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1,045 results on '"Gallego, S"'

1. Search for Very-Short-Baseline Oscillations of Reactor Antineutrinos with the SoLid Detector

Author

Abreu, Y., Amhis, Y., Arnold, L., Beaumont, W., Bolognino, I., Bongrand, M., Boursette, D., Buridon, V., Chanal, H., Coupé, B., Crochet, P., Cussans, D., D'Hondt, J., Durand, D., Fallot, M., Galbinski, D., Gallego, S., Ghys, L., Giot, L., Graves, K., Guillon, B., Hayashida, S., Henaff, D., Hosseini, B., Kalcheva, S., Kalousis, L. N., Keloth, R., Koch, L., Labare, M., Lehaut, G., Manley, S., Manzanillas, L., Mermans, J., Michiels, I., Monteil, S., Moortgat, C., Newbold, D., Pestel, V., Petridis, K., Piñera, I., de Roeck, A., Roy, N., Ryckbosch, D., Ryder, N., Saunders, D., Schune, M. H., Settimo, M., Sfar, H. Rejeb, Simard, L., Vacheret, A., Van Dyck, S., Van Mulders, P., Van Remortel, N., Vandierendonck, G., Vercaemer, S., Verstraeten, M., Viaud, B., Weber, A., Yeresko, M., and Yermia, F.

Subjects
High Energy Physics - Experiment
Abstract

In this letter we report the first scientific result based on antineutrinos emitted from the BR2 reactor at SCK CEN. The SoLid experiment uses a novel type of highly granular detector whose basic detection unit combines two scintillators, PVT and 6LiF:ZnS(Ag), to measure antineutrinos via their inverse-beta-decay products. An advantage of PVT is its highly linear response as a function of deposited particle energy. The full-scale detector comprises 12800 voxels and operates over a very short 6.3--8.9 m baseline from the reactor core. The detector segmentation and its 3D imaging capabilities facilitate the extraction of the positron energy from the rest of the visible energy, allowing the latter to be utilised for signal-background discrimination. We present a result based on 280 reactor-on days (55 MW mean power) and 172 reactor-off days, respectively, of live data-taking. A total of 29479 $\pm$ 603 (stat.) antineutrino candidates have been selected, corresponding to an average rate of 105 events per day and a signal-to-background ratio of 0.27. A search for disappearance of antineutrinos to a sterile state has been conducted using complementary model-dependent frequentist and Bayesian fits, providing constraints on the allowed region of the Reactor Antineutrino Anomaly., Comment: 8 pages, 6 figures

Published
2024

2. Determinación de las constantes ópticas y el espesor de materiales holográficos

Author

Beléndez, A., Ortuño, M., Gallego, S., Beléndez, T., Neipp, C., and Pascual, I.

Subjects
Holographic recording materials, Capas delgadas, Constantes ópticas, Materiales de registro holográfico, Clay industries. Ceramics. Glass, TP785-869
Abstract

A technique to evaluate the refractive index, the absorption coefficient and the thickness of holographic recording materials is presented. The materials are in the form of a thin layer of film deposited on a thick glass plate. The experimental reflectances of p-polarized light are measured as a function of the incident angle, and the values of refractive index, thickness and absorption coefficient of the layer are obtained using the theoretical equation for reflectance. As examples, holographic silver halide emulsions and photopolymers are analyzed. The agreement between the calculated reflectances, using the thickness and refractive index obtained, and the measured reflectances is satisfactory.Se presenta una técnica experimental para determinar el índice de refracción, el coeficiente de absorción y el espesor de materiales de registro holográfico. Los materiales están depositados como capas finas sobre una lámina planoparalela de vidrio. Se determina experimentalmente la reflectancia en función del ángulo de incidencia para luz polarizada linealmente paralela al plano de incidencia, de modo que los valores del índice de refracción, el coeficiente de absorción y el espesor se obtienen ajustando la ecuación de la reflectancia teórica a los datos experimentales. Como ejemplos se han analizado emulsiones fotográficas y fotopolímeros, obteniéndose un buen ajuste entre la función teórica y los datos experimentales.

