Total Forward and Differential Cross Sections of Neutral D Mesons Produced in 500 GeV/c $π^-$-Nucleon Interactions
| dc.creator | E791 Collaboration | |
| dc.creator | Aitala, E. M. | |
| dc.date | 1999-06-23 | |
| dc.date.accessioned | 2026-07-07T11:34:32Z | |
| dc.date.available | 2026-07-07T11:34:32Z | |
| dc.description | We measure the neutral D total forward cross section and the differential cross sections as function of Feynman-x ($x_F$) and transverse momentum squared for 500 GeV/c $π^-$-nucleon interactions. The results are obtained from 88990+-460 reconstructed neutral D mesons from Fermilab experiment E791 using the decay channels $D\to K^-π^+$ and $D\to K^-π^+π^-π^+$ (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 $D^0 + \bar{D^0}$ ($x_F > 0$) cross section of 15.4+1.8-2.3 microbarns/nucleon (assuming a linear A dependence). The differential and total forward cross sections are compared to theoretical predictions and to results of previous experiments. | |
| dc.description | 16 pages with 7 figures, submitted to Physics Letters B | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9906034 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9906034 | |
| dc.identifier | Phys.Lett.B462:225-236,1999 | |
| dc.identifier | doi:10.1016/S0370-2693(99)00900-4 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/198285 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Total Forward and Differential Cross Sections of Neutral D Mesons Produced in 500 GeV/c $π^-$-Nucleon Interactions | |
| dc.type | text |