Measurement of the fraction of ϒ (1S) originating from χb(1P) decays in pp collisions at √s = 7TeV

The LHCb Collaboration

doi:10.1007/JHEP11(2012)031

Measurement of the fraction of ϒ (1S) originating from χ_b(1P) decays in pp collisions at √s = 7TeV

The LHCb Collaboration

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

29 Citations (Scopus)

Abstract

The production of χ_b(1P) mesons in pp collisions at a centre-of-mass energy of 7TeV is studied using 32 pb⁻¹ of data collected with the LHCb detector. The χ_b(1P) mesons are reconstructed in the decay mode χ_b(1P) → ϒ (1S) γ → μ⁺μ⁻γ. The fraction of ϒ (1S) originating from χb(1P) decays in the ϒ (1S) transverse momentum range 6 < p_T^ϒ(1S) < 15GeV/c and rapidity range 2.0 < y^ϒ(1S) < 4.5 is measured to be (20.7 ± 5.7 ± 2.1^+2.7_−5.4)%, where the first uncertainty is statistical, the second is systematic and the last gives the range of the result due to the unknown ϒ(1S) and χ_b(1P) polarizations.

Original language	English
Article number	31
Number of pages	15
Journal	Journal of High Energy Physics
Volume	2012
Issue number	11
DOIs	https://doi.org/10.1007/JHEP11(2012)031
Publication status	Published - 8 Nov 2012
Externally published	Yes

Keywords

Hadron-Hadron Scattering

Access to Document

10.1007/JHEP11(2012)031

Cite this

@article{091c1dfafc5543e49791076dd210093d,

title = "Measurement of the fraction of ϒ (1S) originating from χb(1P) decays in pp collisions at √s = 7TeV",

abstract = "The production of χb(1P) mesons in pp collisions at a centre-of-mass energy of 7TeV is studied using 32 pb−1 of data collected with the LHCb detector. The χb(1P) mesons are reconstructed in the decay mode χb(1P) → ϒ (1S) γ → μ+μ−γ. The fraction of ϒ (1S) originating from χb(1P) decays in the ϒ (1S) transverse momentum range 6 < pTϒ(1S) < 15GeV/c and rapidity range 2.0 < yϒ(1S) < 4.5 is measured to be (20.7 ± 5.7 ± 2.1+2.7−5.4)%, where the first uncertainty is statistical, the second is systematic and the last gives the range of the result due to the unknown ϒ(1S) and χb(1P) polarizations.",

keywords = "Hadron-Hadron Scattering",

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 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 V. Balagura and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and A. Bates and C. Bauer and Th 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 R. Bernet and Bettler, {M. O.} and {Van Beuzekom}, M. and A. Bien and S. Bifani and T. Bird and A. Bizzeti and Bj{\o}rnstad, {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 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. B{\"u}chler-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 Ch Cauet and M. Charles and Ph 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 R. Currie and C. D{\textquoteright}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 J. Dickens and H. Dijkstra and Batista, {P. Diniz} and Bonal, {F. Domingo} and S. Donleavy and F. Dordei and Su{\'a}rez, {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 F. Eisele and S. Eisenhardt and R. Ekelhof and L. Eklund and Rifai, {I. El} and Ch Elsasser and D. Elsby and Pereira, {D. Esperante} and A. Falabella and C. F{\"a}rber 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 D. Gascon and C. Gaspar and R. Gauld and N. Gauvin and E. Gersabeck and M. Gersabeck and T. Gershon and Ph Ghez and V. Gibson and Gligorov, {V. V.} and C. G{\"o}bel and D. Golubkov and A. Golutvin and A. Gomes and H. Gordon and G{\'a}ndara, {M. Grabalosa} and Diaz, {R. Graciani} and Cardoso, {L. A.Granado} and E. Graug{\'e}s and G. Graziani and A. Grecu and E. Greening and S. Gregson and O. Gr{\"u}nberg and B. Gui and E. Gushchin and Yu Guz and T. Gys and C. Hadjivasiliou and G. Haefeli and C. Haen and Haines, {S. C.} 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 M. Hoballah and P. Hopchev and W. Hulsbergen and P. Hunt and T. Huse and Huston, {R. S.} and D. Hutchcroft and D. Hynds and V. Iakovenko and P. Ilten and {The LHCb Collaboration}",

year = "2012",

month = nov,

day = "8",

doi = "10.1007/JHEP11(2012)031",

language = "English",

volume = "2012",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer-Verlag London Ltd.",

number = "11",

}

TY - JOUR

T1 - Measurement of the fraction of ϒ (1S) originating from χb(1P) decays in pp collisions at √s = 7TeV

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 - 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 - Balagura, V.

