2024-03-29T07:12:27Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/285022016-06-24T10:12:14Zcom_10261_61com_10261_4col_10261_314
DIGITAL.CSIC
author
Babar Collaboration
author
López-March, Neus
author
Martínez-Vidal, Fernando
author
Milanés, Diego A.
author
Oyanguren, Arantza
author
Lees, J. P.
author
Sánchez, P. D.
2010-10-15T11:50:07Z
2010-10-15T11:50:07Z
2010-09-16
Physical Review Letters 105 (12): 121801 (2010)
0031-9007
http://hdl.handle.net/10261/28502
10.1103/PhysRevLett.105.121801
We report the measurement of the Cabibbo-Kobayashi-Maskawa CP-violating angle gamma through a Dalitz plot analysis of neutral D-meson decays to K-S(0)pi(+) pi(-) and K-S(0) K+ K- produced in the processes B--/+ -> DK -/+, B--/+ -> D* K--/+ with D* -> D pi(0), D gamma and B -/+ DK*-/+ with K*(-/+) -> K-S(0)pi(-/+), using 468 million B (B) over bar pairs collected by the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) collider at SLAC. We measure gamma = (68 +/- 14 +/- 4 +/- 3)degrees (modulo 180 degrees), where the first error is statistical, the second is the experimental systematic uncertainty, and the third reflects the uncertainty in the description of the neutral D decay amplitudes. This result is inconsistent with gamma = 0 ( no direct CP violation) with a significance of 3.5 standard deviations.
eng
openAccess
Evidence for Direct CP Violation in the Measurement of the Cabbibo-Kobayashi-Maskawa Angle gamma with B--/+ -> D-(*K-)(()*()-/+) Decays
artículo
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URL
https://digital.csic.es/bitstream/10261/28502/1/Babar-evidence.pdf
File
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Babar-evidence.pdf
URL
https://digital.csic.es/bitstream/10261/28502/4/Babar-evidence.pdf.txt
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MD5
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Babar-evidence.pdf.txt