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Measurements of direct CP-violating asymmetries in charmless decays of bottom baryons

Aaltonen, T.
•
Amerio, S.
•
Amidei, D.
altro
Zucchelli, S
2014
  • journal article

Periodico
PHYSICAL REVIEW LETTERS
Abstract
We report final measurements of direct CP-violating asymmetries in charmless decays of neutral bottom hadrons to pairs of charged hadrons with the upgraded Collider Detector at the Fermilab Tevatron. Using the complete √s=1.96 TeV proton-antiproton collisions data set, corresponding to 9.3 fb−1 of integrated luminosity, we measure A(Λ0b→pπ−)=+0.06±0.07(stat)±0.03(syst) and A(Λ0b→pK−)=−0.10±0.08(stat)±0.04(syst), compatible with no asymmetry. In addition we measure the CP-violating asymmetries in B0s→K−π+ and B0→K+π− decays to be A(B0s→K−π+)=+0.22±0.07(stat)±0.02(syst) and A(B0→K+π−)=−0.083±0.013(stat)±0.004(syst), respectively, which are significantly different from zero and consistent with current world averages.
DOI
10.1103/PhysRevLett.113.242001
WOS
WOS:000346387700008
Archivio
http://hdl.handle.net/11390/1084934
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84918516519
http://harvest.aps.org/bagit/articles/10.1103/PhysRevLett.113.242001/apsxml
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Soggetti
  • Physics and Astronomy...

Scopus© citazioni
36
Data di acquisizione
Jun 2, 2022
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Web of Science© citazioni
30
Data di acquisizione
Mar 25, 2024
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