Differential branching fraction and angular analysis of the B +→ K+μ+μ- decay

The LHCb Collaboration

doi:10.1007/JHEP02(2013)105

Differential branching fraction and angular analysis of the B ⁺→ K⁺μ⁺μ^- decay

The LHCb Collaboration

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

94 Citations (Scopus)

Abstract

The angular distribution and differential branching fraction of the decay B⁺→ K⁺μ⁺μ^- are studied with a dataset corresponding to 1.0 fb^-1 of integrated luminosity, collected by the LHCb experiment. The angular distribution is measured in bins of dimuon invariant mass squared and found to be consistent with Standard Model expectations. Integrating the differential branching fraction over the full dimuon invariant mass range yields a total branching fraction of β(B ⁺→ K⁺μ⁺μ^-) = (4:36±0:15±0:18)×10^-7. These measurements are the most precise to date of the B⁺→ K⁺μ ⁺μ^- decay.

Original language	English
Article number	105
Number of pages	15
Journal	Journal of High Energy Physics
Volume	2013
Issue number	2
DOIs	https://doi.org/10.1007/JHEP02(2013)105
Publication status	Published - 4 Oct 2013
Externally published	Yes

Keywords

B-physics
Rare decays

Access to Document

10.1007/JHEP02(2013)105

Cite this

@article{8ccdd90ef3ee42c8a21a26334c7b8de1,

title = "Differential branching fraction and angular analysis of the B +→ K+μ+μ- decay",

abstract = "The angular distribution and differential branching fraction of the decay B+→ K+μ+μ- are studied with a dataset corresponding to 1.0 fb-1 of integrated luminosity, collected by the LHCb experiment. The angular distribution is measured in bins of dimuon invariant mass squared and found to be consistent with Standard Model expectations. Integrating the differential branching fraction over the full dimuon invariant mass range yields a total branching fraction of β(B +→ K+μ+μ-) = (4:36±0:15±0:18)×10-7. These measurements are the most precise to date of the B+→ K+μ +μ- decay.",

