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Kaon rare decays: theory overview
/ Neshatpour, Siavash (IP2I, Lyon) ; D'Ambrosio, Giancarlo (INFN, Naples) ; Iyer, Abhishek (Indian Inst. Tech., New Delhi) ; Mahmoudi, Farvah (IP2I, Lyon ; CERN ; IUF, Paris)
/ATLAS Collaboration
In this proceeding, we review the current theoretical landscape of rare Kaon decays, focusing specifically on flavor-changing neutral current processes. These decays provide valuable indirect avenues for exploring new physics. [...]
CERN-TH-2024-034.-
2024 - 6 p.
- Published in : PoS WIFAI 2023 (2024) 026
Fulltext: PDF;
In : Workshop Italiano sulla Fisica ad Alta Intensita (WIFAI 2023), Rome, Italy, 8 - 10 Nov 2023, pp.026
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Exploring scalar contributions with $K^+ \to \pi^+ \ell^+ \ell^-$
/ D'Ambrosio, G. (INFN, Naples) ; Iyer, A.M. (Indian Inst. Tech., New Delhi) ; Mahmoudi, F. (IP2I, Lyon ; CERN ; IUF, Paris) ; Neshatpour, S. (IP2I, Lyon)
The rare kaon decay $K^+ \to \pi^+\ell^+\ell^-$ offers insights into Standard Model (SM) physics and beyond. Driven by vector form factor in the SM, it can also probe non-standard contributions. [...]
arXiv:2404.03643; CERN-TH-2024-044.-
2024-06-26 - 4 p.
- Published in : Phys. Lett. B 855 (2024) 138824
Fulltext: Publication - PDF; 2404.03643 - PDF;
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Model independent analysis for B anomalies
/ Mahmoudi, Farvah (IP2I, Lyon ; CERN) ; Hurth, Tobias (U. Mainz, PRISMA) ; Martínez Santos, Diego (Santiago de Compostela U.) ; Neshatpour, Siavash (INFN, Naples)
We discuss the implications of b → sℓ+ℓ− measurements and their deviations with respect to the Standard Model predictions in a model-independent framework. We highlight in particular the impact of the recent updated measurements including the updated Bs → ϕµ+µ− branching ratios and angular observables, the recent CMS measurement of the branching ratio of Bs → µ+µ−, and the LHCb measured lepton flavour universality violating ratios and RK∗+. [...]
2023 - 8 p.
- Published in : EPJ Web Conf. 289 (2023) 01002
Fulltext: PDF;
In : Workshop on "Flavour changing and conserving processes" 2022 (FCCP 2022), Anacapri, Italy, 22 - 24 Sep 2022, pp.01002
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Workshop summary: Kaons@CERN 2023
/ Anzivino, G. (INFN, Perugia ; Perugia U.) ; Cuendis, Sergio Arguedas (Costa Rica U.) ; Bernard, V. (IJCLab, Orsay) ; Bijnens, J. (Lund U.) ; Bloch-Devaux, B. (Turin U.) ; Bordone, M. (CERN) ; Brizioli, F. (INFN, Perugia ; CERN) ; Brod, J. (Cincinnati U.) ; Camalich, J.M. (IAC, La Laguna ; Laguna U., Tenerife) ; Ceccucci, A. (CERN) et al.
Kaon physics is at a turning point -- while the rare-kaon experiments NA62 and KOTO are in full swing, the end of their lifetime is approaching and the future experimental landscape needs to be defined. With HIKE, KOTO-II and LHCb-Phase-II on the table and under scrutiny, it is a very good moment in time to take stock and contemplate about the opportunities these experiments and theoretical developments provide for particle physics in the coming decade and beyond. [...]
arXiv:2311.02923; CERN-TH-2023-206.-
2024-04-09 - 55 p.
- Published in : Eur. Phys. J. C
Fulltext: 2311.02923 - PDF; document - PDF;
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Post-LS3 Experimental Options in ECN3
/ Ahdida, C. (CERN) ; Arduini, G. (CERN ; Arizona State U.) ; Balazs, K. (CERN) ; Bartosik, H. (CERN) ; Bernhard, J. (CERN) ; Boyarsky, A. (Leiden U. ; IP2I, Lyon) ; Brod, J. (Cincinnati U.) ; Brugger, M. (CERN) ; Calviani, M. (CERN) ; Ceccucci, A. (CERN) et al.
The Experimental Cavern North 3 (ECN3) is an underground experimental cavern on the CERN Prévessin site. [...]
arXiv:2310.17726.
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113.
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$B$ anomalies in the post $R_{K^{(*)}}$ era
/ Hurth, T. (Mainz U., Inst. Phys. ; U. Mainz, PRISMA) ; Mahmoudi, F. (IP2I, Lyon ; CERN ; IUF, Paris) ; Neshatpour, S. (IP2I, Lyon ; INFN, Naples)
We discuss the status of $b \to s \ell^+\ell^-$ decays in the post-$R_{K^{(*)}}$ era. The recent LHCb update of $R_K$ and $R_{K^*}$ measurements which are now compatible with the Standard Model, constrain new physics contributions to be lepton flavor universal, allowing only small deviations from this limit. [...]
arXiv:2310.05585; CERN-TH-2023-182; MITP-23-54.-
2023-12-01 - 9 p.
- Published in : Phys. Rev. D 108 (2023) 115037
Fulltext: 2310.05585 - PDF; Publication - PDF;
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Post-LS3 Experimental Options in ECN3
/ Ahdida, Claudia (CERN) ; Arduini, Gianluigi (CERN) ; Balazs, Kincso (CERN) ; Bartosik, Hannes (CERN) ; Bernhard, Johannes (CERN) ; Boyarsky, Alexey (Leiden University (NL)) ; Brod, Joachim (University of Cincinnati) ; Brugger, Markus (CERN) ; Calviani, Marco (CERN) ; Ceccucci, Augusto (CERN) et al.
The Experimental Cavern North 3 (ECN3) is an underground experimental cavern on the CERN Prévessin site. ECN3 currently hosts the NA62 experiment, with a physics programme devoted to rare kaon decays and searches of hidden particles approved until Long Shutdown 3 (LS3). [...]
CERN-PBC-REPORT-2023-003.-
Geneva : CERN, 2023 - 80.
Fulltext: PDF;
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