Published
2004

3. The CCube reconstruction algorithm for the SoLid experiment

Author

Abreu, Y., Amhis, Y., Arnold, L., Barber, G., Beaumont, W., Binet, S., Bolognino, I., Bongrand, M., Borg, J., Boursette, D., Buridon, V., Castle, B.C., Chanal, H., Clark, K., Coupé, B., Crochet, P., Cussans, D., De Roeck, A., Durand, D., Durkin, T., Fallot, M., Galbinski, D., Gallego, S., Ghys, L., Giot, L., Graves, K., Guillon, B., Henaff, D., Hosseini, B., Jenzer, S., Kalcheva, S., Kalousis, L.N., Keloth, R., Koch, L., Labare, M., Lehaut, G., Manley, S., Manzanillas, L., Mermans, J., Michiels, I., Monteil, S., Moortgat, C., Newbold, D., Pestel, V., Petridis, K., Piñera, I., Popescu, L., Roy, N., Ryckbosch, D., Ryder, N., Saunders, D., Schune, M.-H., Rejeb Sfar, H., Simard, L., Vacheret, A., Vandierendonck, G., Van Dyck, S., Van Mulders, P., van Remortel, N., Vercaemer, S., Verstraeten, M., Viaud, B., Weber, A., Yeresko, M., and Yermia, F.

Published
2024
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4. Constraints on the structure and seasonal variations of Triton's atmosphere from the 5 October 2017 stellar occultation and previous observations

