Inclusive<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>D</mml:mi></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>D</mml:mi></mml:mrow><mml:mrow><mml:mo>*</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>Production in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi>e</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow><mml:mrow><mml:msup><mml:mrow><mml:mi>e</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>Annihilation at 29 GeV

198344 citationsJournal Articlegreen Open Access

Authors

S. P. Ahlen · Argonne National Laboratory

C. Akerlof · Argonne National Laboratory

G. Baranko · Purdue University West Lafayette

P. Baringer · Argonne National Laboratory

I. Beltrami · Indiana University Bloomington

Daniel E. Bender · Argonne National Laboratory

D. Blockus ·

Abstract

Inclusive production of (${D}^{0}$, ${\overline{D}}^{0}$) and ${D}^{\ifmmode\pm\else\textpm\fi{}}$ mesons have been observed in ${e}^{+}{e}^{\ensuremath{-}}$ annihilation at 29 GeV. The signals correspond to $R$ values of $R({D}^{0}+{\overline{D}}^{0})=3.25\ifmmode\pm\else\textpm\fi{}1.2$ and $R({D}^{+}+{D}^{\ensuremath{-}})=1.35\ifmmode\pm\else\textpm\fi{}0.6$. ${D}^{*\ifmmode\pm\else\textpm\fi{}}$ production is also observed via the process ${D}^{*+}\ensuremath{\rightarrow}{D}^{0}{\ensuremath{\pi}}^{+}$ and its charge conjugate. The $D$ and ${D}^{*}$ production rates are compared.

Topics & Keywords

Particle physics theoretical and experimental studies High-Energy Particle Collisions Research Quantum Chromodynamics and Particle Interactions

Publication Details

Published in: Physical Review Letters

Volume 51, Issue 13, pp. 1147-1150

DOI: 10.1103/physrevlett.51.1147

Field-Weighted Citation Impact: 11.19

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Publication Details