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Measurement of the mass and width of the D_{s1}(2536)^{+} meson
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BABAR (Including:
). (2011) Measurement of the mass and width of the D_{s1}(2536)^{+} meson. Physical Review D, Vol.83 (No.7). article no. 072003 . doi:10.1103/PhysRevD.83.072003 ISSN 0556-2821.Research output not available from this repository.
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Official URL: http://dx.doi.org/10.1103/PhysRevD.83.072003
Abstract
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 Υ(4S) resonance at the PEP-II asymmetric-energy electron-positron collider. The result for the decay width is Γ(Ds1+)=0.92±0.03(stat.)±0.04(syst.) MeV. For the mass, a value of m(Ds1+)=2535.08±0.01(stat.)±0.15(syst.) MeV/c2 is obtained. The mass difference between the Ds1+ and the D*+ is measured to be m(Ds1+)-m(D*+)=524.83±0.01(stat.)±0.04(syst.) MeV/c2, 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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