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Author Pena-Garay, C.; Verde, L.; Jimenez, R.
Title Neutrino footprint in large scale structure Type Journal Article
Year 2017 Publication Physics of the Dark Universe Abbreviated Journal Phys. Dark Universe
Volume (down) 15 Issue Pages 31-34
Keywords Cosmology; Neutrinos; Large scale structure
Abstract Recent constrains on the sum of neutrino masses inferred by analyzing cosmological data, show that detecting a non-zero neutrino mass is within reach of forthcoming cosmological surveys. Such a measurement will imply a direct determination of the absolute neutrino mass scale. Physically, the measurement relies on constraining the shape of the matter power spectrum below the neutrino free streaming scale: massive neutrinos erase power at these scales. However, detection of a lack of small-scale power from cosmological data could also be due to a host of other effects. It is therefore of paramount importance to validate neutrinos as the source of power suppression at small scales. We show that, independent on hierarchy, neutrinos always show a footprint on large, linear scales; the exact location and properties are fully specified by the measured power suppression (an astrophysical measurement) and atmospheric neutrinos mass splitting (a neutrino oscillation experiment measurement). This feature cannot be easily mimicked by systematic uncertainties in the cosmological data analysis or modifications in the cosmological model. Therefore the measurement of such a feature, up to 1% relative change in the power spectrum for extreme differences in the mass eigenstates mass ratios, is a smoking gun for confirming the determination of the absolute neutrino mass scale from cosmological observations. It also demonstrates the synergy between astrophysics and particle physics experiments.
Address [Verde, Licia; Jimenez, Raul] Univ Barcelona, ICREA, Marti & Franques 1, E-08028 Barcelona, Spain, Email: liciaverde@gmail.com
Corporate Author Thesis
Publisher Elsevier Science Bv Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2212-6864 ISBN Medium
Area Expedition Conference
Notes WOS:000401825700003 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 3138
Permanent link to this record
 
 
Author Castillo-Felisola, O.; Grez, B.; Morocho-Lopez, M.; Perdiguero, J.; Skirzewski, A.; Vaca-Santana, J.; Zambra-Gomez, N.
Title Polynomial Affine Model of Gravity: After 10 Years Type Journal Article
Year 2025 Publication Universe Abbreviated Journal Universe
Volume (down) 11 Issue 3 Pages 102 - 42pp
Keywords alternative models of gravity; affine gravity; cosmological models; affine connection; emergent metric; cosmological perturbations; affine foliations
Abstract The polynomial affine model of gravity was proposed as an alternative to metric and metric-affine gravitational models. What, in the beginning, was thought to be a source of unpredictability-the presence of many terms in the action-turned out to be a milestone since it contains all possible combinations of the fields compatible with the covariance under diffeomorphisms. Here, we present a review of the advances in the analysis of the model after 10 years of its proposal and sketch the guidelines for our future perspectives.
Address [Castillo-Felisola, Oscar; Grez, Bastian; Vaca-Santana, Jefferson; Zambra-Gomez, Nicolas] Univ Tecn Federico Santa Maria, Dept Fis, Casilla 110-V, Valparaiso 2340000, Chile, Email: o.castillo.felisola@proton.me;
Corporate Author Thesis
Publisher Mdpi Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes WOS:001452975500001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 6575
Permanent link to this record
 
