CERN Accelerating science

CERN Document Server Pronađeno je 16 zapisa  1 - 10slijedeći  idi na zapis: Pretraživanje je potrajalo 0.60 sekundi 
1.
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.
- 39.
Fulltext
2.
Collapsing Domain Wall Networks: Impact on Pulsar Timing Arrays and Primordial Black Holes / Ferreira, Ricardo Z. (Coimbra U.) ; Notari, Alessio (Barcelona U. ; INFN, Florence) ; Pujolàs, Oriol (BIST, Barcelona) ; Rompineve, Fabrizio (ICC, Barcelona U. ; BIST, Barcelona ; CERN)
Unstable domain wall (DW) networks in the early universe are cosmologically viable and can emit a large amount of gravitational waves (GW) before annihilating. As such, they provide an interpretation for the recent signal reported by Pulsar Timing Array (PTA) collaborations. [...]
arXiv:2401.14331; CERN-TH-2024-020.- 2024-06-11 - 16 p. - Published in : JCAP 2406 (2024) 020 Fulltext: document - PDF; 2401.14331 - PDF;
3.
Improved hot dark matter bound on the QCD axion / Notari, Alessio (Barcelona U. ; INFN, Florence) ; Rompineve, Fabrizio (CERN) ; Villadoro, Giovanni (ICTP, Trieste)
We strengthen the cosmological bound on the axion mass, by solving the momentum-dependent Boltzmann equations for axion-pion scatterings and by using a phenomenological production rate derived from pion-pion scattering data, overcoming the breakdown of chiral perturbation theory. Using present cosmological datasets we obtain ma0.24 eV. [...]
arXiv:2211.03799; CERN-TH-2022-165.- 2023-07-07 - 8 p. - Published in : Phys. Rev. Lett. 131 (2023) 011004 Fulltext: Publication - PDF; 2211.03799 - PDF;
4.
Gravitational Waves from Domain Walls in Pulsar Timing Array Datasets / Ferreira, Ricardo Z. (Barcelona, IFAE) ; Notari, Alessio (Barcelona U., ECM ; ICC, Barcelona U.) ; Pujolas, Oriol (Barcelona, IFAE) ; Rompineve, Fabrizio (CERN)
We present a model-independent search for the gravitational wave background from cosmic domain walls (DWs) in the NANOGrav 12.5 years dataset and International PTA Data Release 2. DWs that annihilate at temperatures 2050 MeV with tensions (40100 TeV)3 provide as good a fit to both datasets as the astrophysical background from supermassive black hole mergers. [...]
arXiv:2204.04228; CERN-TH-2022-214.- 2023-02-01 - 12 p. - Published in : JCAP 02 (2023) 001 Fulltext: 2204.04228 - PDF; document - PDF;
5.
Axion search with BabyIAXO in view of IAXO / Abeln, A. (Kirchhoff Inst. Phys.) ; Altenmüller, K. (Zaragoza U.) ; Cuendis, S. Arguedas (CERN) ; Armengaud, E. (IRFU, Saclay) ; Attié, D. (IRFU, Saclay) ; Aune, S. (IRFU, Saclay) ; Basso, S. (Brera Observ.) ; Bergé, L. (IJCLab, Orsay) ; Biasuzzi, B. (IRFU, Saclay) ; De Sousa, P.T.C. Borges (CERN) et al.
Axions are a natural consequence of the Peccei-Quinn mechanism, the most compelling solution to the strong-CP problem. Similar axion-like particles (ALPs) also appear in a number of possible extensions of the Standard Model, notably in string theories. [...]
arXiv:2012.06634.- SISSA, 2021-01-07 - 6 p. - Published in : PoS ICHEP2020 (2021) 631 Fulltext: PoS(ICHEP2020)631 - PDF; 2012.06634 - PDF;
In : 40th International Conference on High Energy Physics (ICHEP), Prague, Czech Republic, 28 Jul - 6 Aug 2020, pp.631
6.
Conceptual Design of BabyIAXO, the intermediate stage towards the International Axion Observatory / IAXO Collaboration
This article describes BabyIAXO, an intermediate experimental stage of the International Axion Observatory (IAXO), proposed to be sited at DESY. IAXO is a large-scale axion helioscope that will look for axions and axion-like particles (ALPs), produced in the Sun, with unprecedented sensitivity. [...]
arXiv:2010.12076.- 2021-05-17 - 77 p. - Published in : JHEP 2105 (2021) 137 Article from SCOAP3: PDF; Fulltext: 2010.12076 - PDF; document - PDF;
7.
Next Generation Search for Axion and ALP Dark Matter with the International Axion Observatory / Ruz, J (LLNL, Livermore) ; Vogel, J K (LLNL, Livermore) ; Armengaud, E (IRFU, Saclay) ; Attie, D (IRFU, Saclay) ; Basso, S (Brera Observ.) ; Brun, P (IRFU, Saclay) ; Bykovskiy, N (CERN) ; Carmona, J M (Zaragoza U.) ; Castel, J F (Zaragoza U.) ; Cebrián, S (Zaragoza U.) et al.
More than 80 years after the postulation of dark matter, its nature remains one of the fundamental questions in cosmology. Axions are currently one of the leading candidates for the hypothetical, non-baryonic dark matter that is expected to account for about 25% of the energy density of the Universe. [...]
2019 - 5 p. - Published in : 10.1109/NSSMIC.2018.8824640
In : 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2018), Sydney, Australia, 10 - 17 Nov 2018, pp.8824640
8.
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 gaγ1012 GeV1, or to electrons gae1013, IAXO has the potential to find the QCD axion in the 1 meV1 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;
9.
Exploring cosmic origins with CORE: Survey requirements and mission design / CORE Collaboration
Future observations of cosmic microwave background (CMB) polarisation have the potential to answer some of the most fundamental questions of modern physics and cosmology. In this paper, we list the requirements for a future CMB polarisation survey addressing these scientific objectives, and discuss the design drivers of the CORE space mission proposed to ESA in answer to the "M5" call for a medium-sized mission. [...]
arXiv:1706.04516.- 2018-04-05 - 79 p. - Published in : JCAP Fulltext: PDF; Preprint: PDF;
10.
Exploring Cosmic Origins with CORE: Inflation / Finelli, Fabio (Bologna Observ. ; INFN, Bologna) ; Bucher, Martin (APC, Paris) ; Achúcarro, Ana (Leiden U. ; Basque U., Bilbao) ; Ballardini, Mario (Bologna U. ; Bologna Observ. ; INFN, Bologna) ; Bartolo, Nicola (Padua U. ; INFN, Padua ; Padua Observ.) ; Baumann, Daniel (Cambridge U., DAMTP ; Amsterdam U.) ; Clesse, Sébastien (Aachen, Tech. Hochsch.) ; Errard, Josquin (ILP, Paris ; Paris U., VI-VII) ; Handley, Will (Cambridge U. ; Cambridge U., KICC) ; Hindmarsh, Mark (Sussex U. ; Helsinki Inst. of Phys. ; Helsinki U.) et al. /CORE
We forecast the scientific capabilities to improve our understanding of cosmic inflation of CORE, a proposed CMB space satellite submitted in response to the ESA fifth call for a medium-size mission opportunity. The CORE satellite will map the CMB anisotropies in temperature and polarization in 19 frequency channels spanning the range 60-600 GHz. [...]
arXiv:1612.08270.- 2018-04-05 - 100 p. - Published in : JCAP 04 (2018) 016 Fulltext: PDF;

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