AU - Baldini, W.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Bates, A.

AU - Bauer, C.

AU - Bauer, Th

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 - Bernet, R.

AU - Bettler, M. O.

AU - Van Beuzekom, M.

AU - Bien, A.

AU - Bifani, S.

AU - Bird, T.

AU - Bizzeti, A.

AU - Bjørnstad, 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 - 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 - Büchler-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, Ch

AU - Charles, M.

AU - Charpentier, Ph

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 - 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 - Dickens, J.

AU - Dijkstra, H.

AU - Batista, P. Diniz

AU - Bonal, F. Domingo

AU - Donleavy, S.

AU - Dordei, F.

AU - Suárez, 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 - Eisele, F.

AU - Eisenhardt, S.

AU - Ekelhof, R.

AU - Eklund, L.

AU - Rifai, I. El

AU - Elsasser, Ch

AU - Elsby, D.

AU - Pereira, D. Esperante

AU - Falabella, A.

AU - Färber, 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 - Gascon, D.

AU - Gaspar, C.

AU - Gauld, R.

AU - Gauvin, N.

AU - Gersabeck, E.

AU - Gersabeck, M.

AU - Gershon, T.

AU - Ghez, Ph

AU - Gibson, V.

AU - Gligorov, V. V.

AU - Göbel, C.

AU - Golubkov, D.

AU - Golutvin, A.

AU - Gomes, A.

AU - Gordon, H.

AU - Gándara, M. Grabalosa

AU - Diaz, R. Graciani

AU - Cardoso, L. A.Granado

AU - Graugés, E.

AU - Graziani, G.

AU - Grecu, A.

AU - Greening, E.

AU - Gregson, S.

AU - Grünberg, O.

AU - Gui, B.

AU - Gushchin, E.

AU - Guz, Yu

AU - Gys, T.

AU - Hadjivasiliou, C.

AU - Haefeli, G.

AU - Haen, C.

AU - Haines, S. C.

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 - Hoballah, M.

AU - Hopchev, P.

AU - Hulsbergen, W.

AU - Hunt, P.

AU - Huse, T.

AU - Huston, R. S.

AU - Hutchcroft, D.

AU - Hynds, D.

AU - Iakovenko, V.

AU - Ilten, P.

AU - The LHCb Collaboration

PY - 2012/11/8

Y1 - 2012/11/8

N2 - The production of χb(1P) mesons in pp collisions at a centre-of-mass energy of 7TeV is studied using 32 pb−1 of data collected with the LHCb detector. The χb(1P) mesons are reconstructed in the decay mode χb(1P) → ϒ (1S) γ → μ+μ−γ. The fraction of ϒ (1S) originating from χb(1P) decays in the ϒ (1S) transverse momentum range 6 < pTϒ(1S) < 15GeV/c and rapidity range 2.0 < yϒ(1S) < 4.5 is measured to be (20.7 ± 5.7 ± 2.1+2.7−5.4)%, where the first uncertainty is statistical, the second is systematic and the last gives the range of the result due to the unknown ϒ(1S) and χb(1P) polarizations.

AB - The production of χb(1P) mesons in pp collisions at a centre-of-mass energy of 7TeV is studied using 32 pb−1 of data collected with the LHCb detector. The χb(1P) mesons are reconstructed in the decay mode χb(1P) → ϒ (1S) γ → μ+μ−γ. The fraction of ϒ (1S) originating from χb(1P) decays in the ϒ (1S) transverse momentum range 6 < pTϒ(1S) < 15GeV/c and rapidity range 2.0 < yϒ(1S) < 4.5 is measured to be (20.7 ± 5.7 ± 2.1+2.7−5.4)%, where the first uncertainty is statistical, the second is systematic and the last gives the range of the result due to the unknown ϒ(1S) and χb(1P) polarizations.

KW - Hadron-Hadron Scattering

UR - http://www.scopus.com/inward/record.url?scp=84937644669&partnerID=8YFLogxK

U2 - 10.1007/JHEP11(2012)031

DO - 10.1007/JHEP11(2012)031

M3 - Article

AN - SCOPUS:84937644669

SN - 1126-6708

VL - 2012

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 11

M1 - 31