Measurement of ϒ production in pp collisions at √s =7 TeV

The LHCb Collaboration

doi:10.1140/epjc/s10052-012-2025-y

Measurement of ϒ production in pp collisions at √s =7 TeV

The LHCb Collaboration

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

115 Citations (Scopus)

Abstract

The production of ϒ (1S), ϒ (2S) and ϒ (3S) mesons in proton-proton collisions at the centre-of-mass energy of √s = 7 TeV is studied with the LHCb detector. The analysis is based on a data sample of 25 pb⁻¹ collected at the Large Hadron Collider. The ϒ mesons are reconstructed in the decay mode ϒ →μ ⁺ μ ⁻ and the signal yields are extracted from a fit to the μ ⁺ μ ⁻ invariant mass distributions. The differential production cross-sections times dimuon branching fractions are measured as a function of the ϒ transverse momentum p_T and rapidity y, over the range p_T < 15 GeV/c and 2.0<y <4.5. The cross-sections times branching fractions, integrated over these kinematic ranges, are measured to be σ(pp→ϒ (1S)X)×B(ϒ (1S)→μ ⁺ μ ⁻) = 2.29 ± 0.01 ± 0.10^+0.19 _−0.37 nb, σ(pp→ϒ (2S)X)×B(ϒ (2S)→μ ⁺ μ ⁻) = 0.562±0.007±0.023^+0.048 _−0.092 nb, σ(pp→ϒ (3S)X)×B(ϒ (3S)→μ ⁺ μ ⁻) = 0.283±0.005±0.012^+0.025 _−0.048 nb, where the first uncertainty is statistical, the second systematic and the third is due to the unknown polarisation of the three ϒ states.

Original language	English
Article number	2025
Number of pages	12
Journal	European Physical Journal C
Volume	72
Issue number	6
DOIs	https://doi.org/10.1140/epjc/s10052-012-2025-y
Publication status	Published - 7 Jun 2012
Externally published	Yes

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10.1140/epjc/s10052-012-2025-y

Cite this

@article{1383d06e63de423e92a2334dcdc88b66,

title = "Measurement of ϒ production in pp collisions at √s =7 TeV",

abstract = "The production of ϒ (1S), ϒ (2S) and ϒ (3S) mesons in proton-proton collisions at the centre-of-mass energy of √s = 7 TeV is studied with the LHCb detector. The analysis is based on a data sample of 25 pb−1 collected at the Large Hadron Collider. The ϒ mesons are reconstructed in the decay mode ϒ →μ + μ − and the signal yields are extracted from a fit to the μ + μ − invariant mass distributions. The differential production cross-sections times dimuon branching fractions are measured as a function of the ϒ transverse momentum pT and rapidity y, over the range pT < 15 GeV/c and 2.0+ μ −) = 2.29 ± 0.01 ± 0.10+0.19 −0.37 nb, σ(pp→ϒ (2S)X)×B(ϒ (2S)→μ + μ −) = 0.562±0.007±0.023+0.048 −0.092 nb, σ(pp→ϒ (3S)X)×B(ϒ (3S)→μ + μ −) = 0.283±0.005±0.012+0.025 −0.048 nb, where the first uncertainty is statistical, the second systematic and the third is due to the unknown polarisation of the three ϒ states.",

author = "R. Aaij and Beteta, {C. Abellan} 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 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 L. Arrabito and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and S. Bachmann and Back, {J. J.} and Bailey, {D. S.} 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 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 {De Bruyn}, K. 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 N. Chiapolini 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 P. Collins and A. Comerma-Montells and F. Constantin and A. Contu and A. Cook and M. Coombes and G. Corti and B. Couturier and Cowan, {G. A.} and R. Currie and C. D{\textquoteright}Ambrosio and P. David and David, {P. N.Y.} and {De Bonis}, I. and {De Capua}, S. and {De Cian}, M. and {De Lorenzi}, F. 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 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 Ch Elsasser and D. Elsby and Pereira, {D. Esperante} and A. Falabella and E. Fanchini and C. F{\"a}rber and G. Fardell and C. Farinelli and S. Farry and V. Fave and Albor, {V. Fernandez} 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 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 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 R. Harji and N. Harnew 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 K. Holubyev 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 J. Imong and R. Jacobsson and A. Jaeger and Hussein, {M. Jahjah} and E. Jans and F. Jansen and P. Jaton and {The LHCb Collaboration}",

year = "2012",

month = jun,

day = "7",

doi = "10.1140/epjc/s10052-012-2025-y",

language = "English",

volume = "72",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer",

number = "6",

}

TY - JOUR

T1 - Measurement of ϒ production in pp collisions at √s =7 TeV

AU - Aaij, R.

