| Autor: |
CMS Collaboration, Sirunyan, Albert M., Tumasyan, Armen R., Adam, Wolfgang, Ambrogi, Federico, Bergauer, Thomas, Dragicevic, Marko, Erö, János, Escalante Del Valle, Alberto, Flechl, Martin, Frühwirth, Rudolf K., Jeitler, Manfred A., Krammer, N., Krätschmer, Ilse, Liko, Dietrich, Madlener, Thomas, Mikulec, Ivan, Rad, Navid K., Schieck, Jochen R., Schöfbeck, Robert, Spanring, Markus |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 803 |
| Popis: |
A study of excited 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. The existence of four excited states: , , , and in the mass spectrum is confirmed, and their masses are measured. The mass distribution exhibits a broad excess of events in the region of 6040–6100 MeV, whose origin cannot be discerned with the present data. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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