Author

Oliveira, J. Marques, Sicardy, B., Gomes-Júnior, A. R., Ortiz, J. L., Strobel, D. F., Bertrand, T., Forget, F., Lellouch, E., Desmars, J., Bérard, D., Doressoundiram, A., Lecacheux, J., Leiva, R., Meza, E., Roques, F., Souami, D., Widemann, T., Santos-Sanz, P., Morales, N., Duffard, R., Fernández-Valenzuela, E., Castro-Tirado, A. J., Braga-Ribas, F., Morgado, B. E., Assafin, M., Camargo, J. I. B., Vieira-Martins, R., Benedetti-Rossi, G., Santos-Filho, S., Banda-Huarca, M. V., Quispe-Huaynasi, F., Pereira, C. L., Rommel, F. L., Margoti, G., Dias-Oliveira, A., Colas, F., Berthier, J., Renner, S., Hueso, R., Pérez-Hoyos, S., Sánchez-Lavega, A., Rojas, J. F., Beisker, W., Kretlow, M., Herald, D., Gault, D., Bath, K. -L., Bode, H. -J., Bredner, E., Guhl, K., Haymes, T. V., Hummel, E., Kattentidt, B., Klös, O., Pratt, A., Thome, B., Avdellidou, C., Gazeas, K., Karampotsiou, E., Tzouganatos, L., Kardasis, E., Christou, A. A., Xilouris, E. M., Alikakos, I., Gourzelas, A., Liakos, A., Charmandaris, V., Jelínek, M., Štrobl, J., Eberle, A., Rapp, K., Gährken, B., Klemt, B., Kowollik, S., Bitzer, R., Miller, M., Herzogenrath, G., Frangenberg, D., Brandis, L., Pütz, I., Perdelwitz, V., Piehler, G. M., Riepe, P., von Poschinger, K., Baruffetti, P., Cenadelli, D., Christille, J. -M., Ciabattari, F., Di Luca, R., Alboresi, D., Leto, G., Sanchez, R. Zanmar, Bruno, P., Occhipinti, G., Morrone, L., Cupolino, L., Noschese, A., Vecchione, A., Scalia, C., Savio, R. Lo, Giardina, G., Kamoun, S., Barbosa, R., Behrend, R., Spano, M., Bouchet, E., Cottier, M., Falco, L., Gallego, S., Tortorelli, L., Sposetti, S., Sussenbach, J., Abbeel, F. Van Den, André, P., Llibre, M., Pailler, F., Ardissone, J., Boutet, M., Sanchez, J., Bretton, M., Cailleau, A., Pic, V., Granier, L., Chauvet, R., Conjat, M., Dauvergne, J. L., Dechambre, O., Delay, P., Delcroix, M., Rousselot, L., Ferreira, J., Machado, P., Tanga, P., Rivet, J. -P., Frappa, E., Irzyk, M., Jabet, F., Kaschinski, M., Klotz, A., Rieugnie, Y., Klotz, A. N., Labrevoir, O., Lavandier, D., Walliang, D., Leroy, A., Bouley, S., Lisciandra, S., Coliac, J. -F., Metz, F., Erpelding, D., Nougayrède, P., Midavaine, T., Miniou, M., Moindrot, S., Morel, P., Reginato, B., Reginato, E., Rudelle, J., Tregon, B., Tanguy, R., David, J., Thuillot, W., Hestroffer, D., Vaudescal, G., Aissa, D. Baba, Grigahcene, Z., Briggs, D., Broadbent, S., Denyer, P., Haigh, N. J., Quinn, N., Thurston, G., Fossey, S. J., Arena, C., Jennings, M., Talbot, J., Alonso, S., Reche, A. Román, Casanova, V., Briggs, E., Iglesias-Marzoa, R., Ibáñez, J. Abril, Martín, M. C. Díaz, González, H., García, J. L. Maestre, Marchant, J., Ordonez-Etxeberria, I., Martorell, P., Salamero, J., Organero, F., Ana, L., Fonseca, F., Peris, V., Brevia, O., Selva, A., Perello, C., Cabedo, V., Gonçalves, R., Ferreira, M., Dias, F. Marques, Daassou, A., Barkaoui, K., Benkhaldoun, Z., Guennoun, M., Chouqar, J., Jehin, E., Rinner, C., Lloyd, J., Moutamid, M. El, Lamarche, C., Pollock, J. T., Caton, D. B., Kouprianov, V., Timerson, B. W., Blanchard, G., Payet, B., Peyrot, A., Teng-Chuen-Yu, J. -P., Françoise, J., Mondon, B., Payet, T., Boissel, C., Castets, M., Hubbard, W. B., Hill, R., Reitsema, H. J., Mousis, O., Ball, L., Neilsen, G., Hutcheon, S., Lay, K., Anderson, P., Moy, M., Jonsen, M., Pink, I., Walters, R., and Downs, B.

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

A stellar occultation by Neptune's main satellite, Triton, was observed on 5 October 2017 from Europe, North Africa, and the USA. We derived 90 light curves from this event, 42 of which yielded a central flash detection. We aimed at constraining Triton's atmospheric structure and the seasonal variations of its atmospheric pressure since the Voyager 2 epoch (1989). We also derived the shape of the lower atmosphere from central flash analysis. We used Abel inversions and direct ray-tracing code to provide the density, pressure, and temperature profiles in the altitude range $\sim$8 km to $\sim$190 km, corresponding to pressure levels from 9 {\mu}bar down to a few nanobars. Results. (i) A pressure of 1.18$\pm$0.03 {\mu}bar is found at a reference radius of 1400 km (47 km altitude). (ii) A new analysis of the Voyager 2 radio science occultation shows that this is consistent with an extrapolation of pressure down to the surface pressure obtained in 1989. (iii) A survey of occultations obtained between 1989 and 2017 suggests that an enhancement in surface pressure as reported during the 1990s might be real, but debatable, due to very few high S/N light curves and data accessible for reanalysis. The volatile transport model analysed supports a moderate increase in surface pressure, with a maximum value around 2005-2015 no higher than 23 {\mu}bar. The pressures observed in 1995-1997 and 2017 appear mutually inconsistent with the volatile transport model presented here. (iv) The central flash structure does not show evidence of an atmospheric distortion. We find an upper limit of 0.0011 for the apparent oblateness of the atmosphere near the 8 km altitude., Comment: 52 pages, 26 figures in the main paper, 2 figures in appendix B, 9 figures in appendix C, 1 long table over 5 pages

