Total forward and differential cross sections of neutral D mesons produced in 500 GeV/c π−–nucleon interactions

Aitala, E. M.; Amato, S.; Anjos, J. C.; Appel, J. A.; Ashery, D.; Banerjee, S.; Bediaga, I.; Blaylock, G.; Bracker, Stephen B.; Burchat, P. R.; Burnstein, R. A.; Carter, T; Carvalho, H. S.; Copty, N.; Cremaldi, L.; Darling, C.; Denisenko, K.; Devmal, S.; Fernández, A.; Fox, G. F.; Gagnon, P.; Göbel, C.; Gounder, K.; Halling, A. M.; Herrera, G.; Hurvits, G.; James, C.; Kasper, P. A.; Kwan, S.; Langs, D. C.; Leslie, J. R.; Lundberg, B.; Magnin, J.; MayTal‐Beck, S.; Meadows, B.; Neto, J. R. T. de Mello; Mihalcea, D.; Milburn, R. H.; Miranda, J. M. De; Napier, A.; Nguyen, A.; D’Oliveira, A.; O’Shaughnessy, K.; Peng, K.C.; Perera, L. P.; Purohit, M. V.; Quinn, B.; Radeztsky, S.; Rafatian, A.; Reay, N. W.; Reidy, J.; Reis, A. C. dos; Rubin, H. A.; Sanders, D. A.; Santha, A.K.S.; Santoro, A.; Schwartz, A. J.; Sheaff, M.; Sidwell, R. A.; Slaughter, A. J.; Solano, J.; Stanton, N. R.; Stefanski, R. J.; Stenson, K.; Summers, D. J.; Takach, S.; Thorne, K. A.; Tripathi, A.; Watanabe, Shuji; Weiss-Babai, R.; Wiener, J.; Witchey, N.; Wolin, E.; Yang, S.; Duan, Yi; Yoshida, S.; Zaliznyak, R.; Zhang, C

doi:10.1016/s0370-2693(99)00900-4

Cited by 11 publications

(11 citation statements)

References 45 publications

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“…The measurements made by E791 [26] in 500 GeV πA collisions using a high statistics sample of 80k reconstructed D 0 mesons also show a similar discrepancy. They obtain an improved fit with the function given in Eq.…”

Section: Differential Cross Sectionsmentioning

confidence: 66%

“…2. The values corresponding to the choice x b = 0.062 [26] and x b = 0 are 0.542±0.048 and 0.558±0.051, respectively. The difference is small compared to the uncertainty due to the error of the parameter n. For the extrapolation the average of both numbers, f vis = 0.55 ± 0.05, is used.…”

Section: Total Cross Sectionsmentioning

confidence: 99%

“…For the transverse momentum distribution, several parameterisations can been found in the literature [2,26,30]. In the present analysis, the parameterisation given in Eq.…”

Section: Differential Cross Sectionsmentioning

confidence: 99%

“…5.2). The value n = 7.7 ± 1.4 is taken from the average of E743 and E653 [6,7], and x b is assumed to be 0.062 ± 0.013 as measured by the E791 experiment [26]. The influence of the parameter uncertainties and other possible parameterisations of Eqs.…”

Section: Efficiency Determinationmentioning

confidence: 99%

“…In our analysis of the measured differential cross section dσ/dx F (Fig. 6(b)), the boundary parameter x b was fixed to the value x b = 0.062 as measured by E791 [26], because our range of −0.15 < x F < 0.05 is too small to determine this parameter. The exponent n, is extracted by simultaneously fitting the D 0 and D + data samples with a likelihood fit to the events in the signal windows and sidebands.…”

Section: Differential Cross Sectionsmentioning

confidence: 99%

See 4 more Smart Citations

Measurement of D0, D+, Ds + and D*+ production in fixed target 920 GeV proton–nucleus collisions

Abt¹,

Adams²,

Agari³

et al. 2007

Eur. Phys. J. C

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Abstract. The inclusive production cross sections of the charmed mesons D 0 , D + , D + s and D * + have been measured in interactions of 920 GeV protons on C, Ti, and W targets with the HERA-B detector at the HERA storage ring. Differential cross sections as a function of transverse momentum and Feynman's x variable are given for the central rapidity region and for transverse momenta up to pT = 3.5 GeV/c. The atomic mass number dependence and the leading to non-leading particle production asymmetries are presented as well.

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Section: Differential Cross Sectionsmentioning

confidence: 66%

Section: Total Cross Sectionsmentioning

confidence: 99%

“…For the transverse momentum distribution, several parameterisations can been found in the literature [2,26,30]. In the present analysis, the parameterisation given in Eq.…”

Section: Differential Cross Sectionsmentioning

confidence: 99%

Section: Efficiency Determinationmentioning

confidence: 99%

Section: Differential Cross Sectionsmentioning

confidence: 99%

See 3 more Smart Citations

Measurement of D0, D+, Ds + and D*+ production in fixed target 920 GeV proton–nucleus collisions

Abt¹,

Adams²,

Agari³

et al. 2007

Eur. Phys. J. C

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Prompt neutrinos and intrinsic charm at SHiP

Bai

Reno

2019

J. High Energ. Phys.

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We present a new evaluation of the far-forward neutrino plus antineutrino flux and number of events from charm hadron decays in a 400 GeV proton beam dump experiment like the Search for Hidden Particles (SHiP). Using next-to-leading order perturbative QCD and a model for intrinsic charm, we include intrinsic transverse momentum effects and other kinematic angular corrections. We compare this flux to a far-forward flux evaluated with next-to-leading order perturbative QCD, without intrinsic transverse momentum, that used the angular distribution of charm quarks rather than the neutrinos from their decays. The tau neutrino plus antineutrino number of events in the perturbative QCD evaluation is reduced by a factor of about three when intrinsic transverse momentum and the full decay kinematics are included. We show that intrinsic charm contributions can significantly enhance the number of events from neutrinos from charm hadron decays. Measurements of the number of events from tau neutrino plus antineutrino interactions and of the muon charge asymmetry as a function of energy can be used to constrain intrinsic charm models.

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Heavy-flavour hadro-production from fixed-target to collider energies

2006

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We review the hadro-production data presently available on open charm and beauty absolute production cross-sections, collected by experiments at CERN, DESY and Fermilab. The published charm production cross-section values are updated, in particular for the "time evolution" of the branching ratios. These measurements are compared to LO pQCD calculations, as a function of the collision energy, using recent parameterisations of the parton distribution functions. We then estimate, including nuclear effects on the parton densities, the charm and beauty production cross-sections relevant for measurements at SPS and RHIC energies, in proton-proton, proton-nucleus and nucleus-nucleus collisions. The calculations are also compared with measurements of single D and B kinematical distributions, and DD pair correlations. We finish with two brief comments, concerning the importance of beauty production as a feed-down source of J/ψ production, and open charm measurements performed using leptonic decays.

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Total forward and differential cross sections of neutral D mesons produced in 500 GeV/c π−–nucleon interactions

Cited by 11 publications

References 45 publications

Measurement of D0, D+, Ds + and D*+ production in fixed target 920 GeV proton–nucleus collisions

Measurement of D0, D+, Ds + and D*+ production in fixed target 920 GeV proton–nucleus collisions

Prompt neutrinos and intrinsic charm at SHiP

Heavy-flavour hadro-production from fixed-target to collider energies

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