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Measurement of the masses and widths of the bottom baryons Σb± and Σb*±

Abstract:

Using data from pp̄ collisions at √s=1.96TeV recorded by the CDF II detector at the Fermilab Tevatron, we present improved measurements of the masses and first measurements of natural widths of the four bottom baryon resonance states Σb+, Σb*+ and Σb-, Σb*-. These states are fully reconstructed in their decay modes to Λb0π ± where Λb0→Λc+π - with Λc+→pK -π +. The analysis is based on a data sample corresponding to an integrated luminosity of 6.0fb -1 collected by an online event selection bas...

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Publisher copy:
10.1103/PhysRevD.85.092011

Authors


Aaltonen, T More by this author
Anastassov, A More by this author
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Journal:
Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume:
85
Issue:
9
Publication date:
2012-05-16
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
URN:
uuid:2c888ae7-6f50-49f0-8fd5-0560bd1d7c8e
Source identifiers:
340115
Local pid:
pubs:340115
Language:
English

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