Observation of Excited Λb0 Baryons
- R. Aaij,
- C. Abellan Beteta,
- A. Adametz,
- B. Adeva,
- M. Adinolfi,
- C. Adrover
- University of Basilicata,
- Centro Brasileiro de Pesquisas Físicas,
- Ramon Llull University,
- University of Barcelona,
- Heidelberg University,
- University of Santiago de Compostela
Research Output:
Contribution to journal
Article
Peer-reviewPublication metrics
Metrics
SciVal
FWCI
3.25
SciVal
Author count
617
SciVal
Citations
127
SciVal
Paper percentile
93
SciVal
Top percentile
10
Abstract
Using pp collision data corresponding to 1.0fb -1 integrated luminosity collected by the LHCb detector, two narrow states are observed in the Λb0π +π - spectrum with masses 5911.97±0.12(stat)±0.02(syst)±0.66(Λb0mass)MeV/c2 and 5919.77±0.08(stat)±0.02(syst)±0.66(Λb0mass)MeV/ c2. The significances of the observations are 5.2 and 10.2 standard deviations, respectively. These states are interpreted as the orbitally excited Λb0 baryons, Λb*0(5912) and Λb*0(5920).
Publication Information
Output type
Research Output:
Contribution to journal
Article
Peer-reviewOriginal language
EnglishArticle number
172003Journal (Volume, Issue Number)
Physical Review Letters (Volume 109, Issue 17)Publication milestones
- Published - 26/10/2012
Publication status
Published - 26/10/2012
ISSN
0031-9007Publication IDs
- Scopus: 84868013995
- WOS: 000310261200005
Funding Details
FundersFunding numbers
NSF
-STFC
ST/H001069/2, ST/H001085/2, ST/K001256/1, ST/H001093/2, ST/M001431/1, ST/M001474/1, ST/H001093/1, ST/I002839/1, ST/K001310/1, ST/K001604/1, ST/G005974/1, ST/H00081X/2, ST/H001026/2, ST/L001144/1, ST/H00081X/1, ST/K004646/1
STFC
-SNF
127479, 139663, 141096
SNF
-