Searches for 25 rare and forbidden decays of D+ and D+s mesons
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| Title: | Searches for 25 rare and forbidden decays of D+ and D+s mesons |
| Author: | LHCb Collaboration Adeva Andany, Bernardo Alves Junior, Antonio Augusto Baladrón Rodríguez, Pablo Boente García, Óscar Brea Rodríguez, Alexandre Casais Vidal, Adrián Chobanova, Veronika Cid Vidal, Xabier Dalseno, Jeremy Dieste Maroñas, Lorena Fernández Prieto, Antonio Gallas Torreira, Abraham Antonio García Plana, Beatriz Gioventù, Alessandra Lomba Castro, Julián Martínez Santos, Diego Parkinson, Chris J. Plo Casasus, Máximo Prouve, Claire Ramos Pernas, Miguel Romero Lamas, Marcos Romero Vidal, Antonio Saborido Silva, Juan José Santamarina Ríos, Cibrán Vázquez Regueiro, Pablo |
| Affiliation: | Universidade de Santiago de Compostela. Departamento de Física de Partículas Universidade de Santiago de Compostela. Instituto Galego de Física de Altas Enerxías (IGFAE) |
| Subject: | Charm physics | Flavour physics | Flavour Changing Neutral Currents | Hadron-Hadron scattering (experiments) | Rare decay | |
| Date of Issue: | 2021 |
| Publisher: | Springer |
| Citation: | J. High Energ. Phys. 2021, 44. https://doi.org/10.1007/JHEP06(2021)044 |
| Abstract: | A search is performed for rare and forbidden charm decays of the form D+(s)→h±ℓ+ℓ(′)∓, where h± is a pion or kaon and ℓ(′)± 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 |
| Publisher version: | https://doi.org/10.1007/JHEP06(2021)044 |
| URI: | http://hdl.handle.net/10347/26752 |
| DOI: | 10.1007/JHEP06(2021)044 |
| E-ISSN: | 1029-8479 |
| Rights: | Copyright CERN, for the benefit of the LHCb Collaboration, 2021. Open Access . This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited Atribución 4.0 Internacional |
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Except where otherwise noted, this item's license is described as Copyright CERN, for the benefit of the LHCb Collaboration, 2021. Open Access . This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited