PUB-10/031 Measurement of the D_s1(2536) mass and width |
Doc Type |
Journal Papers |
Record Created |
November 25, 2010 |
SLAC-PUB |
Preprint # |
1103.2675 |
Accession Code |
DC10983 |
First Author |
Lees |
Abstract |
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The decay width and mass of the Ds1(2536)+ meson are measured via the decay channel Ds1+ -> D*+KS0 using 385 fb^-1 of data recorded with the BABAR detector in the vicinity of the Y(4S) resonance at the PEP-II asymmetric-energy electron-positron collider. The result for the decay width is 0.92 +- 0.03 (stat) +- 0.04 (syst) MeV. For the mass, a value of 2535.08 +- 0.01 +- 0.15 MeV/c^2 is obtained. The mass difference between the Ds1+ and the D*+ is measured to be 524.83 +- 0.01 +- 0.04 MeV/c^2, representing a significant improvement compared to the current world average. The unnatural spin-parity assignment for the Ds1+ meson is confirmed.
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Revisions and Files |
1 revised November 25, 2010
Submitted To | Physical Review D |
Date Submitted | March 14, 2011 |
Journal Year | 2011 |
Journal Volume | 83 |
Journal Article/Page Range | 072003 |
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