Aubert, B;
Barate, R;
Boutigny, D;
Gaillard, JM;
Hicheur, A;
Karyotakis, Y;
Lees, JP;
... BABAR Collaboration; + view all
(2003)
Observation of a narrow meson state decaying to D-s(+)pi(0) at a mass of 2.32 GeV/c(2).
PHYS REV LETT
, 90
(24)
, Article 242001. 10.1103/PhysRevLett.90.242001.
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Abstract
We have observed a narrow state near 2.32 GeV/c(2) in the inclusive D(s)(+)pi(0) invariant mass distribution from 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 J(P)=0(+) assignment. The data sample corresponds to an integrated luminosity of 91 fb(-1) recorded by the BABAR detector at the SLAC PEP-II asymmetric-energy e(+)e(-) storage ring.
| Type: | Article |
|---|---|
| Title: | Observation of a narrow meson state decaying to D-s(+)pi(0) at a mass of 2.32 GeV/c(2) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.90.242001 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.90.242001 |
| Language: | English |
| Additional information: | © 2003 The American Physical Society |
| Keywords: | HEAVY-QUARK, SPECTROSCOPY, ANNIHILATION |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1303628 |
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