Title of article
Total forward and differential cross sections of neutral D mesons produced in 500 GeV/c π−–nucleon interactions
Author/Authors
Fermilab E791 Collaboration، نويسنده , , E.M. Aitala، نويسنده , , S Amato، نويسنده , , J.C. Anjos، نويسنده , , J.A. Appel، نويسنده , , D Ashery، نويسنده , , S Banerjee، نويسنده , , I. Bediaga، نويسنده , , G Blaylock، نويسنده , , S.B. Bracker، نويسنده , , P.R. Burchat، نويسنده , , R.A. Burnstein، نويسنده , , T Carter، نويسنده , , H.S. Carvalho، نويسنده , , N.K. Copty، نويسنده , , L.M. Cremaldi، نويسنده , , C Darling، نويسنده , , K Denisenko، نويسنده , , S. Devmal، نويسنده , , A Fernandez، نويسنده , , et al.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1999
Pages
12
From page
225
To page
236
Abstract
We measure the neutral D total forward cross section and the differential cross sections as functions of Feynman-x (xF) 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 D0→K−π+ and D0→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 xF distribution, 0.0131±0.0038. We measure an absolute D0+D0 (xF>0) cross section of 15.4+1.8−2.3 μbarn/nucleon (assuming a linear A dependence). The differential and total forward cross sections are compared to theoretical predictions and to results of previous experiments.
Journal title
PHYSICS LETTERS B
Serial Year
1999
Journal title
PHYSICS LETTERS B
Record number
911948
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