Measurement of the bottom quark production cross section in proton-antiproton collisions at √s = 0.63 TeV

Abstract

We summarize the results obtained in the UA1 experiment on the production of bottom quarks in proton-antiproton collisions at √s=0.63 TeV. Independent muon data samples are used to determine the bottom quark production cross section in different transverse momentum ranges from 6 to 30 GeV. A recent theoretical calculation to O(αs 3) of the inclusive bottom quark transverse momentum spectrum in hadronic collisions shows reasonable agreement with the data. We extrapolate the integral PT distribution to PT=0 and in rapidity to estimate the total cross section forthe production of bottom quark pairs. Assuming the shape in PT and rapidity given by the O(αs 3) calcultaion, we obtain σ(pp→bb+X) = 10.2 ±3.3 μb. © 1988

InclusiveB-meson production at the LHC in the general-mass variable-flavor-number scheme

“…In our earlier work on inclusive B-meson production at the Tevatron [13], we constructed such FFs using as input recent precise measurements of the cross section of inclusive B-meson production in e þ e À annihilation obtained by the ALEPH [15], OPAL [16], and SLD [17] collaborations. 1 These data were taken on the Z-boson resonance, so that finite-m b effects, being of relative order m 2 b =m 2 Z , are strongly suppressed, which means that we are in the asymptotic regime where the GM-VFN scheme is equivalent to the ZM-VFN scheme. The combined fit to the three data sets was performed using the NLO value à ð5Þ MS ¼ 227 MeV corresponding to ð5Þ s ðm Z Þ ¼ 0:1181, values adopted from Ref.…”

“…The first measurements were performed more than two decades ago by the UA1 Collaboration at the CERN S " ppS collider [1] operating at a center-of-mass energy of ffiffiffi S p ¼ 0:63 TeV. More recent measurements were made by the CDF and D0 collaborations at the Fermilab Tevatron running at ffiffiffi S p ¼ 1:8 TeV [2,3] and 1.96 TeV [4].…”

Measurement of theB0Production Cross Section inppCollisions ats=7 Chatrchyan1, Khachatryan2, Sirunyan3 et al. 2011Phys. Rev. Lett.Self Cite602210View full textAdd to dashboardCite

“…The total cross section for p B T > 5 GeV and jy B j < 2:2 is measured to be 33:2 AE 2:5 AE 3:5 b, where the first uncertainty is statistical and the second is systematic. DOI: 10.1103/PhysRevLett.106.252001 PACS numbers: 13.85.Rm, 12.38.Bx, 14.40.Nd Cross sections for heavy quark production in hard scattering interactions have been studied at p " p colliders at center-of-mass energies from 630 GeV [1] to 1.96 TeV [2][3][4] and in p-nucleus collisions with beam energies from 800 to 920 GeV [5]. The expected cross sections can be calculated in perturbative quantum chromodynamics.…”

B-hadron cross-section measurement in pp collisions at $\sqrt{s}=14$ TeV with the ALICE muon spectrometer

“…It was developed by the UA1 Collaboration [10,11] and is used by the CDF [12] and the D0 [13] Collaborations. It has also been used by the ALICE Collaboration to investigate the feasibility of measuring the B-hadron cross-section in pp collisions at √ s = 14 TeV with single electrons [14], in PbPb collisions at √ s NN = 5.5 TeV with single electrons [15], single muons and dimuons [16].…”