We report on a measurement of the Cabibbo-Kobayashi-Maskawa CP-violating phase gamma through a Dalitz analysis of neutral D decays to K0(S)pi-pi+ in the processes B+/- -->D*K+/-, D*-->Dpi0, Dgamma. Using a sample of 227 x 10(6) BB pairs collected by the BABAR detector, we measure the amplitude ratios r(B)=0.12+/-0.03+/-0.04 and r*(B)=0.17+/-0.10+/-0.03+/-0.03, the relative strong phases delta(B)=(104+/-45(+17+16)(-21-24))degrees and delta*(B)=(-64+/-41(+14)(-12)+/-15) degrees between the amplitudes A(B- -->D*0K-) and A(B- -->D*0)K-), and gamma=(70+/-31(+12+14)(-10-11))degrees. The first error is statistical, the second is the experimental systematic uncertainty, and the third reflects the Dalitz model uncertainty. The results for the strong and weak phases have a twofold ambiguity.

Download full-text PDF

Source
http://dx.doi.org/10.1103/PhysRevLett.95.121802DOI Listing

Publication Analysis

Top Keywords

measurement cabibbo-kobayashi-maskawa
8
dalitz analysis
8
ab- -->d*0k-
8
cabibbo-kobayashi-maskawa angle
4
angle gamma
4
gamma b+/--->d*k+/-
4
b+/--->d*k+/- decays
4
decays dalitz
4
analysis d-->k0spi-pi+
4
d-->k0spi-pi+ report
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!