 
Author Sanchis-Lozano, M.A.
Title Probing the Topology of the Early Universe Using CMB Temperature and Polarization Anisotropies Type Journal Article
Year 2025 Publication Universe Abbreviated Journal Universe
Volume (down) 11 Issue 9 Pages 306 - 19pp
Keywords cosmic microwave background; polarization; angular correlations; topology; extra-dimension; early-universe; inflation; <italic>LiteBIRD</italic>
Abstract The temperature and polarization anisotropies of the cosmic microwave background (CMB) as measured today can offer key insights into the topology of the early universe prior to inflation, for example by discriminating between flat and warped geometries. In this paper, we focus on a Kaluza-Klein model with an extra spatial dimension that compactifies at the Grand Unified Theory (GUT) epoch, subject to mixed Neumann/Dirichlet boundary conditions at fixed points. As a consequence, a set of Infrared (IR) cutoffs emerges in both the scalar and tensor spectra, leading to observable consequences in the CMB. We examine the possible signatures of such a topology in detail, particularly in relation to the even-odd parity imbalance already reported by the COBE, WMAP and Planck missions in the temperature angular correlations. Furthermore, we extend our analysis to the existing Planck E-mode polarization data and to the high-precision B-mode polarization measurements expected from the forthcoming LiteBIRD mission.
Address [Sanchis-Lozano, Miguel-Angel] Univ Valencia, IFIC Inst Fis Corpuscular, CSIC, Paterna 46980, Spain, Email: miguel.angel.sanchis@ific.uv.es
Corporate Author Thesis
Publisher Mdpi Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes WOS:001581349400001 Approved no
Is ISI yes International Collaboration no
Call Number IFIC @ pastor @ Serial 6866
Permanent link to this record
 
 
Author Olmo, G.J.; Pinto, M.A.S.
Title On Energy-Momentum Conservation in Non-Minimal Geometry-Matter Coupling Theories Type Journal Article
Year 2025 Publication Universe Abbreviated Journal Universe
Volume (down) 11 Issue 12 Pages 386 - 10pp
Keywords matter-curvature couplings; modified gravity; nonlinear electrodynamics
Abstract In this work, we discuss the conditions that allow the establishment of an equivalence between f(R,T)=R+lambda h(T) gravity models and General Relativity (GR) coupled to a modified matter sector. We do so by considering a D-dimensional spacetime and the matter sector described by nonlinear electrodynamics and/or a scalar field. We find that, for this particular family of models, the action and field equations can indeed be written in terms of a modified matter source within GR. However, when several matter sources are combined, this interpretation is no longer possible if h(T) is a nonlinear function, due to the emergence of crossed terms that mix together the scalar and vector sectors.
Address [Olmo, Gonzalo J.] Univ Valencia, Inst Fis Corpuscular IFIC, CSIC, Paterna 46980, Spain, Email: gonzalo.olmo@uv.es;
Corporate Author Thesis
Publisher Mdpi Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes WOS:001647514600001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 6999
Permanent link to this record
 
 
Author Balbinot, R.; Fabbri, A.
Title The Unruh Vacuum and the “In-Vacuum” in Reissner-Nordström Spacetime Type Journal Article
Year 2024 Publication Universe Abbreviated Journal Universe
Volume (down) 10 Issue 1 Pages 18 - 14pp
Keywords Hawking radiation; Unruh vacuum; Reissner-Nordstrom black holes
Abstract The Unruh vacuum is widely used as a quantum state to describe black hole evaporation since, near the horizon, it reproduces the physical state of a quantum field, the so-called “in-vacuum”, in the case where a black hole is formed by gravitational collapse. We examine the relation between these two quantum states in the background spacetime of a Reissner-Nordstrom black hole (both extremal and not), highlighting the similarities and striking differences.
Address [Balbinot, Roberto] Univ Bologna, Dipartimento Fis, Via Irnerio 46, I-40126 Bologna, Italy, Email: roberto.balbinot@unibo.it;
Corporate Author Thesis
Publisher Mdpi Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes WOS:001151025300001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 5914
Permanent link to this record
 