keywords = "B-physics, Rare decays",

author = "R. Aaij and Beteta, {C. Abellan} and A. Adametz and B. Adeva and M. Adinolfi and C. Adrover and A. Affolder and Z. Ajaltouni and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and Cartelle, {P. Alvarez} and Alves, {A. A.} and S. Amato and Y. Amhis and L. Anderlini and J. Anderson and Appleby, {R. B.} and Gutierrez, {O. Aquines} and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and S. Bachmann and Back, {J. J.} and C. Baesso and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and A. Bates and T. Bauer and A. Bay and J. Beddow and I. Bediaga and S. Belogurov and K. Belous and I. Belyaev and E. Ben-Haim and M. Benayoun and G. Bencivenni and S. Benson and J. Benton and A. Berezhnoy and R. Bernet and Bettler, {M. O.} and {Van Beuzekom}, M. and A. Bien and S. Bifani and T. Bird and A. Bizzeti and Bjrnstad, {P. M.} and T. Blake and F. Blanc and C. Blanks and J. Blouw and S. Blusk and A. Bobrov and V. Bocci and A. Bondar and N. Bondar and W. Bonivento and S. Borghi and A. Borgia and Bowcock, {T. J.V.} and Bowen, {E. E.} and C. Bozzi and T. Brambach and {Van Den Brand}, J. and J. Bressieux and D. Brett and M. Britsch and T. Britton and Brook, {N. H.} and H. Brown and A. Bffuchler-Germann and I. Burducea and A. Bursche and J. Buytaert and S. Cadeddu and O. Callot and M. Calvi and Gomez, {M. Calvo} and A. Camboni and P. Campana and A. Carbone and G. Carboni and R. Cardinale and A. Cardini and L. Carson and Akiba, {K. Carvalho} and G. Casse and M. Cattaneo and C. Cauet and M. Charles and P. Charpentier and P. Chen and N. Chiapolini and M. Chrzaszcz and K. Ciba and Vidal, {X. Cid} and G. Ciezarek and Clarke, {P. E.L.} and M. Clemencic and Cliff, {H. V.} and J. Closier and C. Coca and V. Coco and J. Cogan and E. Cogneras and P. Collins and A. Comerma-Montells and A. Contu and A. Cook and M. Coombes and G. Corti and B. Couturier and Cowan, {G. A.} and D. Craik and S. Cunliffe and R. Currie and C. D'Ambrosio and P. David and David, {P. N.Y.} and {De Bonis}, I. and {De Bruyn}, K. and {De Capua}, S. and {De Cian}, M. and {De Miranda}, {J. M.} and {De Paula}, L. and {De Simone}, P. and D. Decamp and M. Deckenhoff and H. Degaudenzi and {Del Buono}, L. and C. Deplano and D. Derkach and O. Deschamps and F. Dettori and {Di Canto}, A. and J. Dickens and H. Dijkstra and Batista, {P. Diniz} and Bonal, {F. Domingo} and S. Donleavy and F. Dordei and Suarez, {A. Dosil} and D. Dossett and A. Dovbnya and F. Dupertuis and R. Dzhelyadin and A. Dziurda and A. Dzyuba and S. Easo and U. Egede and V. Egorychev and S. Eidelman and {Van Eijk}, D. and S. Eisenhardt and R. Ekelhof and L. Eklund and {El Rifai}, I. and C. Elsasser and D. Elsby and Pereira, {D. Esperante} and A. Falabella and C. Fffarber and G. Fardell and C. Farinelli and S. Farry and V. Fave and Albor, {V. Fernandez} and Rodrigues, {F. Ferreira} and M. Ferro-Luzzi and S. Filippov and C. Fitzpatrick and M. Fontana and F. Fontanelli and R. Forty and O. Francisco and M. Frank and C. Frei and M. Frosini and S. Furcas and Torreira, {A. Gallas} and D. Galli and M. Gandelman and P. Gandini and Y. Gao and Garnier, {J. C.} and J. Garofoli and Tico, {J. Garra} and L. Garrido and C. Gaspar and R. Gauld and E. Gersabeck and M. Gersabeck and T. Gershon and P. Ghez and V. Gibson and Gligorov, {V. V.} and C. Gffobel and D. Golubkov and A. Golutvin and A. Gomes and H. Gordon and Gandara, {M. Grabalosa} and Diaz, {R. Graciani} and Cardoso, {L. A.Granado} and E. Grauges and G. Graziani and A. Grecu and E. Greening and S. Gregson and O. Grffunberg and B. Gui and E. Gushchin and Y. Guz and T. Gys and C. Hadjivasiliou and G. Haefeli and C. Haen and Haines, {S. C.} and S. Hall and T. Hampson and S. Hansmann-Menzemer and N. Harnew and Harnew, {S. T.} and J. Harrison and Harrison, {P. F.} and T. Hartmann and J. He and V. Heijne and K. Hennessy and P. Henrard and Morata, {J. A.Hernando} and {Van Herwijnen}, E. and E. Hicks and D. Hill and M. Hoballah and P. Hopchev and W. Hulsbergen and P. Hunt and T. Huse and N. Hussain and Huston, {R. S.} and {The LHCb Collaboration}",

year = "2013",

month = oct,

day = "4",

doi = "10.1007/JHEP02(2013)105",

language = "English",

volume = "2013",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer-Verlag London Ltd.",

number = "2",

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TY - JOUR

T1 - Differential branching fraction and angular analysis of the B +→ K+μ+μ- decay

AU - Aaij, R.

AU - Beteta, C. Abellan

AU - Adametz, A.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Adrover, C.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Cartelle, P. Alvarez

AU - Alves, A. A.

AU - Amato, S.

AU - Amhis, Y.

AU - Anderlini, L.

AU - Anderson, J.

AU - Appleby, R. B.

AU - Gutierrez, O. Aquines

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Bachmann, S.

AU - Back, J. J.

AU - Baesso, C.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Bates, A.

