Projecten per jaar
Abstract
A study of excited Λ0
b baryons is reported, based on a data sample collected in 2016–2018 with the
CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding
to an integrated luminosity of up to 140 fb−1. The existence of four excited Λ0
b states: Λ0
b(5912)0,
Λ0
b(5920)0, Λ0
b(6146)0, and Λ0
b(6152)0 in the Λ0
bπ+π− mass spectrum is confirmed, and their masses
are measured. The Λ0
bπ+π− mass distribution exhibits a broad excess of events in the region of
6040–6100MeV, whose origin cannot be discerned with the present data.
b baryons is reported, based on a data sample collected in 2016–2018 with the
CMS detector at the LHC in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding
to an integrated luminosity of up to 140 fb−1. The existence of four excited Λ0
b states: Λ0
b(5912)0,
Λ0
b(5920)0, Λ0
b(6146)0, and Λ0
b(6152)0 in the Λ0
bπ+π− mass spectrum is confirmed, and their masses
are measured. The Λ0
bπ+π− mass distribution exhibits a broad excess of events in the region of
6040–6100MeV, whose origin cannot be discerned with the present data.
Datum van beschikbaarheid | 31 jan 2020 |
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Uitgever | HEPData |
Format
- Format
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iBOF/23/074: Ontsluiten van de charm-Higgs koppeling bij de LHC
D'Hondt, J., Lowette, S., Van Mechelen, P. & Dobur, D.
1/01/23 → 31/12/26
Project: Fundamenteel
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Onderzoekersoutput
- 1 Article
-
Study of excited Λ b 0 states decaying to Λ b 0π +π − in proton-proton collisions at s=13TeV
Collaboration, CMS., Blekman, F., Bols, E. S., Chhibra, S. S., D'Hondt, J., De Clercq, J., Lontkovskyi, D., Lowette, S., Marchesini, I., Moortgat, S., Python, Q., Tavernier, S., Van Doninck, W., Van Mulders, P., Burns, D. & Burns, D. J. P., 10 apr 2020, In: Phys. Lett. B. 803, 22 blz., 135345.Onderzoeksoutput: Article › peer review
Open Access41 Citaten (Scopus)