Observation of a narrow meson decaying to $D_s^+ \pi^0$ at a mass of 2.32-GeV/c$^2$ - INSPIRE

DataBETA

Observation of a narrow meson decaying to $D_s^+ \pi^0$ at a mass of 2.32-GeV/c $^2$

BaBar

Collaboration

Apr, 2003

7 pages

Published in:

Phys.Rev.Lett. 90 (2003) 242001

e-Print:

hep-ex/0304021 [hep-ex]

DOI:

10.1103/PhysRevLett.90.242001

PDG:

{{\mathit D}_{{{s0}}}^{*}{(2317)}}

\rightarrow

{{\mathit D}_{{{s}}}^{+}}{{\mathit \pi}^{0}}

Report number:

SLAC-PUB-9711,
BABAR-PUB-03-011

Experiments:

SLAC-PEP2-BABAR

View in:

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Abstract:

We have observed a narrow state near 2.32 GeV/c^2 in the inclusive Ds+ pi0 invariant mass distributionfrom e+e- annihilation data at energies near 10.6 GeV. The observed width is consistent with the experimental resolution. The small intrinsic width and the quantum numbers of the final state indicate that the decay violates isospin conservation. The state has natural spin-parity and the low mass suggests a JP=0+ assignment. The data sample corresponds to an integrated luminosity of 91 fb-1 recorded by the BABAR detector at the PEP2 asymmetric-energy e+e- storage ring.

Note:

7 pages, 3 figures, submitted to Phys. Rev. Lett Report-no: SLAC-PUB-9711

electron positron: colliding beams
electron positron: annihilation
meson resonance: electroproduction
meson resonance: hadronic decay
mass spectrum: (D/s+ pi0)
new particle: D/s0*(2317)
meson resonance: width
meson resonance: quantum number
isospin: violation
BaBar

References(11)

Figures(0)

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