AU - Bauer, T.

AU - Bay, A.

AU - Beddow, J.

AU - Bediaga, I.

AU - Belogurov, S.

AU - Belous, K.

AU - Belyaev, I.

AU - Ben-Haim, E.

AU - Benayoun, M.

AU - Bencivenni, G.

AU - Benson, S.

AU - Benton, J.

AU - Berezhnoy, A.

AU - Bernet, R.

AU - Bettler, M. O.

AU - Van Beuzekom, M.

AU - Bien, A.

AU - Bifani, S.

AU - Bird, T.

AU - Bizzeti, A.

AU - Bjrnstad, P. M.

AU - Blake, T.

AU - Blanc, F.

AU - Blanks, C.

AU - Blouw, J.

AU - Blusk, S.

AU - Bobrov, A.

AU - Bocci, V.

AU - Bondar, A.

AU - Bondar, N.

AU - Bonivento, W.

AU - Borghi, S.

AU - Borgia, A.

AU - Bowcock, T. J.V.

AU - Bowen, E. E.

AU - Bozzi, C.

AU - Brambach, T.

AU - Van Den Brand, J.

AU - Bressieux, J.

AU - Brett, D.

AU - Britsch, M.

AU - Britton, T.

AU - Brook, N. H.

AU - Brown, H.

AU - Bffuchler-Germann, A.

AU - Burducea, I.

AU - Bursche, A.

AU - Buytaert, J.

AU - Cadeddu, S.

AU - Callot, O.

AU - Calvi, M.

AU - Gomez, M. Calvo

AU - Camboni, A.

AU - Campana, P.

AU - Carbone, A.

AU - Carboni, G.

AU - Cardinale, R.

AU - Cardini, A.

AU - Carson, L.

AU - Akiba, K. Carvalho

AU - Casse, G.

AU - Cattaneo, M.

AU - Cauet, C.

AU - Charles, M.

AU - Charpentier, P.

AU - Chen, P.

AU - Chiapolini, N.

AU - Chrzaszcz, M.

AU - Ciba, K.

AU - Vidal, X. Cid

AU - Ciezarek, G.

AU - Clarke, P. E.L.

AU - Clemencic, M.

AU - Cliff, H. V.

AU - Closier, J.

AU - Coca, C.

AU - Coco, V.

AU - Cogan, J.

AU - Cogneras, E.

AU - Collins, P.

AU - Comerma-Montells, A.

AU - Contu, A.

AU - Cook, A.

AU - Coombes, M.

AU - Corti, G.

AU - Couturier, B.

AU - Cowan, G. A.

AU - Craik, D.

AU - Cunliffe, S.

AU - Currie, R.

AU - D'Ambrosio, C.

AU - David, P.

AU - David, P. N.Y.

AU - De Bonis, I.

AU - De Bruyn, K.

AU - De Capua, S.

AU - De Cian, M.

AU - De Miranda, J. M.

AU - De Paula, L.

AU - De Simone, P.

AU - Decamp, D.

AU - Deckenhoff, M.

AU - Degaudenzi, H.

AU - Del Buono, L.

AU - Deplano, C.

AU - Derkach, D.

AU - Deschamps, O.

AU - Dettori, F.

AU - Di Canto, A.

AU - Dickens, J.

AU - Dijkstra, H.

AU - Batista, P. Diniz

AU - Bonal, F. Domingo

AU - Donleavy, S.

AU - Dordei, F.

AU - Suarez, A. Dosil

AU - Dossett, D.

AU - Dovbnya, A.

AU - Dupertuis, F.

AU - Dzhelyadin, R.

AU - Dziurda, A.

AU - Dzyuba, A.

AU - Easo, S.

AU - Egede, U.

AU - Egorychev, V.

AU - Eidelman, S.

AU - Van Eijk, D.

AU - Eisenhardt, S.

AU - Ekelhof, R.

AU - Eklund, L.

AU - El Rifai, I.

AU - Elsasser, C.

AU - Elsby, D.

