Measurement Of Time Dependent Cp Violating Asymmetriesand Constraints On Sin 2 Beta Gamma Withpartial Reconstruction Of B To D Pi Decays
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MEASUREMENT OF TIME-DEPENDENT CP ASYMMETRIES AND CONSTRAINTS ON SIN(2 [beta] + [gamma] WITH PARTIAL RECONSTRUCTION OF B[sup 0] --] D*[sup [-+][pi][sup [+-] DECAYS.
![MEASUREMENT OF TIME-DEPENDENT CP ASYMMETRIES AND CONSTRAINTS ON SIN(2 [beta] + [gamma] WITH PARTIAL RECONSTRUCTION OF B[sup 0] --] D*[sup [-+][pi][sup [+-] DECAYS.](https://library.ardhindie.com/contents/assets/images/blank.png){kind=small}
The authors present a preliminary measurement of the time-dependent CP-violating asymmetry in decays of neutral B mesons to the final states D*[sup [-+]][pi][sup [+-]], using approximately 178 million B[bar B] events recorded by the BABAR experiment at the PEP-II d[sup +]e[sup -] storage ring. Events containing these decays are selected with a partial reconstruction technique, in which only the high-momentum [pi][sup [+-]] from the B decay and the low-momentum [pi][sup [-+]]. from the D*[sup [-+]]. decay are used. They measure the amplitude of the asymmetry to be -0.041 [+-] 0.016 (stat.) [+-] 0.010 (syst.) and determine bounds on sin(2[beta]+[gamma]).