CERN Accelerating science

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1.
New Upper Limit on the Axion-Photon Coupling with an Extended CAST Run with a Xe-Based Micromegas Detector / CAST Collaboration
Hypothetical axions provide a compelling explanation for dark matter and could be emitted from the hot solar interior. The CERN Axion Solar Telescope (CAST) has been searching for solar axions via their back conversion to X-ray photons in a 9-T 10-m long magnet directed towards the Sun. [...]
arXiv:2406.16840.- 2024-11-27 - 9 p. - Published in : Phys. Rev. Lett. 133 (2024) 221005 Fulltext: Publication - PDF; 2406.16840 - PDF;
2.
An accurate solar axions ray-tracing response of BabyIAXO / IAXO collaboration
BabyIAXO is the intermediate stage of the International Axion Observatory (IAXO) to be hosted at DESY. [...]
arXiv:2411.13915.
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3.
First results of the CAST-RADES haloscope search for axions at 34.67 $\mu$eV / CAST Collaboration
We present results of the Relic Axion Dark-Matter Exploratory Setup (RADES), a detector which is part of the CERN Axion Solar Telescope (CAST), searching for axion dark matter in the 34.67$\mu$eV mass range. A radio frequency cavity consisting of 5 sub-cavities coupled by inductive irises took physics data inside the CAST dipole magnet for the first time using this filter-like haloscope geometry. [...]
arXiv:2104.13798; CERN-EP-2021-070.- 2021 - 14 p. - Published in : JHEP 2021 (2021) 075 Fulltext: PDF;
4.
Quantum gravity phenomenology at the dawn of the multi-messenger era—A review / Addazi, A. (SCU, Chengdu ; Frascati) ; Alvarez-Muniz, J. (Santiago de Compostela U., IGFAE) ; Alves Batista, R. (Madrid, IFT) ; Amelino-Camelia, G. (Naples U. ; INFN, Naples) ; Antonelli, V. (Milan U. ; INFN, Milan) ; Arzano, M. (Naples U. ; INFN, Naples) ; Asorey, M. (Zaragoza U.) ; Atteia, J.-L. (IRAP, Toulouse) ; Bahamonde, S. (Tartu, Inst. Phys. ; Tokyo Inst. Tech.) ; Bajardi, F. (Naples U.) et al.
The exploration of the universe has recently entered a new era thanks to the multi-messenger paradigm, characterized by a continuous increase in the quantity and quality of experimental data that is obtained by the detection of the various cosmic messengers (photons, neutrinos, cosmic rays and gravitational waves) from numerous origins. They give us information about their sources in the universe and the properties of the intergalactic medium. [...]
arXiv:2111.05659.- 2022-07 - 119 p. Fulltext: PDF;
5.
Measurement of $CP$ violation observables in $D^+\to K^-K^+\pi^+$ decays / LHCb Collaboration
A search for violation of the charge-parity ($CP$) symmetry in the $D^+\rightarrow K^-K^+\pi^+$ decay is presented, with proton-proton collision data corresponding to an integrated luminosity of 5.4 fb$^{-1}$, collected at a center-of-mass energy of 13 TeV with the LHCb detector. A novel model-independent technique is used to compare the $D^+$ and $D^-$ phase-space distributions, with instrumental asymmetries subtracted using the $D^+{s}\rightarrow K^-K^+\pi^+$ decay as a control channel. [...]
arXiv:2409.01414; CERN-EP-2024-204; LHCb-PAPER-2024-019.- Geneva : CERN, 2024-12-16 - 13 p. - Published in : Phys. Rev. Lett. 133 (2024) 251801 Fulltext: 2409.01414v1 - PDF; 2409.01414 - PDF; Related data file(s): ZIP;
6.
Physics potential of the International Axion Observatory (IAXO) / IAXO Collaboration
We review the physics potential of a next generation search for solar axions: the International Axion Observatory (IAXO). Endowed with a sensitivity to discover axion-like particles (ALPs) with a coupling to photons as small as $g_{a\gamma}\sim 10^{-12}$ GeV$^{-1}$, or to electrons $g_{ae}\sim$10$^{-13}$, IAXO has the potential to find the QCD axion in the 1 meV$\sim$1 eV mass range where it solves the strong CP problem, can account for the cold dark matter of the Universe and be responsible for the anomalous cooling observed in a number of stellar systems. [...]
arXiv:1904.09155.- 2019-06-24 - 82 p. - Published in : JCAP 1906 (2019) 047 Fulltext: arXiv:1904.09155 - PDF; 1904.09155 - PDF;
7.
