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Precise Measurements of Direct CP Violation, CPT Symmetry, and Other Parameters in the Neutral Kaon System

Abstract:

We present precise tests of CP and CPT symmetry based on the full dataset of K to pipi decays collected by the KTeV experiment at Fermi National Accelerator Laboratory during 1996, 1997, and 1999. This dataset contains 16 million K to 2pi0 and 69 million K to pi+pi- decays. We measure the direct CP violation parameter Re(epsilon'/epsilon) = (19.2 pm 2.1)x10-4. We find the KL-KS mass difference Deltam = (5270 pm 12)x10^6 hbar/s and the KS lifetime tauS = (89.62 pm 0.05)x10-12 s. We also measur...

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Publisher copy:
10.1103/PhysRevD.83.092001

Authors


Collaboration, K More by this author
Abouzaid, E More by this author
Arenton, M More by this author
Barker, AR More by this author
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Journal:
Phys.Rev.D
Volume:
83
Issue:
9
Pages:
092001
Publication date:
2010-10-31
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
URN:
uuid:8529689f-cbdb-4dfb-9f80-3f1d3cb1f848
Source identifiers:
410723
Local pid:
pubs:410723
Keywords:

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