Observation of the semileptonic decay B+→ pp¯ μ+νμ

The LHCb Collaboration

doi:10.1007/JHEP03(2020)146

Observation of the semileptonic decay B⁺→ pp¯ μ⁺ν_μ

The LHCb Collaboration

Research output: Contribution to journal › Article › Research › peer-review

5 Citations (Scopus)

Abstract

The Cabibbo-suppressed semileptonic decay B⁺→ pp¯ μ⁺ν_μ is observed for the first time using a sample of pp collisions corresponding to an integrated luminosity of 1.0, 2.0 and 1.7 fb⁻¹ at centre-of-mass energies of 7, 8 and 13 TeV, respectively. The differential branching fraction is measured as a function of the pp¯ invariant mass using the decay mode B⁺→ J/ψK⁺ for normalisation. The total branching fraction is measured to be ℬ(B+→pp¯μ+νμ)=(5.27−0.24+0.23±0.21±0.15)×10−6, where the first uncertainty is statistical, the second systematic and the third is from the uncertainty on the branching fraction of the normalisation channel. [Figure not available: see fulltext.]

Original language	English
Article number	146
Number of pages	22
Journal	Journal of High Energy Physics
Volume	2020
Issue number	3
DOIs	https://doi.org/10.1007/JHEP03(2020)146
Publication status	Published - 1 Mar 2020
Externally published	Yes

Keywords

B physics
Branching fraction
Flavor physics
Hadron-Hadron scattering (experiments)

Access to Document

10.1007/JHEP03(2020)146

313287219-oaFinal published version, 1.05 MB

Cite this

@article{173383e370f54c98891b7268b8d32882,

title = "Observation of the semileptonic decay B+→ pp¯ μ+νμ",

abstract = "The Cabibbo-suppressed semileptonic decay B+→ pp¯ μ+νμ is observed for the first time using a sample of pp collisions corresponding to an integrated luminosity of 1.0, 2.0 and 1.7 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV, respectively. The differential branching fraction is measured as a function of the pp¯ invariant mass using the decay mode B+→ J/ψK+ for normalisation. The total branching fraction is measured to be ℬ(B+→pp¯μ+νμ)=(5.27−0.24+0.23±0.21±0.15)×10−6, where the first uncertainty is statistical, the second systematic and the third is from the uncertainty on the branching fraction of the normalisation channel. [Figure not available: see fulltext.]",

keywords = "B physics, Branching fraction, Flavor physics, Hadron-Hadron scattering (experiments)",

