First Observation of B+ to rho+ K0 and Measurement of its Branching Fraction and Charge Asymmetry

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We present the first observation of the decay B{sup +} {yields} {rho}{sup +}K{sup 0}, using a data sample of 348 fb{sup -1} collected at the {Upsilon}(4S) resonance with the BABAR detector. The branching fraction and charge asymmetry are measured to be (8.0{sub -1.3}{sup +1.4} {+-} 0.5) x 10{sup -6} and (-12.2 {+-} 16.6 {+-} 2.0)%, respectively, where the first uncertainty is statistical and the second is systematic. The significance of the observed branching fraction, including systematic uncertainties, is 7.9 standard deviations.

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7 pages

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Aubert, B. March 6, 2007.

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We present the first observation of the decay B{sup +} {yields} {rho}{sup +}K{sup 0}, using a data sample of 348 fb{sup -1} collected at the {Upsilon}(4S) resonance with the BABAR detector. The branching fraction and charge asymmetry are measured to be (8.0{sub -1.3}{sup +1.4} {+-} 0.5) x 10{sup -6} and (-12.2 {+-} 16.6 {+-} 2.0)%, respectively, where the first uncertainty is statistical and the second is systematic. The significance of the observed branching fraction, including systematic uncertainties, is 7.9 standard deviations.

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7 pages

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http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-12210.html

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  • Journal Name: Physical Review Letters

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  • Report No.: SLAC-PUB-12210
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 900603
  • Archival Resource Key: ark:/67531/metadc883687

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  • March 6, 2007

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  • Sept. 22, 2016, 2:13 a.m.

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  • Dec. 7, 2016, 11:48 a.m.

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Aubert, B. First Observation of B+ to rho+ K0 and Measurement of its Branching Fraction and Charge Asymmetry, article, March 6, 2007; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc883687/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.