Searches for 25 rare and forbidden decays of D+ and D+ s mesons

LHCb collaboration; S. Playfer

doi:10.1007/JHEP06(2021)044

Searches for 25 rare and forbidden decays of D+ and D+ s mesons

LHCb collaboration, S. Playfer

School of Physics and Astronomy

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

Abstract / Description of output

A search is performed for rare and forbidden charm decays of the form D+(s) → h±`+`(′)∓, where h± is a pion or kaon and `(′)± is an electron or muon. The measurements are performed using proton-proton collision data, corresponding to an integrated luminosity of 1.6 fb−1, collected by the LHCb experiment in 2016. No evidence is observed for the 25 decay modes that are investigated and 90 % confidence level limits on the branching fractions are set between 1.4 × 10−8 and 6.4 × 10−6. In most cases, these results represent an improvement on existing limits by one to two orders of magnitude.

Original language	English
Article number	44
Pages (from-to)	1-23
Number of pages	23
Journal	Journal of High Energy Physics
Volume	2021
Issue number	6
DOIs	https://doi.org/10.1007/JHEP06(2021)044
Publication status	Published - 7 Jun 2021

Keywords / Materials (for Non-textual outputs)

Charm physics
Flavour physics
Flavour Changing Neutral Current
Hadron-Hadron scattering (experiments)
Rare decay

Access to Document

10.1007/JHEP06(2021)044Licence: Creative Commons: Attribution (CC-BY)

http://arxiv.org/abs/2011.00217

2 Finished
4 Active

Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C.
1/04/23 → 30/09/25
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C.
1/10/22 → 30/09/25
Project: Research
Beautiful Flavours: Discovering New Physics with B-hadrons and Tau-leptons
Barter, W.
1/07/22 → 30/06/26
Project: Research

Cite this

@article{efe0704a19e645c7bb2873aa6d615235,

title = "Searches for 25 rare and forbidden decays of D+ and D+ s mesons",

abstract = "A search is performed for rare and forbidden charm decays of the form D+(s) → h±`+`(′)∓, where h± is a pion or kaon and `(′)± is an electron or muon. The measurements are performed using proton-proton collision data, corresponding to an integrated luminosity of 1.6 fb−1, collected by the LHCb experiment in 2016. No evidence is observed for the 25 decay modes that are investigated and 90 % confidence level limits on the branching fractions are set between 1.4 × 10−8 and 6.4 × 10−6. In most cases, these results represent an improvement on existing limits by one to two orders of magnitude.",

keywords = "Charm physics, Flavour physics, Flavour Changing Neutral Current, Hadron-Hadron scattering (experiments), Rare decay",

author = "{LHCb collaboration} and William Barter and P.E.L. Clarke and S. Gambetta and F. Muheim and M. Needham and Mark Williams and Federico Betti and Robert Currie and S. Eisenhardt and Lavra, {Lais Soares} and Gediminas Sarpis and S. Playfer",

year = "2021",

month = jun,

day = "7",

doi = "10.1007/JHEP06(2021)044",

language = "English",

volume = "2021",

pages = "1--23",

journal = " Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer",

number = "6",

}

TY - JOUR

T1 - Searches for 25 rare and forbidden decays of D+ and D+ s mesons

AU - LHCb collaboration

AU - Barter, William

AU - Clarke, P.E.L.

AU - Gambetta, S.

AU - Muheim, F.

AU - Needham, M.

AU - Williams, Mark

AU - Betti, Federico

AU - Currie, Robert

AU - Eisenhardt, S.

AU - Lavra, Lais Soares

AU - Sarpis, Gediminas

AU - Playfer, S.

PY - 2021/6/7

Y1 - 2021/6/7

N2 - A search is performed for rare and forbidden charm decays of the form D+(s) → h±`+`(′)∓, where h± is a pion or kaon and `(′)± is an electron or muon. The measurements are performed using proton-proton collision data, corresponding to an integrated luminosity of 1.6 fb−1, collected by the LHCb experiment in 2016. No evidence is observed for the 25 decay modes that are investigated and 90 % confidence level limits on the branching fractions are set between 1.4 × 10−8 and 6.4 × 10−6. In most cases, these results represent an improvement on existing limits by one to two orders of magnitude.

AB - A search is performed for rare and forbidden charm decays of the form D+(s) → h±`+`(′)∓, where h± is a pion or kaon and `(′)± is an electron or muon. The measurements are performed using proton-proton collision data, corresponding to an integrated luminosity of 1.6 fb−1, collected by the LHCb experiment in 2016. No evidence is observed for the 25 decay modes that are investigated and 90 % confidence level limits on the branching fractions are set between 1.4 × 10−8 and 6.4 × 10−6. In most cases, these results represent an improvement on existing limits by one to two orders of magnitude.

KW - Charm physics

KW - Flavour physics

KW - Flavour Changing Neutral Current

KW - Hadron-Hadron scattering (experiments)

KW - Rare decay

U2 - 10.1007/JHEP06(2021)044

DO - 10.1007/JHEP06(2021)044

M3 - Article

SN - 1029-8479

VL - 2021

SP - 1

EP - 23

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 6

M1 - 44

ER -

Searches for 25 rare and forbidden decays of D+ and D+ s mesons

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

Access to Document

Fingerprint

Projects

Experimental Particle Physics at the University of Edinburgh

Experimental Particle Physics at the University of Edinburgh

Beautiful Flavours: Discovering New Physics with B-hadrons and Tau-leptons

Cite this