author = "R. Aaij and \{Abell{\'a}n Beteta\}, C. and T. Ackernley and B. Adeva and M. Adinolfi and H. Afsharnia and Aidala, \{C. A.\} and S. Aiola and Z. Ajaltouni and S. Akar and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. and G. Alkhazov and \{Alvarez Cartelle\}, P. and Alves, \{A. A.\} and S. Amato and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and F. Archilli and \{Arnau Romeu\}, J. and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and Back, \{J. J.\} and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, \{R. J.\} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and G. Bassi and V. Batozskaya and B. Batsukh and A. Battig and A. Bay and M. Becker and F. Bedeschi and I. Bediaga and A. Beiter and Bel, \{L. J.\} and V. Belavin and S. Belin and N. Beliy and V. Bellee and K. Belous and I. Belyaev and G. Bencivenni and E. Ben-Haim and S. Benson and S. Beranek and A. Berezhnoy and R. Bernet and D. Berninghoff and Bernstein, \{H. C.\} and E. Bertholet and A. Bertolin and C. Betancourt and F. Betti and Bettler, \{M. O.\} and Ia Bezshyiko and S. Bhasin and J. Bhom and Bieker, \{M. S.\} and S. Bifani and P. Billoir and A. Bizzeti and M. Bj{\o}rn and Blago, \{M. P.\} and T. Blake and F. Blanc and S. Blusk and D. Bobulska and V. Bocci and \{Boente Garcia\}, O. and T. Boettcher and A. Boldyrev and A. Bondar and N. Bondar and S. Borghi and M. Borisyak and M. Borsato and Borsuk, \{J. T.\} and Bowcock, \{T. J.V.\} and C. Bozzi and Bradley, \{M. J.\} and S. Braun and \{Brea Rodriguez\}, A. and M. Brodski and J. Brodzicka and \{Brossa Gonzalo\}, A. and D. Brundu and E. Buchanan and A. Buonaura and C. Burr and A. Bursche and Butter, \{J. S.\} and J. Buytaert and W. Byczynski and S. Cadeddu and H. Cai and R. Calabrese and \{Calero Diaz\}, L. and S. Cali and R. Calladine and M. Calvi and \{Calvo Gomez\}, M. and A. Camboni and P. Campana and \{Campora Perez\}, \{D. H.\} and L. Capriotti and A. Carbone and G. Carboni and R. Cardinale and A. Cardini and P. Carniti and \{Carvalho Akiba\}, K. and \{Casais Vidal\}, A. and G. Casse and M. Cattaneo and G. Cavallero and R. Cenci and J. Cerasoli and Chapman, \{M. G.\} and M. Charles and Ph Charpentier and G. Chatzikonstantinidis and M. Chefdeville and V. Chekalina and C. Chen and S. Chen and A. Chernov and Chitic, \{S. G.\} and V. Chobanova and M. Chrzaszcz and A. Chubykin and P. Ciambrone and Cicala, \{M. F.\} and Vidal, \{X. Cid\} and G. Ciezarek and F. Cindolo and Clarke, \{P. E.L.\} and M. Clemencic and Cliff, \{H. V.\} and J. Closier and Cobbledick, \{J. L.\} and V. Coco and Coelho, \{J. A.B.\} and J. Cogan and E. Cogneras and L. Cojocariu and P. Collins and T. Colombo and A. Comerma-Montells and A. Contu and N. Cooke and G. Coombs and S. Coquereau and G. Corti and \{Costa Sobral\}, \{C. M.\} and B. Couturier and Craik, \{D. C.\} and J. Crkovska and A. Crocombe and \{Cruz Torres\}, M. and R. Currie and \{Da Silva\}, \{C. L.\} and E. Dall{\textquoteright}Occo and J. Dalseno and C. D{\textquoteright}Ambrosio and A. Danilina and P. d{\textquoteright}Argent and A. Davis and \{De Aguiar Francisco\}, O. and \{De Bruyn\}, K. and \{De Capua\}, S. and \{De Cian\}, M. and \{De Miranda\}, \{J. M.\} and \{De Paula\}, L. and \{De Serio\}, M. and \{De Simone\}, P. and \{de Vries\}, \{J. A.\} and Dean, \{C. T.\} and W. Dean and D. Decamp and \{Del Buono\}, L. and B. Delaney and Dembinski, \{H. P.\} and M. Demmer and A. Dendek and V. Denysenko and D. Derkach and O. Deschamps and F. Desse and F. Dettori and B. Dey and \{Di Canto\}, A. and \{Di Nezza\}, P. and S. Didenko and H. Dijkstra and V. Dobishuk and F. Dordei and M. Dorigo and \{dos Reis\}, \{A. C.\} and L. Douglas and A. Dovbnya and K. Dreimanis and Dudek, \{M. W.\} and L. Dufour and G. Dujany and P. Durante and Durham, \{J. M.\} and D. Dutta and R. Dzhelyadin and M. Dziewiecki and A. Dziurda and A. Dzyuba and S. Easo and U. Egede and V. Egorychev and S. Eidelman and S. Eisenhardt and R. Ekelhof and S. Ek-In and L. Eklund and S. Ely and A. Ene and S. Escher and S. Esen and T. Evans and A. Falabella and J. Fan and N. Farley and S. Farry and D. Fazzini and M. F{\'e}o and \{Fernandez Declara\}, P. and T. Hadavizadeh and Lane, \{Jake J.\} and \{The LHCb Collaboration\}",

year = "2020",

month = mar,

day = "1",

doi = "10.1007/JHEP03(2020)146",

language = "English",

volume = "2020",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer-Verlag London Ltd.",

number = "3",

}

TY - JOUR

T1 - Observation of the semileptonic decay B+→ pp¯ μ+νμ

AU - Aaij, R.

