Search for the rare decay Λ+ c → pμ + μ −

LHCb Collaboration; Robert Appleby; Igor Babuschkin; Roger Barlow; William Barter; Silvia Borghi; Christopher Burr; Lorenzo Capriotti; Stefano De Capua; Deepanwita Dutta; Evelina Gersabeck; Marco Gersabeck; Lucia Grillo; George Lafferty; Andrew Mcnab; Kevin Maguire; Christopher Parkes; Gediminas Sarpis; Mark Williams

doi:10.1103/PhysRevD.97.091101

Search for the rare decay Λ+ c → pμ + μ −

LHCb Collaboration, Robert Appleby, Igor Babuschkin, Roger Barlow, William Barter, Silvia Borghi, Christopher Burr, Lorenzo Capriotti, Stefano De Capua, Deepanwita Dutta, Evelina Gersabeck, Marco Gersabeck, Lucia Grillo, George Lafferty, Andrew Mcnab, Kevin Maguire, Christopher Parkes, Gediminas Sarpis, Mark Williams

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

Abstract

A search for the flavor-changing neutral-current decay Λ + c → p μ + μ − is reported using a data set corresponding to an integrated luminosity of 3.0 fb − 1 collected by the LHCb Collaboration. No significant signal is observed outside of the dimuon mass regions around the ϕ and ω resonances, and an upper limit is placed on the branching fraction of B ( Λ + c → p μ + μ − ) < 7.7 ( 9.6 ) × 10 − 8 at 90%(95%) confidence level. A significant signal is observed in the ω dimuon mass region for the first time.

Original language	English
Article number	091101
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	97
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.97.091101
Publication status	Published - 4 May 2018

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LHCb Collaboration, Appleby, R., Babuschkin, I., Barlow, R., Barter, W., Borghi, S., Burr, C., Capriotti, L., De Capua, S., Dutta, D., Gersabeck, E., Gersabeck, M., Grillo, L., Lafferty, G., Mcnab, A., Maguire, K., Parkes, C., Sarpis, G., & Williams, M. (2018). Search for the rare decay Λ+ c → pμ + μ −. Physical Review D - Particles, Fields, Gravitation and Cosmology, 97(9), Article 091101. https://doi.org/10.1103/PhysRevD.97.091101

@article{5c7372972ba44ce395fd4b6d7ec406a4,

title = "Search for the rare decay Λ+ c → pμ + μ −",

abstract = "A search for the flavor-changing neutral-current decay Λ + c → p μ + μ − is reported using a data set corresponding to an integrated luminosity of 3.0 fb − 1 collected by the LHCb Collaboration. No significant signal is observed outside of the dimuon mass regions around the ϕ and ω resonances, and an upper limit is placed on the branching fraction of B ( Λ + c → p μ + μ − ) < 7.7 ( 9.6 ) × 10 − 8 at 90%(95%) confidence level. A significant signal is observed in the ω dimuon mass region for the first time.",

author = "{LHCb Collaboration} and Robert Appleby and Igor Babuschkin and Roger Barlow and William Barter and Silvia Borghi and Christopher Burr and Lorenzo Capriotti and {De Capua}, Stefano and Deepanwita Dutta and Evelina Gersabeck and Marco Gersabeck and Lucia Grillo and George Lafferty and Andrew Mcnab and Kevin Maguire and Christopher Parkes and Gediminas Sarpis and Mark Williams",

year = "2018",

month = may,

day = "4",

doi = "10.1103/PhysRevD.97.091101",

language = "English",

volume = "97",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Institute of Physics",

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LHCb Collaboration, Appleby, R, Babuschkin, I, Barlow, R, Barter, W, Borghi, S, Burr, C, Capriotti, L, De Capua, S, Dutta, D, Gersabeck, E , Gersabeck, M, Grillo, L, Lafferty, G, Mcnab, A, Maguire, K, Parkes, C, Sarpis, G & Williams, M 2018, 'Search for the rare decay Λ+ c → pμ + μ −', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 97, no. 9, 091101. https://doi.org/10.1103/PhysRevD.97.091101

TY - JOUR

T1 - Search for the rare decay Λ+ c → pμ + μ −

AU - LHCb Collaboration

AU - Appleby, Robert

AU - Babuschkin, Igor

AU - Barlow, Roger

AU - Barter, William

AU - Borghi, Silvia

AU - Burr, Christopher

AU - Capriotti, Lorenzo

AU - De Capua, Stefano

AU - Dutta, Deepanwita

AU - Gersabeck, Evelina

AU - Gersabeck, Marco

AU - Grillo, Lucia

AU - Lafferty, George

AU - Mcnab, Andrew

AU - Maguire, Kevin

AU - Parkes, Christopher

AU - Sarpis, Gediminas

AU - Williams, Mark

PY - 2018/5/4

Y1 - 2018/5/4

N2 - A search for the flavor-changing neutral-current decay Λ + c → p μ + μ − is reported using a data set corresponding to an integrated luminosity of 3.0 fb − 1 collected by the LHCb Collaboration. No significant signal is observed outside of the dimuon mass regions around the ϕ and ω resonances, and an upper limit is placed on the branching fraction of B ( Λ + c → p μ + μ − ) < 7.7 ( 9.6 ) × 10 − 8 at 90%(95%) confidence level. A significant signal is observed in the ω dimuon mass region for the first time.

AB - A search for the flavor-changing neutral-current decay Λ + c → p μ + μ − is reported using a data set corresponding to an integrated luminosity of 3.0 fb − 1 collected by the LHCb Collaboration. No significant signal is observed outside of the dimuon mass regions around the ϕ and ω resonances, and an upper limit is placed on the branching fraction of B ( Λ + c → p μ + μ − ) < 7.7 ( 9.6 ) × 10 − 8 at 90%(95%) confidence level. A significant signal is observed in the ω dimuon mass region for the first time.

UR - http://www.scopus.com/inward/record.url?scp=85049142467&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.97.091101

DO - 10.1103/PhysRevD.97.091101

M3 - Article

SN - 1550-7998

VL - 97

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 9

M1 - 091101

ER -

Search for the rare decay Λ+ c → pμ + μ −

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