 
Author Maluf, R.V.; Mora-Perez, G.; Olmo, G.J.; Rubiera-Garcia, D.
Title Nonsingular, Lump-like, Scalar Compact Objects in (2+1)-Dimensional Einstein Gravity Type Journal Article
Year 2024 Publication Universe Abbreviated Journal Universe
Volume (down) 10 Issue 6 Pages 258 - 13pp
Keywords Einstein gravity; compact objects; nonlinear scalar field
Abstract We study the space-time geometry generated by coupling a free scalar field with a noncanonical kinetic term to general relativity in (2+1) dimensions. After identifying a family of scalar Lagrangians that yield exact analytical solutions in static and circularly symmetric scenarios, we classify the various types of solutions and focus on a branch that yields asymptotically flat geometries. We show that the solutions within such a branch can be divided in two types, namely naked singularities and nonsingular objects without a center. In the latter, the energy density is localized around a maximum and vanishes only at infinity and at an inner boundary. This boundary has vanishing curvatures and cannot be reached by any time-like or null geodesic in finite affine time. This allows us to consistently interpret such solutions as nonsingular, lump-like, static compact scalar objects whose eventual extension to the (3+1)-dimensional context could provide structures of astrophysical interest.
Address [Maluf, Roberto V.; Olmo, Gonzalo J.] Univ Fed Ceara UFC, Dept Fis, Campus Pici, BR-60455760 Fortaleza, Ceara, Brazil, Email: r.v.maluf@fisica.ufc.br;
Corporate Author Thesis
Publisher Mdpi Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes WOS:001256495600001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 6169
Permanent link to this record
 
 
Author Real, D.; Calvo, D.
Title Silicon Photomultipliers for Neutrino Telescopes Type Journal Article
Year 2023 Publication Universe Abbreviated Journal Universe
Volume (down) 9 Issue 7 Pages 326 - 14pp
Keywords silicon photomultipliers; neutrino telescopes; time to digital converters; electronics acquisition
Abstract Neutrino astronomy has opened a new window to the extreme Universe, entering into a fruitful era built upon the success of neutrino telescopes, which have already given a new step forward in this novel and growing field by the first observation of steady point-like sources already achieved by IceCube. Neutrino telescopes equipped with Silicon PhotoMultipliers (SiPMs) will significantly increase in number, because of their excellent time resolution and the angular resolution, and will be in better condition to detect more steady sources as well as the unexpected. The use of SiPMs represents a challenge to the acquisition electronics because of the fast signals as well as the high levels of dark noise produced by SiPMs. The acquisition electronics need to include a noise rejection scheme by implementing a coincidence filter between channels. This work discusses the advantages and disadvantages of using SiPMs for the next generation of neutrino telescopes, focusing on the possible developments that could help for their adoption in the near future.
Address [Real, Diego; Calvo, David] Univ Valencia, Inst Fis Corpuscular, CSIC, IFIC, C Catedrat Jose Beltran 2, Valencia 46980, Spain, Email: real@ific.uv.es
Corporate Author Thesis
Publisher Mdpi Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes WOS:001038900800001 Approved no
Is ISI yes International Collaboration no
Call Number IFIC @ pastor @ Serial 5593
Permanent link to this record
 
 
Author Davesne, D.; Pastore, A.; Navarro, J.
Title Hartree-Fock Calculations in Semi-Infinite Matter with Gogny Interactions Type Journal Article
Year 2023 Publication Universe Abbreviated Journal Universe
Volume (down) 9 Issue 9 Pages 398 - 11pp
Keywords Nuclear Density Functional Theory; semi-infinite nuclear matter; Hartree-Fock equations; 21.60.Jz; 21.65.-f; 21.65.Mn
Abstract Hartree-Fock equations in semi-infinite nuclear matter for finite range Gogny interactions are presented together with a detailed numerical scheme to solve them. The value of the surface energy is then extracted and given for standard Gogny interactions.
Address [Davesne, Dany] Univ Lyon 1, Inst Phys Infinis Lyon 2, CNRS, IN2P3, 43 Bd 11 Novembre 1918, F-69622 Villeurbanne, France, Email: davesne@ipnl.in2p3.fr;
Corporate Author Thesis
Publisher Mdpi Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes WOS:001074530100001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 5693
Permanent link to this record
 