Published
2022
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6. A giant Ly$\alpha$ nebula and a small-scale clumpy outflow in the system of the exotic quasar J0952+0114 unveiled by MUSE

Author

Marino, R. A., Cantalupo, S., Pezzulli, G., Lilly, S. J., Gallego, S., Mackenzie, R., Matthee, J., Brinchmann, J., Bouché, N., Feltre, A., Muzahid, S., Schroetter, I., Johnson, S. D., and Nanayakkara, T.

Subjects
Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The well-known quasar SDSS J095253.83+011421.9 (J0952+0114) at z=3.02 has one of the most peculiar spectra discovered so far, showing the presence of narrow Ly$\alpha$ and broad metal emission lines. Although recent studies have suggested that a Proximate Damped Ly$\alpha$ system (PDLA) causes this peculiar spectrum, the origin of the gas associated with the PDLA is unknown. Here we report the results of MUSE observations that reveal a new giant ($\approx$ 100 physical kpc) Lyman $\alpha$ nebula. The detailed analysis of the Ly$\alpha$ velocity, velocity dispersion, and surface brightness profiles suggests that the J0952+0114 Ly$\alpha$ nebula shares similar properties of other QSO nebulae previously detected with MUSE, implying that the PDLA in J0952+0144 is covering only a small fraction of the QSO emission solid angle. We also detected bright and spectrally narrow CIV$\lambda$1550 and HeII$\lambda$1640 extended emission around J0952+0114 with velocity centroids similar to the peak of the extended and central narrow Ly$\alpha$ emission. The presence of a peculiarly bright, unresolved, and relatively broad HeII$\lambda$1640 emission in the central region at exactly the same PDLA redshift hints at the possibility that the PDLA originates in a clumpy outflow with a bulk velocity of about 500 km/s. The smaller velocity dispersion of the large scale Ly$\alpha$ emission suggests that the high-speed outflow is confined to the central region. Lastly, the derived spatially resolved HeII/Ly$\alpha$ and CIV/Ly$\alpha$ maps show a positive gradient with the distance to the QSO hinting at a non-homogeneous ionization parameter distribution., Comment: 17 pages, 13 figures and 2 tables; Accepted for publication in ApJ

Published
2019
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8. Analysis of the recording of Fibonacci lenses on photopolymers with 3-D diffusion model

Author

Bravo J. C., Sirvent-Verdú J. J., García-Vázquez J. C., Pérez-Bernabeu A., Colomina-Martínez J., Fernández R., Márquez A., and Gallego S.

Subjects
diffractive optical elements, photopolymers, diffractive lenses, diffusion model, spatial light modulator, 4f system, pva/aa, intraocular lenses, ophthalmology application, low-pass filtering, Applied optics. Photonics, TA1501-1820, Optics. Light, QC350-467
Abstract

In this work a three-dimensional diffusion model is used to model photopolymers as a recording media. This model allows us to predict the properties of the Diffractive Optical Elements (DOEs) once we recorded into the photopolymer. This model had never been tested with more complex elements, such as multifocal diffractive lenses, as presented in the following in this work. In addition, the model includes; the estimation of the refractive index modulation, the low-pass filtering effect due to the experimental optical setup, and the evolution of the transverse intensity distribution. In this way, the selection of the appropriate material characteristics depending on the intended DOE application is made possible. Specifically, an acrylamide-based PVA/AA photopolymer is simulated using the proposed model. Moreover, coverplating and index matching systems are considered together to avoid the effects of thickness variation. Furthermore, in order to compare their properties using the proposed model, we focus on Fibonacci lenses (FL), a type of bifocal lenses. This allows us to evaluate the dependence of the focii intensity on the polymerisation rate, the diffusivity parameter, low-pass filtering effect and the use of the index matching system for these lenses. This enables us to know the recording parameters in order to produce this type of multifocal diffractive lenses with higher quality and precision.

