download0 view87
twitter facebook

공공누리This item is licensed Korea Open Government License

Title
Evidence for a bottom baryon resonance Lambda_b* in CDF data
Author(s)
T. Aaltonen조기현
Publication Year
2013-08-08
Abstract
Using data from proton-antiproton collisions at Ecms=1.96 TeV recorded by the CDF II detector at the Fermilab Tevatron, evidence for the excited resonance state Lambda_b* is presented in its Lambda_b0 pi+ pi- decay, followed by the Lambda_b0 --Lambda_c+ (--proton K- pi+) pi- decays. The analysis is based on a data sample corresponding to an integrated luminosity of 9.6/fb collected by an online event selection based on charged-particle tracks displaced from the proton-antiproton interaction point. The significance of the observed signal is 3.5 Gaussian sigmas. The mass of the observed state is found to be 5919.22 +- 0.76 MeV in agreement with similar findings in proton-proton collision experiments.
Keyword
High Energy Physics; Particle Physics; belle
Journal Title
Physical review. D, Particles and fields
ISSN
1550-7998
Files in This Item:
There are no files associated with this item.
Appears in Collections:
7. KISTI 연구성과 > 학술지 발표논문
URI
https://repository.kisti.re.kr/handle/10580/14139
Export
RIS (EndNote)
XLS (Excel)
XML

Browse