Measurement of B meson production cross-sections in proton-proton collisions at $\sqrt{s}$ = 7 TeV

The production cross-sections of B mesons are measured in pp collisions at a centre-of-mass energy of 7 TeV, using data collected with the LHCb detector corresponding to a integrated luminosity of 0.36 fb(−1). The B (+), B (0) and mesons are reconstructed in the exclusive decays B (+) → J/ψK (+), B (0) → J/ψK (*0) and , with J/ψ → μ (+) μ (−), K (*0) → K (+)π(−) and ϕ → K (+) K ( )−( ). The differential cross-sections are measured as functions of B meson transverse momentum p (T) and rapidity y, in the range 0 < p (T) < 40 GeV/c and 2.0 < y < 4.5. The integrated cross-sections in the same p (T) and y ranges, including charge-conjugate states, are measured to be where the third uncertainty arises from the pre-existing branching fraction measurements.

Note:

13 pages, 12 figures, 1 table, submitted to JHEP

Hadron-Hadron Scattering
Heavy quark production
transverse momentum dependence
B0: hadroproduction
B+: hadroproduction
p p: scattering
J/psi(3100): leptonic decay
B/s0: hadroproduction
bottom meson: hadronic decay
differential cross section: measured

References(33)

Figures(0)

[1]

The $p_T$ spectrum in heavy-flavour hadroproduction.

Matteo Cacciari
(
- Orsay, LPT
)
,
Mario Greco
(
- Rome U. and
- Frascati
)
,
Paolo Nason
(
- CERN
)

- JHEP 05 (1998) 007
•
e-Print:
- hep-ph/9803400
•
DOI:
- 10.1088/1126-6708/1998/05/007

[2]

The p(T) spectrum in heavy flavor photoproduction

Matteo Cacciari
(
- SUNY, Stony Brook
)
,
Stefano Frixione
(
- INFN, Genoa
)
,
Paolo Nason
(
- INFN, Milan
)

- JHEP 03 (2001) 006
•
e-Print:
- hep-ph/0102134
•
DOI:
- 10.1088/1126-6708/2001/03/006

[3]

Theoretical predictions for charm and bottom production at the LHC

Matteo Cacciari
(
- Paris, LPTHE and
- Diderot U., Paris
)
,
Stefano Frixione
(
- CERN and
- ITPP, Lausanne
)
,
Nicolas Houdeau
(
- Paris, LPTHE
)
,
Michelangelo L. Mangano
(
- INFN, Milan Bicocca
)
,
Paolo Nason
(
- CERN and
- Milan Bicocca U.
)

et al.

- JHEP 10 (2012) 137
•
e-Print:
- 1205.6344
•
DOI:
- 10.1007/JHEP10(2012)137

[4]

QCD analysis of first $b$ cross-section data at 1.96-TeV

M. Cacciari
(
- Parma U. and
- Paris, LPTHE
)
,
S. Frixione
(
- INFN, Genoa
)
,
M.L. Mangano
(
- CERN
)
,
P. Nason
(
- INFN, Milan
)
,
G. Ridolfi
(
- INFN, Genoa
)

- JHEP 07 (2004) 033
•
e-Print:
- hep-ph/0312132
•
DOI:
- 10.1088/1126-6708/2004/07/033

[5]

Measurement of $J/\psi$ production in $pp$ collisions at $\sqrt{s}=7~\rm{TeV}$

LHCb

Collaboration

•

R. Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Eur.Phys.J.C 71 (2011) 1645
•
e-Print:
- 1103.0423
•
DOI:
- 10.1140/epjc/s10052-011-1645-y

[6]

Measurement of the Inclusive Cross Section $\sigma (pp \to b\bar{b} X \to \mu \mu X^{\prime}$ at $\sqrt{s}=7$ TeV

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- JHEP 06 (2012) 110
•
e-Print:
- 1203.3458
•
DOI:
- 10.1007/JHEP06(2012)110

[7]

Measurement of $\sigma(pp \to b \bar{b} X)$ at $\sqrt{s}=7~\rm{TeV}$ in the forward region

LHCb

Collaboration

•

R. Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Lett.B 694 (2010) 209-216
•
e-Print:
- 1009.2731
•
DOI:
- 10.1016/j.physletb.2010.10.010

[8]

Measurement of the b-hadron production cross section using decays to $D^{*}\mu^-X$ final states in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Freiburg U.
)

et al.

