Production of charmed particles in 250 GeV μ+-iron interactions

Aubert, J.J.; Dobinson, R.; Dosselli, U.; Edwards, A.; Gabathuler, E.; Gregory, P.; Haas, J.; Leenen, M.; Montgomery, H. E.; Osborne, A.M.; Bassompierre, G.; Bouard, X. De; Broll, C.; Coignet, G.; Crespo, J.M.; Déclais, Y.; Favier, Jean; Maire, M.; Massonnet, L.; Minssieux, H.; Payre, P.; Pessard, H.; Schneegans, M.; Thénard, J.M.; Urbán, L.; Best, C.; Carr, J.; Clifft, R. W.; Edwards, M.; Norton, P. R.; Thompson, J.C.; Brasse, F.W.; Flauger, W.; Gayler, J.; Goessling, C.; Korbel, V.; Becks, K. H.; Boehm, E.; Brown, S.; Cobb, J.H.; Combley, F.; D’Agostini, G.; Dalpiaz, P.; Dau, W.D.; Davies, Joshua; Drees, J.; Ferrero, M. I.; Gamet, R.; Gerhardt, V.; Hamacher, K.; Hayman, P.; Henckes, M.; Landgraf, U.; Mohr, W.; Moser, K.; Mount, R.; McNicholas, J.; Peroni, C.; Pietrzyk, U.; Rith, Klaus; Sloan, T.; Stier, H. E.; Stockhausen, W.; Villers, M.; Wahlen, H.; Whalley, M. R.; Williams, D. C.; Williams, W. S. C.; Williamson, J.; Wimpenny, S.

doi:10.1016/0550-3213(83)90174-8

Cited by 196 publications

(94 citation statements)

References 43 publications

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“…The data from the European Muon Collaboration (EMC) experiment [6], show an excess of events in the charm quark distribution at the largest measured x bj , beyond predictions based on gluon splitting and DGLAP evolution. Next-to-leading order (NLO) analyses [7] show that an intrinsic charm component, with probability of order 1%, is allowed by the EMC data in the large x bj region.…”

Section: Introductionmentioning

confidence: 96%

Higgs hadroproduction at large Feynman x

et al. 2009

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We propose a novel mechanism for the production of the Higgs boson in inclusive hadronic collisions, which utilizes the presence of heavy quarks in the proton wave function. In these inclusive reactions the Higgs boson acquires the momenta of both the heavy quark and antiquark and thus carries 80% or more of the projectile's momentum. We predict that the cross section dσ/dx F (pp → HX) for the inclusive production of the Standard Model Higgs coming from intrinsic bottom Fock states is of order 150 fb at LHC energies, peaking in the region of x F ∼ 0.9. Our estimates indicate that the corresponding cross section coming from gluon-gluon fusion at x F = 0.9 is relatively negligible and therefore the peak from intrinsic bottom should be clearly visible for experiments with forward detection capabilities. The predicted cross section for the production of the Standard Model Higgs coming from * Electronic address: sjbth@slac.stanford.

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Section: Introductionmentioning

confidence: 96%

Higgs hadroproduction at large Feynman x

et al. 2009

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“…The low energy data for electroproduction are from Ref. [30,31] and the high energy data from H1 [32]. The latter data correspond to Q 2 values slightly different from those of the low energy data and of our calculations.…”

Section: Charm Photo-and Electroproductionmentioning

confidence: 62%

“…All curves are rescaled with powers of 10; the k-th curve from the top is rescaled with a factor 10 −k . The data are from [28][29][30]32]. 0 .…”

Section: Discussionmentioning

confidence: 99%

Charm production in deep inelastic and diffractive scattering

1998

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We consider the production of charm by real and virtual photons. Special attention is paid to diffractive charm production, which provides information on the gluonic content of the Pomeron. Our calculations are based on the gluon distributions of the CKMT-model, which is shown to lead to agreement with the data on open charm production in deep inelastic scattering. We compare predictions for diffractive charm production of different models for the distribution of gluons in the Pomeron. Experiments at HERA should be able to discriminate between them. Predictions for beauty production in diffractive and non-diffractive interactions of photons are also given.

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“…While the first experimental evidence of intrinsic heavy quarks came from the EMC measurement of the large x charm structure function [58], a variety of other charm hadron and charmonium measurements are consistent with the existence of intrinsic charm. Open charm observables in hadroproduction include forward Λ c production at the ISR [59] and asymmetries between leading and nonleading charm (D mesons which share valence quarks with the projectile and D mesons which do not, respectively) measured as functions of x F and p T in fixed-target experiments, WA89 and WA82 at CERN; E791 and SELEX at Fermilab, see Refs.…”

Section: Heavy Flavors In the Protonmentioning

confidence: 99%