Search for the doubly charmed baryon   Ξ+cc

Robert Appleby; Silvia Borghi; Christopher Burr; Stefano De Capua; Deepanwita Dutta; Evelina Gersabeck; Marco Gersabeck; Lucia Grillo; Martha Hilton; George Lafferty; Andrew Mcnab; Christopher Parkes; Gediminas Sarpis; Mark Williams; The LHCb Collaboration

doi:10.1007/s11433-019-1471-8

Search for the doubly charmed baryon Ξ+cc

Robert Appleby, Silvia Borghi, Christopher Burr, Stefano De Capua, Deepanwita Dutta, Evelina Gersabeck, Marco Gersabeck, Lucia Grillo, Martha Hilton, George Lafferty, Andrew Mcnab, Christopher Parkes, Gediminas Sarpis, Mark Williams, The LHCb Collaboration

Research output: Contribution to journal › Article › peer-review

Abstract

A search for the doubly charmed baryon Ξ+ccΞcc+ is performed through its decay to the Λ+cK−π+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 Ξ+ccΞcc+ production cross-section times the branching fraction to that of Λ+cΛc+ and Ξ++ccΞcc++ baryons. The limits are determined as functions of the Ξ+ccΞcc+ 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.

Original language	English
Journal	Science China. Physics, Mechanics & Astronomy
Early online date	19 Nov 2019
DOIs	https://doi.org/10.1007/s11433-019-1471-8
Publication status	Published - Feb 2020

Keywords

charmed baryons
limits on production of particles
charmed quarks
experimental tests

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10.1007/s11433-019-1471-8Licence: CC BY

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title = "Search for the doubly charmed baryon Ξ+cc",

abstract = "A search for the doubly charmed baryon Ξ+ccΞcc+ is performed through its decay to the Λ+cK−π+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 Ξ+ccΞcc+ production cross-section times the branching fraction to that of Λ+cΛc+ and Ξ++ccΞcc++ baryons. The limits are determined as functions of the Ξ+ccΞcc+ 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, limits on production of particles, charmed quarks, experimental tests",

author = "Robert Appleby and Silvia Borghi and Christopher Burr and {De Capua}, Stefano and Deepanwita Dutta and Evelina Gersabeck and Marco Gersabeck and Lucia Grillo and Martha Hilton and George Lafferty and Andrew Mcnab and Christopher Parkes and Gediminas Sarpis and Mark Williams and {The LHCb Collaboration}",

year = "2020",

month = feb,

doi = "10.1007/s11433-019-1471-8",

language = "English",

journal = "Science China. Physics, Mechanics & Astronomy",

issn = "1869-1927",

publisher = "Zhongguo Shehui Kexue Zazhishe",

}

TY - JOUR

T1 - Search for the doubly charmed baryon Ξ+cc

AU - Appleby, Robert

AU - Borghi, Silvia

AU - Burr, Christopher

AU - De Capua, Stefano

AU - Dutta, Deepanwita

AU - Gersabeck, Evelina

AU - Gersabeck, Marco

AU - Grillo, Lucia

AU - Hilton, Martha

AU - Lafferty, George

AU - Mcnab, Andrew

AU - Parkes, Christopher

AU - Sarpis, Gediminas

AU - Williams, Mark

AU - The LHCb Collaboration,

PY - 2020/2

Y1 - 2020/2

N2 - A search for the doubly charmed baryon Ξ+ccΞcc+ is performed through its decay to the Λ+cK−π+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 Ξ+ccΞcc+ production cross-section times the branching fraction to that of Λ+cΛc+ and Ξ++ccΞcc++ baryons. The limits are determined as functions of the Ξ+ccΞcc+ 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.

AB - A search for the doubly charmed baryon Ξ+ccΞcc+ is performed through its decay to the Λ+cK−π+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 Ξ+ccΞcc+ production cross-section times the branching fraction to that of Λ+cΛc+ and Ξ++ccΞcc++ baryons. The limits are determined as functions of the Ξ+ccΞcc+ 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.

KW - charmed baryons

KW - limits on production of particles

KW - charmed quarks

KW - experimental tests

U2 - 10.1007/s11433-019-1471-8

DO - 10.1007/s11433-019-1471-8

M3 - Article

JO - Science China. Physics, Mechanics & Astronomy

JF - Science China. Physics, Mechanics & Astronomy

SN - 1869-1927

ER -

Search for the doubly charmed baryon Ξ+cc

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Keywords

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