Measurement of Upsilon production in collisions at root s=2.76 TeV

LHCb collaboration

doi:10.1140/epjc/s10052-014-2835-1

Measurement of Upsilon production in collisions at root s=2.76 TeV

LHCb collaboration

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

32 Citations (Web of Science)

Abstract

The production of , and mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of collected in proton-proton collisions at a centre-of-mass energy of TeV. The differential production cross-sections times dimuon branching fractions are measured as functions of the transverse momentum and rapidity, over the ranges GeV/ and . The total cross-sections in this kinematic region, assuming unpolarised production, are measured to besigma (pp -> Upsilon(1S)X) x B(Upsilon(1S) -> mu(+)mu(-))= 1.111 +/- 0.043 +/- 0.044 nb,sigma (pp -> Upsilon(2S)X) x B(Upsilon(2S) -> mu(+)mu(-))= 0.264 +/- 0.023 +/- 0.011 nb,sigma (pp -> Upsilon(3S)X) x B(Upsilon(3S) -> mu(+)mu(-))s= 0.159 +/- 0.020 +/- 0.007 nb,where the first uncertainty is statistical and the second systematic.

Original language	English
Article number	2835
Number of pages	11
Journal	European Physical Journal C
Volume	74
Issue number	4
DOIs	https://doi.org/10.1140/epjc/s10052-014-2835-1
Publication status	Published - 29 Apr 2014
Externally published	Yes

Keywords

PP COLLISIONS
J-PSI
HADRONIC PRODUCTION
DECAY
DETECTOR
TOOL

Access to Document

10.1140/epjc/s10052-014-2835-1

Cite this

@article{9cbe902593c3414fa01ae926a5c21d8c,

title = "Measurement of Upsilon production in collisions at root s=2.76 TeV",

abstract = "The production of , and mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of collected in proton-proton collisions at a centre-of-mass energy of TeV. The differential production cross-sections times dimuon branching fractions are measured as functions of the transverse momentum and rapidity, over the ranges GeV/ and . The total cross-sections in this kinematic region, assuming unpolarised production, are measured to besigma (pp -> Upsilon(1S)X) x B(Upsilon(1S) -> mu(+)mu(-))= 1.111 +/- 0.043 +/- 0.044 nb,sigma (pp -> Upsilon(2S)X) x B(Upsilon(2S) -> mu(+)mu(-))= 0.264 +/- 0.023 +/- 0.011 nb,sigma (pp -> Upsilon(3S)X) x B(Upsilon(3S) -> mu(+)mu(-))s= 0.159 +/- 0.020 +/- 0.007 nb,where the first uncertainty is statistical and the second systematic.",

keywords = "PP COLLISIONS, J-PSI, HADRONIC PRODUCTION, DECAY, DETECTOR, TOOL",

author = "R. Aaij and B. Adeva and M. Adinolfi and A. Affolder and Z. Ajaltouni and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and P. Cartelle and A.A. Alves and S. Amato and S. Amerio and Y. Amhis and L. Anderlini and J. Anderson and R. Andreassen and M. Andreotti and J.E. Andrews and R.B. Appleby and O.A. Gutierrez and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and J.J. Back and A. Badalov and V. Balagura and W. Baldini and R.J. Barlow and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and T. Bauer and A. Bay and J. Beddow and F. Bedeschi and I. Bediaga and S. Belogurov and K. Belous and I. Belyaev and E. Ben-Haim and G. Bencivenni and S. Benson and {van den Brand}, J. and {LHCb collaboration}",

year = "2014",

month = apr,

day = "29",

doi = "10.1140/epjc/s10052-014-2835-1",

language = "English",

volume = "74",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Verlag",

number = "4",

}

TY - JOUR

T1 - Measurement of Upsilon production in collisions at root s=2.76 TeV

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Affolder, A.

AU - Ajaltouni, Z.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Ali, S.

AU - Alkhazov, G.

AU - Cartelle, P.

AU - Alves, A.A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - Anderlini, L.

AU - Anderson, J.

AU - Andreassen, R.

AU - Andreotti, M.

AU - Andrews, J.E.

AU - Appleby, R.B.

AU - Gutierrez, O.A.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Bachmann, S.

AU - Back, J.J.

AU - Badalov, A.

AU - Balagura, V.

AU - Baldini, W.

AU - Barlow, R.J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Batozskaya, V.

AU - Bauer, T.

AU - Bay, A.

AU - Beddow, J.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Belogurov, S.

AU - Belous, K.

AU - Belyaev, I.

AU - Ben-Haim, E.

AU - Bencivenni, G.

AU - Benson, S.

AU - van den Brand, J.

AU - LHCb collaboration

PY - 2014/4/29

Y1 - 2014/4/29

N2 - The production of , and mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of collected in proton-proton collisions at a centre-of-mass energy of TeV. The differential production cross-sections times dimuon branching fractions are measured as functions of the transverse momentum and rapidity, over the ranges GeV/ and . The total cross-sections in this kinematic region, assuming unpolarised production, are measured to besigma (pp -> Upsilon(1S)X) x B(Upsilon(1S) -> mu(+)mu(-))= 1.111 +/- 0.043 +/- 0.044 nb,sigma (pp -> Upsilon(2S)X) x B(Upsilon(2S) -> mu(+)mu(-))= 0.264 +/- 0.023 +/- 0.011 nb,sigma (pp -> Upsilon(3S)X) x B(Upsilon(3S) -> mu(+)mu(-))s= 0.159 +/- 0.020 +/- 0.007 nb,where the first uncertainty is statistical and the second systematic.

AB - The production of , and mesons decaying into the dimuon final state is studied with the LHCb detector using a data sample corresponding to an integrated luminosity of collected in proton-proton collisions at a centre-of-mass energy of TeV. The differential production cross-sections times dimuon branching fractions are measured as functions of the transverse momentum and rapidity, over the ranges GeV/ and . The total cross-sections in this kinematic region, assuming unpolarised production, are measured to besigma (pp -> Upsilon(1S)X) x B(Upsilon(1S) -> mu(+)mu(-))= 1.111 +/- 0.043 +/- 0.044 nb,sigma (pp -> Upsilon(2S)X) x B(Upsilon(2S) -> mu(+)mu(-))= 0.264 +/- 0.023 +/- 0.011 nb,sigma (pp -> Upsilon(3S)X) x B(Upsilon(3S) -> mu(+)mu(-))s= 0.159 +/- 0.020 +/- 0.007 nb,where the first uncertainty is statistical and the second systematic.

KW - PP COLLISIONS

KW - J-PSI

KW - HADRONIC PRODUCTION

KW - DECAY

KW - DETECTOR

KW - TOOL

U2 - 10.1140/epjc/s10052-014-2835-1

DO - 10.1140/epjc/s10052-014-2835-1

M3 - Article

VL - 74

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 4

M1 - 2835

ER -