Study of charm correlations in π−-N interactions at GeV

Adamovich, M.; Adinolfi, M.; Alexandroy, Y.; Angelini, C.; Bacci, C.; Barberis, D.; Barney, D.; Batten, J.; Beusch, W.; Bruschini, Claudio; Cardarelli, R.; Cardini, A.; Casanova, Vincent; Ceradini, F.; Ciapetti, G.; Dameri, M.; Darbo, G.; Ciaccio, A. Di; Duane, A.; Dufey, J.P.; Farthouat, P.; Flaminio, V.; Forino, A.; French, B. R.; Frenkel, A.; Gemme, C.; Gessaroli, R.; Harrison, K.; Hurst, R. B.; Jank, W.; Kirk, A.; Lacava, F.; Lassalle, J. C.; Lazzeroni, C.; Malferrari, L.; Maljukov, S.; Martellotti, G.; Martinengo, P.; Mazzanti, P.; McEwen, J.G.; Minashvili, I.; Nechaeva, P. Y.; Nisati, A.; Orestano, D.; Osculati, B.; Passaseo, M.; Penso, G.; Petrolo, E.; Pontecorvo, L.; Quareni, A.; Ragni, P.; Rotscheidt, H.; Рыжов, Валентин Николаевич; Roda, C.; Rossi, L. P.; Russakovich, N.; Salvo, C.; Santonico, R.; Schüler, G.; Semenov, A.; Solovjev, A.G.; Torelli, Mario; Veneziano, S.; Verzocchi, M.; Websdale, D.; Weymann, M.; Zanello, L.; Zavertyaev, M.

doi:10.1016/0370-2693(95)00205-y

Cited by 12 publications

(7 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In hadro-production, D meson correlations have been measured in the experiments NA27 [21,117], WA75 [28,118], NA32 [119], E653 [120], WA92 [49,121] and E791 [122]. The correlation variables ∆x F , ∆y, ∆φ and ∆p .…”

Section: Meson Pair Correlationsmentioning

confidence: 99%

“…The WA92 Collaboration provided ∆φ, ∆y, ∆x F , M(DD), p 2 T (DD) and x F (DD) distributions [49,121], for 475 events collected in π − -Cu interactions at 350 GeV. One of the D mesons, with x F > 0, was fully reconstructed in one of the channels D → Knπ (n=1,2,3).…”

Section: Meson Pair Correlationsmentioning

confidence: 99%

“…A(x F ) has been measured in π − induced collisions by the WA82 [114], WA92 [49,121], E769 [39] and E791 [125] Collaborations. In Fig.…”

Section: Meson Pair Correlationsmentioning

confidence: 99%

See 2 more Smart Citations

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

2006

View full text Add to dashboard Cite

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.

show abstract

Section: Meson Pair Correlationsmentioning

confidence: 99%

Section: Meson Pair Correlationsmentioning

confidence: 99%

See 1 more Smart Citation

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

2006

View full text Add to dashboard Cite

show abstract

“…The results of the WA75 [5], E653 [6], ACCMOR [7], and to some extent, of the WA92 [8] collaborations show the back-to-back enhancement of the ∆φ distribution to be much weaker than the O(α 3 s ) predictions. There are less experimental results available for distributions of other kinematical variables of a charmed pair because they require a knowledge of the momenta of the charmed particles, while the fully reconstructed decays (no missing decay products) are much less numerous.…”

Section: Introductionmentioning

confidence: 99%

Momentum correlations of charmed pairs produced in π−-Cu interactions at 230 GeV/c

Rybicki¹,

Ryłko

1995

Physics Letters B

View full text Add to dashboard Cite

We study the production characteristics of 557 pairs of charmed hadrons produced in π − − Cu interactions at 230 GeV/c using a momentum estimator for charmed hadrons with missing decay products. We find, the mean value of the transverse momentum squared of the charmed pairs is

= (1.98 ± 0.11 ± 0.09) GeV 2 /c 2 , the mean rapidity difference is < |y dif f | >= 0.54 ± 0.02 ± 0.24, and the mean effective mass is = (4.45 ± 0.03 ± 0.13) GeV/c 2 . Comparing these results with the next-to-leading order QCD predictions we find an agreement for the y dif f and M ef f , whilst the measured mean value of p 2 T,sum is significantly larger than the predicted value.

show abstract

“…The E653, NA27, WA92, NA32 (200 GeV), NA32 (230 GeV), and E769 data were obtained from references [24], [25], [20], [26], [27], and [28], respectively. ferential cross sections [20,28,31], production asymmetries [20,[28][29][30][31]33], and correlations between two charm particles in the same event [3,35,36].…”

Section: Figures 5 and 6 Show A Comparison Of Our X F And Pmentioning

confidence: 99%

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

Aitala¹,

Amato²,

Anjos³

et al. 1999

Physics Letters B

View full text Add to dashboard Cite

We measure the neutral D total forward cross section and the differential cross sections as functions of Feynman-x (x F ) and transverse momentum squared for 500 GeV/c π − -nucleon interactions. The results are obtained from 88 990±460 reconstructed neutral D mesons from Fermilab experiment E791 using the decay channels D 0 → K − π + and D 0 → K − π + π − π + (and charge conjugates). We extract fit parameters from the differential cross sections and provide the first direct measurement of the turnover point in the x F distribution, 0.0131±0.0038. We measure an absolute D 0 +D 0 (x F >0) cross section of 15.4 − + 2.3 1.8 µbarns/nucleon (assuming a linear A dependence). The differential and total forward cross sections are compared to theoretical predictions and to results of previous experiments.

show abstract

Study of charm correlations in π−-N interactions at GeV

Abstract: We report on the associated production of charmed hadrons in-nucleon interactions at p s 26 GeV at the CERN 0 spectrometer. Results on the azimuthal correlation of charmed particle pairs are presented and compared to the predictions of Next-to-Leading-Order QCD calculations.

Cited by 12 publications

References 16 publications

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

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

Momentum correlations of charmed pairs produced in π−-Cu interactions at 230 GeV/c

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

Contact Info

Product

Resources

About