- Nucl.Phys.B 864 (2012) 341-381
•
e-Print:
- 1206.3122
•
DOI:
- 10.1016/j.nuclphysb.2012.07.009

[9]

Measurement of the $B^\pm$ production cross-section in $pp$ collisions at $\sqrt{s}=7$ TeV

LHCb

Collaboration

•

R. Aaij
(
- NIKHEF, Amsterdam
)

et al.

- JHEP 04 (2012) 093
•
e-Print:
- 1202.4812
•
DOI:
- 10.1007/JHEP04(2012)093

[10]

Measurement of the $B^+$ Production Cross Section in pp Collisions at $\sqrt{s} = 7$ ~TeV

CMS

Collaboration

•

Vardan Khachatryan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.Lett. 106 (2011) 112001
•
e-Print:
- 1101.0131
•
DOI:
- 10.1103/PhysRevLett.106.112001

[11]

Measurement of the $B^0$ production cross section in $pp$ Collisions at $\sqrt{s}=7$ TeV

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.Lett. 106 (2011) 252001
•
e-Print:
- 1104.2892
•
DOI:
- 10.1103/PhysRevLett.106.252001

[12]

Measurement of the Strange $B$ Meson Production Cross Section with J/Psi $\phi$ Decays in $pp$ Collisions at $\sqrt{s}=7$ TeV

CMS

Collaboration

•

Serguei Chatrchyan
(
- Yerevan Phys. Inst.
)

et al.

- Phys.Rev.D 84 (2011) 052008
•
e-Print:
- 1106.4048
•
DOI:
- 10.1103/PhysRevD.84.052008

[13]

The LHCb Detector at the LHC

LHCb

Collaboration

•

A.Augusto Alves, Jr.
(
- Rio de Janeiro, CBPF
)

et al.

- JINST 3 (2008) S08005
•
DOI:
- 10.1088/1748-0221/3/08/S08005

[14]

The LHCb Trigger and its Performance in 2011

R Aaij
(
- Nikhef, Amsterdam
)
,
J Albrecht
(
- CERN
)
,
F Alessio
(
- CERN
)
,
S Amato
(
- Rio de Janeiro Federal U.
)
,
E Aslanides
(
- Marseille, CPPM
)

et al.

- JINST 8 (2013) P04022
•
e-Print:
- 1211.3055
•
DOI:
- 10.1088/1748-0221/8/04/P04022

[15]

Review of Particle Physics (RPP)

J. Beringer
(
- LBL, Berkeley
)
,
J.F. Arguin
(
- LBL, Berkeley and
- Montreal U.
)
,
R.M. Barnett
(
- LBL, Berkeley
)
,
K. Copic
(
- LBL, Berkeley
)
,
O. Dahl
(
- LBL, Berkeley
)

et al.

- Phys.Rev.D 86 (2012) 010001
•
DOI:
- 10.1103/PhysRevD.86.010001

[16]

Decay chain fitting with a Kalman filter

Wouter D. Hulsbergen
(
- Maryland U.
)

- Nucl.Instrum.Meth.A 552 (2005) 566-575
•
e-Print:
- physics/0503191
•
DOI:
- 10.1016/j.nima.2005.06.078

[17]

A study of the radiative CASCADE transitions between the Upsilon-Prime and Upsilon resonances

Tomasz Skwarnicki
(
- Cracow, INP and
- DESY
)

[18]

PYTHIA 6.4 Physics and Manual

Torbjorn Sjostrand
(
- Lund U., Dept. Theor. Phys.
)
,
Stephen Mrenna
(
- Fermilab
)
,
Peter Z. Skands
(
- Fermilab
)

- JHEP 05 (2006) 026
•
e-Print:
- hep-ph/0603175
•
DOI:
- 10.1088/1126-6708/2006/05/026

[19]

Handling of the generation of primary events in Gauss, the LHCbsimulation framework, Nuclear Science Symposium Conference Record (NSS/MIC) (2010) 1155.