期刊
PHYSICAL REVIEW LETTERS
卷 121, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.121.052002
关键词
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资金
- CERN
- CAPES (Brazil)
- CNPq (Brazil)
- FAPERJ (Brazil)
- FINEP (Brazil)
- MOST (China)
- NSFC (China)
- CNRS/1N2P3 (France)
- BMBF (Germany)
- DEG (Germany)
- MPG (Germany)
- INFN (Italy)
- NVVO (Netherlands)
- MNiSW (Poland)
- NCN (Poland)
- MEN/IFA (Romania)
- MinES (Russia)
- FASO (Russia)
- MinECo (Spain)
- SNSF (Switzerland)
- SER (Switzerland)
- NASU (Ukraine)
- STFC (United Kingdom)
- NSF (USA)
- AvH Foundation (Germany)
- EPLANET
- Marie Sklodowska-Curie Actions
- ERC (European Union)
- ANR
- Labex P2I0 and OCEVU
- Region Auvergne-Rh6ne-Alpes (France)
- Key Research Program of Frontier Sciences of CAS
- CAS PIFI
- Thousand Talents Program (China)
- RFBR
- RSF
- Yandex LLC (Russia)
- OVA
- XuntaGal
- GENCAT (Spain)
- Herchel Smith Fund
- Royal Society
- English -Speaking Union
- Leverhulme Trust (United Kingdom)
- STFC [1796908, 2021483, ST/N000455/1, ST/K003410/1, ST/J004332/1, ST/N000447/1, LHCb, ST/L003163/1, LHCb Upgrades, ST/N000242/1, ST/N000234/1, ST/N000463/1] Funding Source: UKRI
The first measurement of the lifetime of the doubly charmed baryon Xi(++)(cc) is presented, with the signal reconstructed in the final state Lambda K-+(c)-pi(+)pi(+). The data sample used corresponds to an integrated luminosity of 1.7 fb(-1), collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 13 TeV. The Xi(++)(cc) lifetime is measured to be 0.256(-0.022)(+0.024) (stat) +/- 0.014(syst) ps.
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