| PUB-03/030 Observation of a Narrow Meson Decaying to Ds+ pizero gamma at a Mass of 2.458 GeV/c^2 |
| Doc Type |
Journal Papers |
| Record Created |
August 14, 2003 |
| SLAC-PUB |
| Preprint # |
hep-ex/0310050 |
| Comments |
Submitted to Physical Review Letters, 24 October 2003, Resubmitted to Physical Review D, Rapid Communications, 25 November 2003, accepted Jan 2, 2004 |
| Abstract |
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A narrow state, which we label DsJ(2458)+, with mass
2458.0 +/- 1.0(stat.) +/- 1.0(syst.) MeV/c^2,
is observed in the inclusive Ds+ pi0 \gamma$ mass distribution
in 91 fb-1 of e^+e^- annihilation data recorded by the
BABAR detector at the PEP-II asymmetric-energy e^+e^- storage ring.
The observed width is consistent with the experimental
resolution. The data favor decay through Ds*(2112)+ pi0 and
an angular analysis of this decay mode disfavors JP = 0-.
An analysis of Ds+ pi0 data accounting for the influence of the
DsJ(2458)+ produces a DsJ*(2317)+ mass of
2317.3 +/- 0.4(stat.) +/- 0.8(syst.) MeV/c^2.
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| Revisions and Files |
1 revised August 14, 2003
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| 17-NOV-2003 |
abstract.txt |
Abstract |
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| 17-NOV-2003 |
babar-pub-03030.ps |
Paper (journal paper or conference submission by BABAR Collaboration) |
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| 17-NOV-2003 |
fig01.eps |
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| 12-JAN-2004 |
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| 17-NOV-2003 |
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| 12-JAN-2004 |
fig02.eps |
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| 17-NOV-2003 |
fig03.eps |
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| 12-JAN-2004 |
fig03.eps |
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| 12-JAN-2004 |
note629.ps |
Paper (journal paper or conference submission by BABAR Collaboration) |
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768.36 |
Final version of the paper |
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| Submitted To | Physical Review D - Rapid Communications |
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| Date Submitted | October 24, 2003 |
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| Journal Year | 2004 |
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| Journal Volume | 69 |
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| Journal Article/Page Range | 031101 |
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