A Precision Measurement of the Ds1 (2536)+ Meson Mass and Decay Width

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The decay width and the mass of the D{sub s1}(2536){sup {+-}} have been measured via the decay channel D{sub s1}{sup {+-}} {yields} D*{sup {+-}}K{sub S}{sup 0} using 232 fb{sup -1} of data collected with the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} storage ring. The result for the decay width is {Lambda}(D{sub s1}{sup {+-}}) = (1.03 {+-} 0.05 {+-} 0.12) MeV/c{sup 2}, with the first error denoting the statistical uncertainty and the second one the systematic uncertainty. For the mass, a value of m(D{sub s1}{sup {+-}}) = (2534.85 {+-} 0.02 {+-} 0.40) MeV/c{sup 2} has been obtained. The ... continued below

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19 pages

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BABAR Collaboration, September 26, 2006.

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The decay width and the mass of the D{sub s1}(2536){sup {+-}} have been measured via the decay channel D{sub s1}{sup {+-}} {yields} D*{sup {+-}}K{sub S}{sup 0} using 232 fb{sup -1} of data collected with the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} storage ring. The result for the decay width is {Lambda}(D{sub s1}{sup {+-}}) = (1.03 {+-} 0.05 {+-} 0.12) MeV/c{sup 2}, with the first error denoting the statistical uncertainty and the second one the systematic uncertainty. For the mass, a value of m(D{sub s1}{sup {+-}}) = (2534.85 {+-} 0.02 {+-} 0.40) MeV/c{sup 2} has been obtained. The systematic error is dominated by the uncertainty on the D*{sup {+-}} mass. The mass difference between the D{sub s1}{sup {+-}} and D*{sup {+-}} has been measured to be {Delta}m = (524.85 {+-} 0.02 {+-} 0.04) MeV/c{sup 2}.

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19 pages

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  • Contributed to 33rd International Conference on High Energy Physics (ICHEP 06), Moscow, Russia, 26 Jul - 2 Aug 2006

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  • Report No.: SLAC-PUB-11998
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 892636
  • Archival Resource Key: ark:/67531/metadc882914

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  • September 26, 2006

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  • Sept. 21, 2016, 2:29 a.m.

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  • Nov. 30, 2016, 5:10 p.m.

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BABAR Collaboration,. A Precision Measurement of the Ds1 (2536)+ Meson Mass and Decay Width, article, September 26, 2006; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc882914/: accessed August 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.