@article{5db4c2b01e774153b5bff2bf25682a35,
title = "Search for the doubly charmed baryon Ξcc+",
abstract = "A search for the doubly charmed baryon Ξcc+ is performed through its decay to the Λc+K−π+ final state, using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV. The data correspond to a total integrated luminosity of 9 fb−1. No significant signal is observed in the mass range from 3.4 to 3.8 GeV/c2. Upper limits are set at 95% credibility level on the ratio of the Ξcc+ production cross-section times the branching fraction to that of Λc+ and Ξcc++ baryons. The limits are determined as functions of the Ξcc+ mass for different lifetime hypotheses, in the rapidity range from 2.0 to 4.5 and the transverse momentum range from 4 to 15 GeV/c.",
keywords = "charmed baryons, charmed quarks, experimental tests, limits on production of particles",
author = "{LHCb Collaboration} and R. Aaij and {Abell{\'a}n Beteta}, C. and T. Ackernley and B. Adeva and M. Adinolfi and H. Afsharnia and Aidala, {C. A.} and S. Aiola and Z. Ajaltouni and S. Akar and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and {Alfonso Albero}, A. and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and F. Archilli and {Arnau Romeu}, J. and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and Back, {J. J.} and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, {R. J.} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and G. Bassi and V. Batozskaya and B. Batsukh and A. Battig and A. Petrov and S. Strokov and A. Vagner",
note = "Funding Information: charmed baryons limits on production of particles charmed quarks experimental tests publisher-imprint-name Science China Press, co-published with Springer volume-issue-count 12 issue-article-count 17 issue-toc-levels 0 issue-pricelist-year 2020 issue-copyright-holder Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature issue-copyright-year 2020 article-contains-esm No article-numbering-style Unnumbered article-registration-date-year 2019 article-registration-date-month 11 article-registration-date-day 20 article-toc-levels 0 toc-levels 0 volume-type Regular journal-product ArchiveJournal numbering-style Unnumbered article-grants-type OpenChoice metadata-grant OpenAccess abstract-grant OpenAccess bodypdf-grant OpenAccess bodyhtml-grant OpenAccess bibliography-grant OpenAccess esm-grant OpenAccess online-first false pdf-file-reference BodyRef/PDF/11433_2019_Article_1471.pdf target-type OnlinePDF issue-type Regular article-type OriginalPaper journal-subject-primary Physics journal-subject-secondary Physics, general journal-subject-secondary Classical and Continuum Physics journal-subject-secondary Astronomy, Observations and Techniques journal-subject-collection Physics and Astronomy open-access true We thank Profs. Chao-Hsi Chang, Cai-Dian L{\"u}, Wei Wang, Xing-Gang Wu, and Fu-Sheng Yu for frequent and interesting discussions on the production and decays of double-heavy-flavor baryons. We express our gratitude to our colleagues in the CERN accelerator departments for the excellent performance of the LHC. We thank the technical and administrative staff at the LHCb institutes. We acknowledge support from CERN and from the national agencies: CAPES, CNPq, FAPERJ and FINEP (Brazil); MOST and NSFC (China); CNRS/IN2P3 (France); BMBF, DFG and MPG (Germany); INFN (Italy); NWO (Netherlands); MNiSW and NCN (Poland); MEN/IFA (Romania); MinES and FASO (Russia); MinECo (Spain); SNSF and SER (Switzerland); NASU (Ukraine); STFC (United Kingdom); NSF (USA). We acknowledge the computing resources that are provided by CERN, IN2P3 (France), KIT and DESY (Germany), INFN (Italy), SURF (Netherlands), PIC (Spain), GridPP (United Kingdom), RRCKI and Yandex LLC (Russia), CSCS (Switzerland), IFIN-HH (Romania), CBPF (Brazil), PL-GRID (Poland) and OSC (USA). We are indebted to the communities behind the multiple open-source software packages on which we depend. Individual groups or members have received support from AvH Foundation (Germany), EPLANET, Marie Sk{\l}odowska-Curie Actions and ERC (European Union), ANR, Labex P2IO and OCEVU, and R{\'e}gion Auvergne-Rh{\^o}ne-Alpes (France), Key Research Program of Frontier Sciences of CAS, CAS PIFI, and the Thousand Talents Program (China), RFBR, RSF and Yandex LLC (Russia), GVA, XuntaGal and GENCAT (Spain), Herchel Smith Fund, the Royal Society, the English-Speaking Union and the Leverhulme Trust (United Kingdom). ",
year = "2020",
month = feb,
day = "1",
doi = "10.1007/s11433-019-1471-8",
language = "English",
volume = "63",
journal = "Science China: Physics, Mechanics and Astronomy",
issn = "1674-7348",
publisher = "Science in China Press",
number = "2",
}