Observation of new resonances decaying to<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>D</mml:mi><mml:mi>π</mml:mi></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>D</mml:mi><mml:mo>*</mml:mo></mml:msup><mml:mi>π</mml:mi></mml:math>in inclusive<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>e</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>e</mml:mi><mml:mo>−</mml:mo></mml:msup></mml:math>collisions near<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:mn>10.58</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>GeV</mml:mi></mml:math>

2010151 citationsJournal Articlebronze Open Access

Authors

P. del Amo Sanchez · Institut National de Physique Nucléaire et de Physique des Particules

J. P. Lees · Institut National de Physique Nucléaire et de Physique des Particules

V. Poireau · Institut National de Physique Nucléaire et de Physique des Particules

E. Prencipe · Laboratoire d’Annecy de Physique des Particules

V. Tisserand · Centre National de la Recherche Scientifique

J. Garra Ticó · Universitat de Barcelona

Abstract

We present a study of the ${D}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$, ${D}^{0}{\ensuremath{\pi}}^{+}$, and ${D}^{*+}{\ensuremath{\pi}}^{\ensuremath{-}}$ systems in inclusive ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}c\overline{c}$ interactions in a search for new excited $D$ meson states. We use a data set, consisting of $\ensuremath{\sim}454\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$, collected at center-of-mass energies near 10.58 GeV by the BABAR detector at the SLAC PEP-II asymmetric-energy collider. We observe, for the first time, candidates for the radial excitations of the ${D}^{0}$, ${D}^{*0}$, and ${D}^{*+}$, as well as the $L=2$ excited states of the ${D}^{0}$ and ${D}^{+}$, where $L$ is the orbital angular momentum of the quarks.

Topics & Keywords

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

Publication Details

Published in: Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology

Volume 82, Issue 11

DOI: 10.1103/physrevd.82.111101

Field-Weighted Citation Impact: 24.73

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