Published
2024
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9. Manufacturing reflection holographic couplers for see-through applications recorded in photopolymers without prisms: An experimental validation

Author

Sirvent-Verdú J.J., Bravo J.C., Colomina-Martínez J., Nájar G., Neipp C., Francés J., Gallego S., and Beléndez A.

Subjects
holography, photopolymers, see-through, holographic couplers, reflection holograms, Applied optics. Photonics, TA1501-1820, Optics. Light, QC350-467
Abstract

In the present work, the viability of a novel recording geometry to produce reflection holographic couplers is analyzed. Recalling the idea of previous works, photopolymers are used as the recording material because they have been proven to be well-suited for the intended see-through application: the capability to provide a virtual image without compromising the information about the surrounding environment. Moreover, holography fundamentals give us the proper background to examine the proposed design, where no prisms or microlenses arrays are used. Aiming to support the analysis, we provide experimental evidence that the produced reflection holographic gratings exhibit the correct properties to work as a coupler, where the sensitivity of the material and its properties are studied and examined.

Published
2024
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10. The paediatric cancer clinical research landscape in Spain: a 13-year multicentre experience of the new agents group of the Spanish Society of Paediatric Haematology and Oncology (SEHOP)

Author

Rubio-San-Simón, A., Hladun Alvaro , R., Juan Ribelles , A., Castañeda Heredia , A., Guerra-García, P., Verdú-Amorós, J., Andrés, M., Cañete, A., Rives, S., Pérez-Martínez, A., Mora, J., Patiño-García, A., Lassaleta, A., Llort, A., Ramírez, M., Mata, C., Gallego, S., Martín-Broto, J., Cruz, O., Morales La Madrid , A., Solano, P., Martínez Romera , I., Fernández‑Teijeiro, A., Bautista, F., and Moreno, L.

Published
2021
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14. Bond formation at the Ni/ZrO2 interface

Author

Beltrán Fínez, Juan Ignacio, Gallego, S., Cerdá, J., Moya, J.S., Muñoz, M.C., Beltrán Fínez, Juan Ignacio, Gallego, S., Cerdá, J., Moya, J.S., and Muñoz, M.C.

Abstract

We report on the formation of strong chemical bonds at the Ni(100)/cubic-ZrO2(100) polar interfaces. Ab initio density functional theory calculations demonstrate that both Zr/Ni and O/Ni junctions are energetically stable, and predict that two different interactions determine the interface adhesion. Our results reveal that O-Ni ionic bonds are formed by Ni electron donation, while the Zr-Ni bonds show a mixed character with ionic and electron hybridization contributions., Depto. de Física de Materiales, Fac. de Ciencias Físicas, TRUE, pub

Published
2024

15. Magnetism and half-metallicity at the O surfaces of ceramic oxides

Author

Gallego, S., Beltrán Fínez, Juan Ignacio, Cerdá, J., Muñoz, M.C., Gallego, S., Beltrán Fínez, Juan Ignacio, Cerdá, J., and Muñoz, M.C.

Abstract

Está depositada la versión preprint del artículo, The occurrence of spin polarization at ZrO2, Al2O3 and MgO surfaces is proved by means of ab initio calculations within the density functional theory. Large spin moments, as high as 1.56 mu(B), develop at O-ended polar terminations, transforming the non-magnetic insulator into a half-metal. The magnetic moments mainly reside in the surface oxygen atoms and their origin is related to the existence of 2p holes of well defined spin polarization at the valence band of the ionic oxide. The direct relation between magnetization and local loss of donor charge makes it possible to extend the magnetization mechanism beyond surface properties., Depto. de Física de Materiales, Fac. de Ciencias Físicas, TRUE, pub