AU - Beteta, C. Abellan

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 - 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 - Arrabito, L.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Bachmann, S.

AU - Back, J. J.

AU - Bailey, D. S.

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 - 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 - De Bruyn, K.

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 - Chiapolini, N.

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 - Collins, P.

AU - Comerma-Montells, A.

AU - Constantin, F.

AU - Contu, A.

AU - Cook, A.

AU - Coombes, M.

AU - Corti, G.

AU - Couturier, B.

AU - Cowan, G. A.

AU - Currie, R.

AU - D’Ambrosio, C.

AU - David, P.

AU - David, P. N.Y.

AU - De Bonis, I.

AU - De Capua, S.

AU - De Cian, M.

AU - De Lorenzi, F.

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 - 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 - Elsasser, Ch

AU - Elsby, D.

AU - Pereira, D. Esperante

AU - Falabella, A.

AU - Fanchini, E.

AU - Färber, C.

AU - Fardell, G.

AU - Farinelli, C.

AU - Farry, S.

AU - Fave, V.

AU - Albor, V. Fernandez

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, 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 - 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 - Harji, R.

AU - Harnew, N.

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 - Holubyev, K.

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 - Imong, J.

AU - Jacobsson, R.

AU - Jaeger, A.

AU - Hussein, M. Jahjah

AU - Jans, E.

AU - Jansen, F.

AU - Jaton, P.

AU - The LHCb Collaboration

PY - 2012/6/7

Y1 - 2012/6/7

N2 - The production of ϒ (1S), ϒ (2S) and ϒ (3S) mesons in proton-proton collisions at the centre-of-mass energy of √s = 7 TeV is studied with the LHCb detector. The analysis is based on a data sample of 25 pb−1 collected at the Large Hadron Collider. The ϒ mesons are reconstructed in the decay mode ϒ →μ + μ − and the signal yields are extracted from a fit to the μ + μ − invariant mass distributions. The differential production cross-sections times dimuon branching fractions are measured as a function of the ϒ transverse momentum pT and rapidity y, over the range pT < 15 GeV/c and 2.0+ μ −) = 2.29 ± 0.01 ± 0.10+0.19 −0.37 nb, σ(pp→ϒ (2S)X)×B(ϒ (2S)→μ + μ −) = 0.562±0.007±0.023+0.048 −0.092 nb, σ(pp→ϒ (3S)X)×B(ϒ (3S)→μ + μ −) = 0.283±0.005±0.012+0.025 −0.048 nb, where the first uncertainty is statistical, the second systematic and the third is due to the unknown polarisation of the three ϒ states.

AB - The production of ϒ (1S), ϒ (2S) and ϒ (3S) mesons in proton-proton collisions at the centre-of-mass energy of √s = 7 TeV is studied with the LHCb detector. The analysis is based on a data sample of 25 pb−1 collected at the Large Hadron Collider. The ϒ mesons are reconstructed in the decay mode ϒ →μ + μ − and the signal yields are extracted from a fit to the μ + μ − invariant mass distributions. The differential production cross-sections times dimuon branching fractions are measured as a function of the ϒ transverse momentum pT and rapidity y, over the range pT < 15 GeV/c and 2.0+ μ −) = 2.29 ± 0.01 ± 0.10+0.19 −0.37 nb, σ(pp→ϒ (2S)X)×B(ϒ (2S)→μ + μ −) = 0.562±0.007±0.023+0.048 −0.092 nb, σ(pp→ϒ (3S)X)×B(ϒ (3S)→μ + μ −) = 0.283±0.005±0.012+0.025 −0.048 nb, where the first uncertainty is statistical, the second systematic and the third is due to the unknown polarisation of the three ϒ states.

UR - http://www.scopus.com/inward/record.url?scp=84937645917&partnerID=8YFLogxK

U2 - 10.1140/epjc/s10052-012-2025-y

DO - 10.1140/epjc/s10052-012-2025-y

M3 - Article

AN - SCOPUS:84937645917

SN - 1434-6044

VL - 72

JO - European Physical Journal C

JF - European Physical Journal C

IS - 6

M1 - 2025

ER -

Measurement of ϒ production in pp collisions at √s =7 TeV

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