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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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Compilation of low-energy constraints on 4-fermion operators in the SMEFT
/ Falkowski, Adam (Orsay, LPT) ; González-Alonso, Martín (Lyon, IPN ; CERN) ; Mimouni, Kin (ITPP, Lausanne)
We compile information from low-energy observables sensitive to flavor-conserving 4-fermion operators with two or four leptons. Our analysis includes data from e+e- colliders, neutrino scattering on electron or nucleon targets, atomic parity violation, parity-violating electron scattering, and the decay of pions, neutrons, nuclei and tau leptons. [...]
arXiv:1706.03783.-
2017-08-28 - 40 p.
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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3.
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Evaluation of high-precision atomic masses of A ∼ 50-80 and rare-earth nuclides measured with ISOLTRAP
/ Huang, W J (CSNSM, Orsay ; Heidelberg, Max Planck Inst.) ; Atanasov, D (CERN) ; Audi, G (CSNSM, Orsay) ; Blaum, K (Heidelberg, Max Planck Inst.) ; Cakirli, R B (Istanbul U.) ; Herlert, A (FAIR, Darmstadt) ; Kowalska, M (CERN) ; Kreim, S (Heidelberg, Max Planck Inst. ; CERN) ; Litvinov, Yu A (Darmstadt, GSI) ; Lunney, D (CSNSM, Orsay) et al.
High-precision mass measurements of stable and beta-decaying nuclides $^{52-57}$Cr, $^{55}$Mn, $^{56,59}$Fe, $^{59}$Co, $^{75, 77-79}$Ga, and the lanthanide nuclides $^{140}$Ce, $^{140}$Nd, $^{160}$Yb, $^{168}$Lu, $^{178}$Yb have been performed with the Penning-trap mass spectrometer ISOLTRAP at ISOLDE/CERN. The new data are entered into the Atomic Mass Evaluation and improve the accuracy of masses along the valley of stability, strengthening the so-called backbone. [...]
2019 - 9 p.
- Published in : Eur. Phys. J. A 55 (2019) 96
Fulltext (Open Access version from publisher): PDF;
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4.
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$\texttt{HEPfit}$: a Code for the Combination of Indirect and Direct Constraints on High Energy Physics Models
/ De Blas, J. (Padua U. ; INFN, Padua) ; Chowdhury, D. (Ecole Polytechnique, CPHT ; Orsay, LPT) ; Ciuchini, M. (INFN, Rome) ; Coutinho, A.M. (PSI, Villigen) ; Eberhardt, O. (Valencia U., IFIC) ; Fedele, M. (Barcelona U.) ; Franco, E. (INFN, Rome) ; Grilli Di Cortona, G. (Warsaw U.) ; Miralles, V. (Valencia U.) ; Mishima, S. (KEK, Tsukuba) et al.
$\texttt{HEPfit}$ is a flexible open-source tool which, given the Standard Model or any of its extensions, allows to $\textit{i)}$ fit the model parameters to a given set of experimental observables; $\textit{ii)}$ obtain predictions for observables. $\texttt{HEPfit}$ can be used either in Monte Carlo mode, to perform a Bayesian Markov Chain Monte Carlo analysis of a given model, or as a library, to obtain predictions of observables for a given point in the parameter space of the model, allowing $\texttt{HEPfit}$ to be used in any statistical framework. [...]
arXiv:1910.14012; CERN-TH-2019-178; CPHT-RR060.102019; DESY-19-184; DESY 19-184; FTUV/19-1031; KEK-TH-2163; LPT-Orsay-19-36; PSI-PR-19-22; UCI-TR-2019-26; IFIC/19-44.-
2020-05-21 - 31 p.
- Published in : Eur. Phys. J. C 80 (2020) 456
Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from Publisher: PDF;
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5.
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Feasibility of $\tau$ -lepton electromagnetic dipole moments measurement using bent crystal at the LHC
/ Fomin, A.S. (Kharkov, KIPT ; CERN) ; Korchin, A. Yu (Kharkov, KIPT ; Kharkov Natl. U.) ; Stocchi, A. (Orsay, LAL) ; Barsuk, S. (Orsay, LAL) ; Robbe, P. (Orsay, LAL)
In this paper we discuss the possibility of measuring the anomalous magnetic and electric dipole moments of the $\tau$ lepton. The method consists in studying the spin precession induced by the strong effective magnetic field inside channels of a bent crystal with a dedicated setup at the CERN Large Hadron Collider..
arXiv:1810.06699.-
2019-03-26 - 23 p.
- Published in : JHEP 1903 (2019) 156
Article from SCOAP3: PDF; Fulltext: PDF;
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Direct decay-energy measurement as a route to the neutrino mass
/ Karthein, Jonas (CERN ; Heidelberg, Max Planck Inst.) ; Atanasov, Dinko (Dresden, Tech. U.) ; Blaum, Klaus (Heidelberg, Max Planck Inst.) ; Eliseev, Sergey (Heidelberg, Max Planck Inst.) ; Filianin, Pavel (Heidelberg, Max Planck Inst.) ; Lunney, David (CSNSM, Orsay) ; Manea, Vladimir (CERN) ; Mougeot, Maxime (CSNSM, Orsay) ; Neidherr, Dennis (Darmstadt, GSI) ; Novikov, Yuri (St. Petersburg State U. ; St. Petersburg, INP) et al.
A high-precision measurement of the $^{131}$Cs$ \rightarrow ^{131}$Xe ground-to-ground-state electron-capture $Q_{\textrm{EC}}$-value was performed using the ISOLTRAP mass spectrometer at ISOLDE/CERN. The novel PI-ICR technique allowed to reach a relative mass precision $\delta m/m$ of $1.4\cdot10^{-9}$. [...]
arXiv:1905.05510.-
2019-06-12 - 10 p.
- Published in : Hyperfine Interact. 240 (2019) 61
Fulltext: PDF;
In : 9th Symposium on Large TPCs for Low-Energy Rare Event Detection, Paris, France, 12 - 14 Dec 2018, pp.61
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9.
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The prospect of charm quark magnetic moment determination
/ Fomin, A.S. (Orsay, LAL ; Kharkov, KIPT ; CERN) ; Barsuk, S. (Orsay, LAL) ; Korchin, A.Yu. (Kharkov, KIPT ; Kharkov Natl. U.) ; Kovalchuk, V.A. (Kharkov, KIPT ; Kharkov Natl. U.) ; Kou, E. (Orsay, LAL) ; Liul, M. (Orsay, LAL ; Kharkov Natl. U.) ; Natochii, A. (Orsay, LAL ; Taras Shevchenko U.) ; Niel, E. (Orsay, LAL) ; Robbe, P. (Orsay, LAL) ; Stocchi, A. (Orsay, LAL)
In this paper, we discuss the theoretical framework and the experimental measurements of the magnetic moment of the charm baryons. The $\Lambda_c^+$ magnetic moment is particularly interesting since it is equal to the magnetic moment of the charm quark. [...]
arXiv:1909.04654; CERN-PBC-Notes-2021-021.-
2020-05-05 - 20 p.
- Published in : Eur. Phys. J. C 80 (2020) 358
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Fulltext from Publisher: PDF;
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