AU - Abellán Beteta, C.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Afsharnia, H.

AU - Aidala, C. A.

AU - Aiola, S.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Archilli, F.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Back, J. J.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Baranov, A.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - Baryshnikov, F.

AU - Bassi, G.

AU - Batozskaya, V.

AU - Batsukh, B.

AU - Battig, A.

AU - Bay, A.

AU - Becker, M.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Beiter, A.

AU - Bel, L. J.

AU - Belavin, V.

AU - Belin, S.

AU - Beliy, N.

AU - Bellee, V.

AU - Belous, K.

AU - Belyaev, I.

AU - Bencivenni, G.

AU - Ben-Haim, E.

AU - Benson, S.

AU - Beranek, S.

AU - Berezhnoy, A.

AU - Bernet, R.

AU - Berninghoff, D.

AU - Bernstein, H. C.

AU - Bertholet, E.

AU - Bertolin, A.

AU - Betancourt, C.

AU - Betti, F.

AU - Bettler, M. O.

AU - Bezshyiko, Ia

AU - Bhasin, S.

AU - Bhom, J.

AU - Bieker, M. S.

AU - Bifani, S.

AU - Billoir, P.

AU - Bizzeti, A.

AU - Bjørn, M.

AU - Blago, M. P.

AU - Blake, T.

AU - Blanc, F.

AU - Blusk, S.

AU - Bobulska, D.

AU - Bocci, V.

AU - Boente Garcia, O.

AU - Boettcher, T.

AU - Boldyrev, A.

AU - Bondar, A.

AU - Bondar, N.

AU - Borghi, S.

AU - Borisyak, M.

AU - Borsato, M.

AU - Borsuk, J. T.

AU - Bowcock, T. J.V.

AU - Bozzi, C.

AU - Bradley, M. J.

AU - Braun, S.

AU - Brea Rodriguez, A.

AU - Brodski, M.

AU - Brodzicka, J.

AU - Brossa Gonzalo, A.

AU - Brundu, D.

AU - Buchanan, E.

AU - Buonaura, A.

AU - Burr, C.

AU - Bursche, A.

AU - Butter, J. S.

AU - Buytaert, J.

AU - Byczynski, W.

AU - Cadeddu, S.

AU - Cai, H.

AU - Calabrese, R.

AU - Calero Diaz, L.

AU - Cali, S.

AU - Calladine, R.

AU - Calvi, M.

AU - Calvo Gomez, M.

AU - Camboni, A.

AU - Campana, P.

AU - Campora Perez, D. H.

AU - Capriotti, L.

AU - Carbone, A.

AU - Carboni, G.

AU - Cardinale, R.

AU - Cardini, A.

AU - Carniti, P.

AU - Carvalho Akiba, K.

AU - Casais Vidal, A.

AU - Casse, G.

AU - Cattaneo, M.

AU - Cavallero, G.

AU - Cenci, R.

AU - Cerasoli, J.

AU - Chapman, M. G.

AU - Charles, M.

AU - Charpentier, Ph

AU - Chatzikonstantinidis, G.

AU - Chefdeville, M.

AU - Chekalina, V.

AU - Chen, C.

AU - Chen, S.

AU - Chernov, A.

AU - Chitic, S. G.

AU - Chobanova, V.

AU - Chrzaszcz, M.

AU - Chubykin, A.

AU - Ciambrone, P.

AU - Cicala, M. F.

AU - Vidal, X. Cid

AU - Ciezarek, G.

AU - Cindolo, F.

AU - Clarke, P. E.L.

AU - Clemencic, M.

AU - Cliff, H. V.

AU - Closier, J.

AU - Cobbledick, J. L.

AU - Coco, V.

AU - Coelho, J. A.B.

AU - Cogan, J.

AU - Cogneras, E.

AU - Cojocariu, L.

AU - Collins, P.

AU - Colombo, T.

AU - Comerma-Montells, A.

AU - Contu, A.

AU - Cooke, N.

AU - Coombs, G.

AU - Coquereau, S.

AU - Corti, G.

AU - Costa Sobral, C. M.

AU - Couturier, B.