 
Author Diaz-Morcillo, A.; Barcelo, J.M.G.; Guerrero, A.J.L.; Navarro, P.; Gimeno, B.; Cuneáis, S.A.; Melcon, A.A.; Cogollos, C.; Calatroni, S.; Dobrich, B.; Gallego-Puyol, J.D.; Golm, J.; Irastorza, I.G.; Malbrunot, C.; Miralda-Escude, J.; Garay, C.P.; Redondo, J.; Wuensch, W.
Title Design of New Resonant Haloscopes in the Search for the Dark Matter Axion: A Review of the First Steps in the RADES Collaboration Type Journal Article
Year 2022 Publication Universe Abbreviated Journal Universe
Volume (down) 8 Issue 1 Pages 5 - 22pp
Keywords axions; dark matter detectors; haloscopes; resonant cavities
Abstract With the increasing interest in 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 thereby improve sensitivity-to their evolution, data acquisition design, and finally, the first experimental run. Moreover, the envisaged work within RADES for both dipole and solenoid magnets in the short and medium term is also presented.
Address [Diaz-Morcillo, Alejandro; Garcia Barcelo, Jose Maria; Lozano Guerrero, Antonio Jose; Navarro, Pablo; Alvarez Melcon, Alejandro] Univ Politecn Cartagena, Dept Informat & Commun Technol, Cartagena 30202, Spain, Email: alejandro.diaz@upct.es;
Corporate Author Thesis
Publisher Mdpi Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes WOS:000746970600001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 5086
Permanent link to this record
 
 
Author Perez-Perez, J.; Amare, J.C.; Bandac, I.C.; Bayo, A.; Borjabad-Sanchez, S.; Calvo-Mozota, J.M.; Cid-Barrio, L.; Hernandez-Antolin, R.; Hernandez-Molinero, B.; Novella, P.; Pelczar, K.; Pena-Garay, C.; Romeo, B.; Ortiz de Solorzano, A.; Sorel, M.; Torrent, J.; Uson, A.; Wojna-Pelczar, A.; Zuzel, G.
Title Radon Mitigation Applications at the Laboratorio Subterráneo de Canfranc (LSC) Type Journal Article
Year 2022 Publication Universe Abbreviated Journal Universe
Volume (down) 8 Issue 2 Pages 112 - 20pp
Keywords radon; neutrinos; HPGe-detector; LSC
Abstract The Laboratorio Subterraneo de Canfranc (LSC) is the Spanish national hub for low radioactivity techniques and the associated scientific and technological applications. The concentration of the airborne radon is a major component of the radioactive budget in the neighborhood of the detectors. The LSC hosts a Radon Abatement System, which delivers a radon suppressed air with 1.1 & PLUSMN;0.2 mBq/m(3) of Rn-222. The radon content in the air is continuously monitored with an Electrostatic Radon Monitor. Measurements with the double beta decay demonstrators NEXT-NEW and CROSS and the gamma HPGe detectors show the important reduction of the radioactive background due to the purified air in the vicinity of the detectors. We also discuss the use of this facility in the LSC current program which includes NEXT-100, low background biology experiments and radiopure copper electroformation equipment placed in the radon-free clean room.
Address [Perez-Perez, Javier; Bandac, Iulian Catalin; Bayo, Alberto; Borjabad-Sanchez, Silvia; Calvo-Mozota, Jose Maria; Cid-Barrio, Laura; Hernandez-Antolin, Rebecca; Hernandez-Molinero, Beatriz; Pena-Garay, Carlos; Romeo, Beatriz] Lab Subterraneo Canfranc LSC, Canfranc Estn 22880, Spain, Email: javier.perez.perez@uj.edu.pl;
Corporate Author Thesis
Publisher Mdpi Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Notes WOS:000762509500001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 5143
Permanent link to this record