found that, under the combined constraints from the current experimental data, the deviations observed could be well explained at the 1σ level by the new-physics four-quark operators with γμ(1 − γ5) ⨂ γμ(1 − γ5) structure, and also at the 2σ level by the operators with (1 + γ5) ⨂ (1 − γ5) and (1 + γ5) ⨂ (1 + γ5) structures. However, the new-physics four-quark operators with other Dirac structures fail to provide a consistent interpretation, even at the 2σ level. Then, as two specific examples of model-dependent considerations, we discuss the case where the new-physics four-quark operators are generated by either a colorless charged gauge boson or a colorless charged scalar, with their masses fixed both at the 1 TeV. Constraints on the effective coefficients describing the couplings of these mediators to the relevant quarks are obtained by fitting to the current experimental data.

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“…The shape of the differential decay rate of the 0 → * − + decay is measured using data corresponding to an integrated luminosity of 1.7 fb −1 at a centre-of-mass energy of 13 TeV [9]. The…”

Section: Measurement Of the Shape Of The 0 → * − + Differential Decaymentioning

confidence: 99%

“…Unfolded normalised differential 0 → * − + decay rate with the fit results for the CLN and BGL parametrisations[9].…”

mentioning

confidence: 99%

Study of b-hadron properties with semileptonic b-hadron decays

Reiss¹

2021

Proceedings of 40th International Conference on High Energy Physics — PoS(ICHEP2020)

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With large branching fractions and controllable theoretical uncertainties, semileptonic decays are excellent tools for measuring-hadron properties as well as testing QCD calculations. The large samples of 0 mesons and-baryons uniquely available at LHCb extend the experimental reach into this sector, allowing differential decay rates of these hadrons to be probed for the first time. The observation and study of + → + decays offer the opportunity to investigate hadronic meson-to-baryon-pair transitions. The most recent measurements of-hadron properties using semileptonic-hadron decays are presented.

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Measurement of the shape of the $$ {B}_s^0\to {D}_s^{\ast -}{\mu}^{+}{\nu}_{\mu } $$ differential decay rate

Abstract: The shape of the $$ {B}_s^0\to {D}_s^{\ast -}{\mu}^{+}{\nu}_{\mu } $$ B s 0 → D s ∗ − μ + ν μ … Show more

Cited by 14 publications

References 54 publications

Form factors and branching fraction calculations for $B_s \to D_s^{(*)} \ell^+ ν_\ell$ in view of LHCb observation

Form factors and branching fraction calculations for $B_s \to D_s^{(*)} \ell^+ ν_\ell$ in view of LHCb observation

Probing new physics in class-I B-meson decays into heavy-light final states

Study of b-hadron properties with semileptonic b-hadron decays

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