AU - Craik, D. C.

AU - Crkovska, J.

AU - Crocombe, A.

AU - Cruz Torres, M.

AU - Currie, R.

AU - Da Silva, C. L.

AU - Dall’Occo, E.

AU - Dalseno, J.

AU - D’Ambrosio, C.

AU - Danilina, A.

AU - d’Argent, P.

AU - Davis, A.

AU - De Aguiar Francisco, O.

AU - De Bruyn, K.

AU - De Capua, S.

AU - De Cian, M.

AU - De Miranda, J. M.

AU - De Paula, L.

AU - De Serio, M.

AU - De Simone, P.

AU - de Vries, J. A.

AU - Dean, C. T.

AU - Dean, W.

AU - Decamp, D.

AU - Del Buono, L.

AU - Delaney, B.

AU - Dembinski, H. P.

AU - Demmer, M.

AU - Dendek, A.

AU - Denysenko, V.

AU - Derkach, D.

AU - Deschamps, O.

AU - Desse, F.

AU - Dettori, F.

AU - Dey, B.

AU - Di Canto, A.

AU - Di Nezza, P.

AU - Didenko, S.

AU - Dijkstra, H.

AU - Dobishuk, V.

AU - Dordei, F.

AU - Dorigo, M.

AU - dos Reis, A. C.

AU - Douglas, L.

AU - Dovbnya, A.

AU - Dreimanis, K.

AU - Dudek, M. W.

AU - Dufour, L.

AU - Dujany, G.

AU - Durante, P.

AU - Durham, J. M.

AU - Dutta, D.

AU - Dzhelyadin, R.

AU - Dziewiecki, M.

AU - Dziurda, A.

AU - Dzyuba, A.

AU - Easo, S.

AU - Egede, U.

AU - Egorychev, V.

AU - Eidelman, S.

AU - Eisenhardt, S.

AU - Ekelhof, R.

AU - Ek-In, S.

AU - Eklund, L.

AU - Ely, S.

AU - Ene, A.

AU - Escher, S.

AU - Esen, S.

AU - Evans, T.

AU - Falabella, A.

AU - Fan, J.

AU - Farley, N.

AU - Farry, S.

AU - Fazzini, D.

AU - Féo, M.

AU - Fernandez Declara, P.

AU - Hadavizadeh, T.

AU - Lane, Jake J.

AU - The LHCb Collaboration

PY - 2020/3/1

Y1 - 2020/3/1

N2 - The Cabibbo-suppressed semileptonic decay B+→ pp¯ μ+νμ is observed for the first time using a sample of pp collisions corresponding to an integrated luminosity of 1.0, 2.0 and 1.7 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV, respectively. The differential branching fraction is measured as a function of the pp¯ invariant mass using the decay mode B+→ J/ψK+ for normalisation. The total branching fraction is measured to be ℬ(B+→pp¯μ+νμ)=(5.27−0.24+0.23±0.21±0.15)×10−6, where the first uncertainty is statistical, the second systematic and the third is from the uncertainty on the branching fraction of the normalisation channel. [Figure not available: see fulltext.]

AB - The Cabibbo-suppressed semileptonic decay B+→ pp¯ μ+νμ is observed for the first time using a sample of pp collisions corresponding to an integrated luminosity of 1.0, 2.0 and 1.7 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV, respectively. The differential branching fraction is measured as a function of the pp¯ invariant mass using the decay mode B+→ J/ψK+ for normalisation. The total branching fraction is measured to be ℬ(B+→pp¯μ+νμ)=(5.27−0.24+0.23±0.21±0.15)×10−6, where the first uncertainty is statistical, the second systematic and the third is from the uncertainty on the branching fraction of the normalisation channel. [Figure not available: see fulltext.]

KW - B physics

KW - Branching fraction

KW - Flavor physics

KW - Hadron-Hadron scattering (experiments)

UR - https://www.scopus.com/pages/publications/85082872106

U2 - 10.1007/JHEP03(2020)146

DO - 10.1007/JHEP03(2020)146

M3 - Article

AN - SCOPUS:85082872106

SN - 1126-6708

VL - 2020

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 3

M1 - 146

ER -