AU - Pereira, D. Esperante

AU - Falabella, A.

AU - Fffarber, C.

AU - Fardell, G.

AU - Farinelli, C.

AU - Farry, S.

AU - Fave, V.

AU - Albor, V. Fernandez

AU - Rodrigues, F. Ferreira

AU - Ferro-Luzzi, M.

AU - Filippov, S.

AU - Fitzpatrick, C.

AU - Fontana, M.

AU - Fontanelli, F.

AU - Forty, R.

AU - Francisco, O.

AU - Frank, M.

AU - Frei, C.

AU - Frosini, M.

AU - Furcas, S.

AU - Torreira, A. Gallas

AU - Galli, D.

AU - Gandelman, M.

AU - Gandini, P.

AU - Gao, Y.

AU - Garnier, J. C.

AU - Garofoli, J.

AU - Tico, J. Garra

AU - Garrido, L.

AU - Gaspar, C.

AU - Gauld, R.

AU - Gersabeck, E.

AU - Gersabeck, M.

AU - Gershon, T.

AU - Ghez, P.

AU - Gibson, V.

AU - Gligorov, V. V.

AU - Gffobel, C.

AU - Golubkov, D.

AU - Golutvin, A.

AU - Gomes, A.

AU - Gordon, H.

AU - Gandara, M. Grabalosa

AU - Diaz, R. Graciani

AU - Cardoso, L. A.Granado

AU - Grauges, E.

AU - Graziani, G.

AU - Grecu, A.

AU - Greening, E.

AU - Gregson, S.

AU - Grffunberg, O.

AU - Gui, B.

AU - Gushchin, E.

AU - Guz, Y.

AU - Gys, T.

AU - Hadjivasiliou, C.

AU - Haefeli, G.

AU - Haen, C.

AU - Haines, S. C.

AU - Hall, S.

AU - Hampson, T.

AU - Hansmann-Menzemer, S.

AU - Harnew, N.

AU - Harnew, S. T.

AU - Harrison, J.

AU - Harrison, P. F.

AU - Hartmann, T.

AU - He, J.

AU - Heijne, V.

AU - Hennessy, K.

AU - Henrard, P.

AU - Morata, J. A.Hernando

AU - Van Herwijnen, E.

AU - Hicks, E.

AU - Hill, D.

AU - Hoballah, M.

AU - Hopchev, P.

AU - Hulsbergen, W.

AU - Hunt, P.

AU - Huse, T.

AU - Hussain, N.

AU - Huston, R. S.

AU - The LHCb Collaboration

PY - 2013/10/4

Y1 - 2013/10/4

N2 - The angular distribution and differential branching fraction of the decay B+→ K+μ+μ- are studied with a dataset corresponding to 1.0 fb-1 of integrated luminosity, collected by the LHCb experiment. The angular distribution is measured in bins of dimuon invariant mass squared and found to be consistent with Standard Model expectations. Integrating the differential branching fraction over the full dimuon invariant mass range yields a total branching fraction of β(B +→ K+μ+μ-) = (4:36±0:15±0:18)×10-7. These measurements are the most precise to date of the B+→ K+μ +μ- decay.

AB - The angular distribution and differential branching fraction of the decay B+→ K+μ+μ- are studied with a dataset corresponding to 1.0 fb-1 of integrated luminosity, collected by the LHCb experiment. The angular distribution is measured in bins of dimuon invariant mass squared and found to be consistent with Standard Model expectations. Integrating the differential branching fraction over the full dimuon invariant mass range yields a total branching fraction of β(B +→ K+μ+μ-) = (4:36±0:15±0:18)×10-7. These measurements are the most precise to date of the B+→ K+μ +μ- decay.

KW - B-physics

KW - Rare decays

UR - http://www.scopus.com/inward/record.url?scp=84884593594&partnerID=8YFLogxK

U2 - 10.1007/JHEP02(2013)105

DO - 10.1007/JHEP02(2013)105

M3 - Article

AN - SCOPUS:84884593594

VL - 2013

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 2

M1 - 105