Published
2024

17. Electronic structure and polaronic charge distributions of Fe vacancy clusters in Fe$_{1-x}$O

Author

Bernal-Villamil, I. and Gallego, S.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

We perform a detailed study of the electronic structure of Fe$_{1-x}$O at moderate values of $x$. Our results evidence that the Fe vacancies introduce significant local modifications of the structural, electronic and magnetic features, that serve to explain the origin of the measured dependencies of the physical properties on $x$. The final properties are determined by a complex interplay of the charge demand from O, the magnetic interactions, and the charge order at the Fe sublattice. Furthermore, polaronic distributions of charge resembling those at magnetite, Fe$_3$O$_4$, emerge for the most stable defect structures. This defines a unique scenario to understand the nature of the short-range correlations in Fe$_3$O$_4$, and unveils their intimate connection to the long-range charge order developed below the Verwey transition temperature., Comment: 11 pages, 13 figures

Published
2014
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18. Manufacturing reflection holographic couplers for see-through applications recorded in photopolymers without prisms: An experimental validation

Author

Sirvent-Verdú J.J., Bravo J.C., Colomina-Martínez J., Piñol-Galera C., Nájar G., Neipp C., Francés J., Gallego S., and Beléndez A.

Subjects
Physics, QC1-999
Abstract

In the present work, the viability of a novel recording geometry to produce reflection holographic couplers is analyzed. Recalling the idea of previous works, photopolymers are used as the recording material, as they are well-suited for the intended see-through application. Moreover, Kogelnik’s theory fundamentals give us the proper background to examine the proposed design, where no prisms or microlenses arrays are used. Aiming to support the analysis, we provide experimental evidence that the produced gratings exhibit the correct properties to work as a coupler.

Published
2023
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19. Analysis of the recording of Fibonacci lenses using photopolymers with 3-D diffusion model

Author

Bravo J. C., Sirvent J. J., García Vázquez J. C., Pérez Bernabeu A., Colomina Martínez J., Fernández R., Márquez A., and Gallego S.

Subjects
Physics, QC1-999
Abstract

In the present work, a 3-Dimensional diffusion model is proposed to predict the main properties of Diffractive Optical Elements (DOEs), recorded in photopolymers, including refractive index modulation and the evolution of the transverse intensity distribution. The model enables the selection of appropriate material characteristics based on the intended application of the DOE. Specifically, a PVA/AA photopolymer based on acrylamide is simulated using the proposed model, considering coverplating and index matching systems to mitigate the effects of thickness variation. In order to compare its properties using the suggested model, the simulation focuses on a Fibonacci Lens and the dependece of the intensity on the polymerization rate. Accordingly, axial intensity pattern is represented to prove the bifocal-behaviour of these diffractive lenses.

Published
2023
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22. Tuning surface metallicity and ferromagnetism by hydrogen adsorption at the polar ZnO(0001) surface

Author

Sanchez, N., Gallego, S., Cerdá, J., and Muñoz, M. C.

Subjects
Condensed Matter - Materials Science, Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

The adsorption of hydrogen on the polar Zn-ended ZnO(0001) surface has been investigated by density functional {\it ab-initio} calculations. An on top H(1x1) ordered overlayer with genuine H-Zn chemical bonds is shown to be energetically favorable. The H covered surface is metallic and spin-polarized, with a noticeable magnetic moment at the surface region. Lower hydrogen coverages lead to strengthening of the H-Zn bonds, corrugation of the surface layer and to an insulating surface. Our results explain experimental observations of hydrogen adsorption on this surface, and not only predict a metal-insulator transition, but primarily provide a method to reversible switch surface magnetism by varying the hydrogen density on the surface., Comment: 4 pages, 3 figures

Published
2009
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23. Friedel oscillations induced surface magnetic anisotropy

Author

Szilva, A., Gallego, S., Munoz, M. C., Gyorffy, B. L., Zarand, G., and Szunyogh, L.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Strongly Correlated Electrons
Abstract

