Two recent results on B physics from CDF

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Preliminary results from two recent CDF b physics analyses are presented. The first obtains sin(2{beta})=0.79<sup>+0.41</sup><sub>-0.44</sub> from a measurement of the asymmetry in B<sup>0</sup>, {anti B<sup>0</sup>} {yields} J/{psi}K<sup>0</sup><sub>s</sub> decays, providing the best direct indication so far that CP invariance is violated in the b sector. The second obtains new results on the parity even (A<sub>0</sub> and A<sub>{parallel}</sub>) and odd (A<sub>{perpendicular}</sub>) polarization amplitudes from full angular analyses of B<sup>0</sup> {yields} J/{psi}K*<sup>0</sup> and B<sup>0</sup><sub>s</sub> {yields} J/{psi}{phi} decays: B<sup>0</sup>: {A<sub>0</sub> = 0.770 &plusmn; 0.039 &plusmn; 0.012; A<sub>{parallel}</sub> = (0.530 &plusmn; 0.106 &plusmn; 0.034)e<sup>(2.16 &plusmn; 0.46 &plusmn; 0.10)i</sup>; A<sub>{perpendicular}</sub> = (0.355 &plusmn; 0.156 &plusmn; 0.039)e<sup>(-0.56 ... continued below

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Schmidt, M. P. June 29, 1999.

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Preliminary results from two recent CDF b physics analyses are presented. The first obtains sin(2{beta})=0.79<sup>+0.41</sup><sub>-0.44</sub> from a measurement of the asymmetry in B<sup>0</sup>, {anti B<sup>0</sup>} {yields} J/{psi}K<sup>0</sup><sub>s</sub> decays, providing the best direct indication so far that CP invariance is violated in the b sector. The second obtains new results on the parity even (A<sub>0</sub> and A<sub>{parallel}</sub>) and odd (A<sub>{perpendicular}</sub>) polarization amplitudes from full angular analyses of B<sup>0</sup> {yields} J/{psi}K*<sup>0</sup> and B<sup>0</sup><sub>s</sub> {yields} J/{psi}{phi} decays: B<sup>0</sup>: {A<sub>0</sub> = 0.770 &plusmn; 0.039 &plusmn; 0.012; A<sub>{parallel}</sub> = (0.530 &plusmn; 0.106 &plusmn; 0.034)e<sup>(2.16 &plusmn; 0.46 &plusmn; 0.10)i</sup>; A<sub>{perpendicular}</sub> = (0.355 &plusmn; 0.156 &plusmn; 0.039)e<sup>(-0.56 &plusmn; 0.53 &plusmn; 0.12)i</sup>}, B<sup>0</sup><sub>s</sub>: {A<sub>0</sub> = 0.778 &plusmn; 0.090 &plusmn; 0.012; A<sub>{parallel}</sub> = (0.407 &plusmn; 0.232 &plusmn; 0.034)e<sup>(1.12 &plusmn; 1.29 &plusmn; 0.11)</sup>i; {vert_bar}A<sub>{perpendicular}</sub> = 0.478 &plusmn; 0.202 &plusmn; 0.040.

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2274 Kilobytes

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  • 34th Rencontres de Moriond: Electroweak Interactions and Unified Theories, Les Arcs, France, March 13-20, 1999

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  • Other: DE00008286
  • Report No.: FERMILAB-Conf-99/157-E
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 8286
  • Archival Resource Key: ark:/67531/metadc782100

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  • June 29, 1999

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  • Dec. 3, 2015, 9:30 a.m.

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  • Aug. 5, 2016, 5:23 p.m.

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Schmidt, M. P. Two recent results on B physics from CDF, article, June 29, 1999; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc782100/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.