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Prospects for New Physics searches with ${{\Lambda } ^0_{\mathrm {b}}} \!\rightarrow {\Lambda } (1520) {{\ell ^+} {\ell ^-}} $ decays / Amhis, Yasmine (IJCLab, Orsay) ; Descotes-Genon, Sébastien (IJCLab, Orsay) ; Marin Benito, Carla (IJCLab, Orsay) ; Novoa-Brunet, Martín (IJCLab, Orsay) ; Schune, Marie-Hélène (IJCLab, Orsay)
We present the prospects of an angular analysis of the $\Lambda_b \to \Lambda(1520)\ell^+\ell^-$ decay. Using the expected yield in the current dataset collected at the LHCb experiment, as well as the foreseen ones after the LHCb upgrades, sensitivity studies are presented to determine the experimental precision on angular observables related to
arXiv:2005.09602.- 2021-06-02 - 15 p. - Published in : Eur. Phys. J. Plus 136 (2021) 614 Fulltext: PDF;

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A new $B$-flavour anomaly in $B_{d,s}\to K^{*0}\bar{K}^{*0}$: anatomy and interpretation / Algueró, Marcel (Barcelona, IFAE ; BIST, Barcelona ; Barcelona, Autonoma U.) ; Crivellin, Andreas (CERN ; Zurich U. ; PSI, Villigen) ; Descotes-Genon, Sébastien (IJCLab, Orsay) ; Matias, Joaquim (Barcelona, IFAE ; BIST, Barcelona ; Barcelona, Autonoma U.) ; Novoa-Brunet, Martín (IJCLab, Orsay)
In the context of the recently measured non-leptonic decays $B_{d}\to K^{*0}\bar{K}^{*0}$ and $B_{s}\to K^{*0}\bar{K}^{*0}$ we analyse the anatomy of the $L_{VV}$ observable that compares the longitudinal components of $B_s \to VV$ and $B_d \to VV$ decays. This observable is cleaner than the longitudinal polarisation fraction as it is afflicted only at subleading order in a $1/m_b$ expansion by the theoretical uncertainties arising in the transverse components entering the polarisation fraction. [...]
arXiv:2011.07867.- 2021-04-08 - 26 p. - Published in : JHEP 2104 (2021) 066 Article from SCOAP3: PDF; Fulltext: PDF;

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Proceedings of the Working group 3 “Rare B, D and K decays” for CKM 2018 (Heidelberg) / De Cian, Michel (LPHE, Lausanne) ; Descotes-Genon, Sébastien (Orsay, LPT) ; Massri, Karim (CERN)
Rare $B$, $D$ and $K$ decays provide interesting probes of the Standard Model (SM), with a potential sensitivity to New Physics (NP) higher than other, more common, decays. [...]
arXiv:1901.04541. - 2019. - 16 p.
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The CKM parameters in the SMEFT / Descotes-Genon, Sébastien (Orsay, LPT) ; Falkowski, Adam (Orsay, LPT) ; Fedele, Marco (ICC, Barcelona U.) ; González-Alonso, Martín (CERN) ; Virto, Javier (Munich, Tech. U. ; MIT, Cambridge, CTP)
The extraction of the Cabibbo-Kobayashi-Maskawa (CKM) matrix from flavour observables can be affected by physics beyond the Standard Model (SM). We provide a general roadmap to take this into account, which we apply to the case of the Standard Model Effective Field Theory (SMEFT). [...]
arXiv:1812.08163; LPT Orsay 18-92; CERN-TH-2018-276; TUM-HEP-1178/18; MIT-CTP/5081, NIOBE-2018-01.- 2019-05-27 - 37 p. - Published in : JHEP 1905 (2019) 172 Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;

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E=mc^2... et après ? (2/2) / DESCOTES-GENON, Sébastien (speaker) (CNRS)
2015 - 3901. Teacher Programmes; French Teachers Programme 2015 External links: Talk details; Event details In : French Teachers Programme 2015

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E=mc^2... et après ? (1/2) / DESCOTES-GENON, Sébastien (speaker) (CNRS)
2014 - 7547. Teacher Programmes; French Teachers Programme 2014 External links: Talk details; Event details In : French Teachers Programme 2014

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Optimizing the basis of B → K*l+l- observables in the full kinematic range / Descotes-Genon, Sébastien (Orsay, LPT) ; Matias, Joaquim (Barcelona, Autonoma U.) ; Virto, Javier (Siegen U.)
We discuss the impact of recent LHCb data on the B -> K* mu+mu- decay for New Physics searches. We use an optimised set of observables with a limited sensitivity to hadronic inputs (form factors), leading to a significant deviation from the Standard Model for the semileptonic operator O9. [...]
arXiv:1311.3876.- 2014 - 7 p. - Published in : PoS EPS-HEP2013 (2013) 361 Fulltext: EPS-HEP 2013_361 - PDF; arXiv:1311.3876 - PDF; External link: Proceedings of Science Server
In : EPS-HEP 2013 European Physical Society Conference on High Energy Physics, Stockholm, Sweden, 18 - 24 Jul 2013, pp.361

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Se også: lignende forfatternavn
41	DESCOTES-GENON, Sébastien
36	Descotes-Genon, S
9	Descotes-Genon, S.
41	Descotes-Genon, Sebastien

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