Accurate gamma and MeV-electron track reconstruction with an ultra-low diffusion Xenon/TMA TPC at 10 atmospheres / NEXT Collaboration
We report the performance of a 10 atm Xenon/trimethylamine time projection chamber (TPC) for the detection of X-rays (30 keV) and gamma-rays (0.511-1.275 MeV) in conjunction with the accurate tracking of the associated electrons. When operated at such a high pressure and in 1%-admixtures, trimethylamine (TMA) endows Xenon with an extremely low electron diffusion (1.3 +-0.13 mm-sigma (longitudinal), 0.8 +-0.15 mm-sigma (transverse) along 1 m drift) besides forming a convenient Penning-Fluorescent mixture. [...]
arXiv:1504.03678.- 2015-12-21 - 17 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 804 (2015) 8-24 Elsevier Open Access article: PDF; Fulltext: PDF; External link: Preprint
8.
Search for dark matter axions with CAST-CAPP / Adair, C.M. (British Columbia U.) ; Altenmüller, K. (Zaragoza U.) ; Anastassopoulos, V. (Patras U.) ; Cuendis, S. Arguedas (CERN) ; Baier, J. (Freiburg U.) ; Barth, K. (CERN) ; Belov, A. (Moscow, INR) ; Bozicevic, D. (Rijeka U.) ; Bräuninger, H. (Garching, Max Planck Inst., MPE) ; Cantatore, G. (INFN, Trieste ; Trieste U.) et al.
The CAST-CAPP axion haloscope, operating at CERN inside the CAST dipole magnet, has searched for axions in the 19.74 $\mu$eV to 22.47 $\mu$eV mass range. The detection concept follows the Sikivie haloscope principle, where Dark Matter axions convert into photons within a resonator immersed in a magnetic field. [...]
arXiv:2211.02902.- 2022-10-19 - 9 p. - Published in : Nature Commun. 13 (2022) 6180 Fulltext: 2211.02902 - PDF; s41467-022-33913-6 - PDF;
9.
First proof of topological signature in high pressure xenon gas with electroluminescence amplification / NEXT Collaboration
The NEXT experiment aims to observe the neutrinoless double beta decay of xenon in a high-pressure Xe136 gas TPC using electroluminescence (EL) to amplify the signal from ionization. One of the main advantages of this technology is the possibility to reconstruct the topology of events with energies close to Qbb. [...]
arXiv:1507.05902; FERMILAB-PUB-15-648-CD-ND.- 2016-01-19 - 18 p. - Published in : JHEP 01 (2016) 104 Article from SCOAP3: PDF; Fulltext: PDF; Springer Open Access article: PDF; External link: Fermilab Library Server (fulltext available)
10.
Design of New Resonant Haloscopes in the Search for the Dark Matter Axion: A Review of the First Steps in the RADES Collaboration / Díaz-Morcillo, Alejandro (Cartagena Politecnica U.) ; Barceló, José María García (Cartagena Politecnica U.) ; Guerrero, Antonio José Lozano (Cartagena Politecnica U.) ; Navarro, Pablo (Cartagena Politecnica U.) ; Gimeno, Benito (Valencia U., IFIC) ; Cuendis, Sergio Arguedas (CERN) ; Melcón, Alejandro Álvarez (Cartagena Politecnica U.) ; Cogollos, Cristian (Barcelona, IEEC) ; Calatroni, Sergio (CERN) ; Döbrich, Babette (CERN) et al.
Within the increasing interest in the dark matter axion detection through haloscopes, in which different international groups are currently involved, the RADES group was established in 2016 with the goal of developing very sensitive detection systems to be operated in dipole magnets. This review deals with the work developed by this collaboration during its first five years, from the first designs, based on the multi-cavity concept, aiming to increase the haloscope volume and, so, to improve its sensitivity, their evolution, the data acquisition design, and, finally, the first experimental run. [...]
arXiv:2111.14510.- 2021-12-23 - 24 p. - Published in : Universe 8 (2021) 5 Fulltext: 2111.14510 - PDF; document - PDF;

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