Zobrazeno 1 - 10
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pro vyhledávání: '"Yaouanc, A."'
We experimentally study the evolution of the magnetic moment $m$ and exchange interaction $J$ as a function of hydrostatic pressure in the zero-field helimagnetic phase of the strongly correlated electron system MnSi. The suppression of magnetic orde
Externí odkaz:
http://arxiv.org/abs/2411.09569
Autor:
Yaouanc, Alain Le, Richard, François
At ICHEP 2024 CMS has published RUN2 results for X650->ZZ->4leptons and reached the conclusion that there is no evidence for a scalar resonance H650 decaying into ZZ, as was also concluded by ATLAS using an MVA analysis optimised for a scalar particl
Externí odkaz:
http://arxiv.org/abs/2408.12178
Using recent measurements of exclusive B-meson decays we extract the $a_1$ factorization parameter in ${\overline{B}^{0}_{d}} \to D^{(*)^+} K^-/\pi^-$ decay channels. { The values obtained in the four channels are very similar, in agreement with the
Externí odkaz:
http://arxiv.org/abs/2405.10111
Autor:
Yaouanc, Alain Le, Richard, François
A global interpretation of several significant indications of scalar resonances observed at LHC is achieved using the Georgi Machacek model. Among many other consequences, one predicts large cross sections for the processes ggFH(320)->h(125)h(125) an
Externí odkaz:
http://arxiv.org/abs/2404.09827
Publikováno v:
Phys. Rev. B 109, L020408 (2024)
A thorough description of the physics of a magnetic compound requires the validation of its microscopic spin Hamiltonian. Here, from the analysis of muon-spin rotation spectra recorded in the magnetically ordered state at low temperature in zero and
Externí odkaz:
http://arxiv.org/abs/2401.10687
Autor:
Yaouanc, Alain Le, Richard, François
Several indications for neutral scalars are observed at the LHC. One of them, a broad resonance peaked at about 650 GeV which we call H(650), was first observed by an outsider combining published histograms from ATLAS and CMS on ZZ -> 4 leptons searc
Externí odkaz:
http://arxiv.org/abs/2308.12180
In view of the future Higgs factories, this work presents the status of scalar searches at the LHC with an emphasis on the H(650) resonance which has been observed in WW, ZZ and h(95)h(125) channels, with a cumulative evidence of about 7 s.d. global
Externí odkaz:
http://arxiv.org/abs/2211.11723
Autor:
de Reotier, P. Dalmas, Yaouanc, A.
Publikováno v:
Phys. Rev. B 105, L241104 (2022)
We consider the polarization function P^{exp}_Z(t) measured by the muon-spin relaxation (muSR) technique for the SrCr8Ga4O19 and ZnCu3(OH)6Cl2 spin-liquid systems. We show the functional form of P^{exp}_Z(t) to imply that, in the temperature range of
Externí odkaz:
http://arxiv.org/abs/2206.04352
Autor:
de Reotier, P. Dalmas, Yaouanc, A.
Publikováno v:
J. Magn. Magn. Mater. 537, 168086 (2021)
The low temperature dependence of the nuclear magnetic resonance frequency and spin-lattice relaxation rate measured in the chiral magnet MnSi by Yasuoka and coworkers [J. Phys. Soc. Jpn. 85, 073701 (2016)] is interpreted in terms of helimagnon excit
Externí odkaz:
http://arxiv.org/abs/2105.02194
We present a model for the vector and axial form factors of the transitions $\overline{B}^0 \to D^{**}$ in good agreement with the presently available data and based on the present theoretical knowledge, combining a) the safe lattice QCD predictions
Externí odkaz:
http://arxiv.org/abs/2102.11608