We present detailed numerical studies of the magnetic anisotropy energy of a magnetic impurity near the surface of metallic hosts (Au and Cu), that we describe in terms of a realistic tight-binding surface Green's function technique. We study the case when spin-orbit coupling originates from the d-band of the host material and we also investigate the case of a strong local spin-orbit coupling on the impurity itself. The splitting of the impurity's spin-states is calculated to leading order in the exchange interaction between the impurity and the host atoms using a diagrammatic Green's function technique. The magnetic anisotropy constant is an oscillating function of the separation d from the surface: it asymptotically decays as 1/d2 and its oscillation period is determined by the extremal vectors of the host's Fermi Surface. Our results clearly show that the host-induced magnetic anisotropy energy is by several orders of magnitude smaller than the anisotropy induced by the local mechanism, which provides sufficiently large anisotropy values to explain the size dependence of the Kondo resistance observed experimentally., Comment: 11 pages, 7 figures, submitted to PRB

Published
2008
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24. Magnetic states at the Oxygen surfaces of ZnO and Co-doped ZnO

Author

Sanchez, N., Gallego, S., and Munoz, M. C.

Subjects
Condensed Matter - Materials Science, Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

First principles calculations of the O surfaces of Co-ZnO show that substitutional Co ions develop large magnetic moments which long-range coupling depends on their mutual distance. The local spin polarization induced at the O atoms is three times larger at the surface than in the bulk, and the surface stability is considerably reinforced by Co. Moreover, a robust ferromagnetic state is predicted at the Oxygen (0001) surface even in the absence of magnetic atoms. The occurrence of surface magnetic moments correlates with the number of {\it p}-holes in the valence band of the oxide, and the distribution of the magnetic charge is, even in the absence of spin-orbit interaction, highly anisotropic.

Published
2008
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27. Effect of spin-orbit interaction on a magnetic impurity in the vicinity of a surface

Author

Szunyogh, L., Zarand, G., Gallego, S., Munoz, M. C., and Gyorffy, B. L.

Subjects
Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

We propose a new mechanism for surface-induced magnetic anisotropy to explain the thickness-dependence of the Kondo resistivity of thin films of dilute magnetic alloys. The surface anisotropy energy, generated by spin-orbit coupling on the magnetic impurity itself, is an oscillating function of the distance d from the surface and decays as 1/d^2. Numerical estimates based on simple models suggest that this mechanism, unlike its alternatives, gives rise to an effect of the desired order of magnitude., Comment: 4 pages, 4 figures

Published
2005
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28. Magnetism and half-metallicity at the O surfaces of ceramic oxides

Author

Gallego, S., Beltran, J. I., Cerda, J., and Munoz, M. C.

Subjects
Condensed Matter - Materials Science
Abstract

The occurence of spin-polarization at ZrO$_{2}$, Al$_{2}$O$_{3}$ and MgO surfaces is proved by means of \textit{ab-initio} calculations within the density functional theory. Large spin moments, as high as 1.56 $\mu_B$, develop at O-ended polar terminations, transforming the non-magnetic insulator into a half-metal. The magnetic moments mainly reside in the surface oxygen atoms and their origin is related to the existence of $2p$ holes of well-defined spin polarization at the valence band of the ionic oxide. The direct relation between magnetization and local loss of donor charge makes possible to extend the magnetization mechanism beyond surface properties.

Published
2005
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35. Quantitative diffusion-weighted MRI response assessment in rhabdomyosarcoma: an international retrospective study on behalf of the European paediatric Soft tissue sarcoma Study Group Imaging Committee.

Author

Ewijk, R. van, Chatziantoniou, C., Adams, M., Bertolini, P., Bisogno, G., Bouhamama, A., Caro-Dominguez, P., Charon, V., Coma, A., Dandis, R., Devalck, C., Donno, G. De, Ferrari, Andrea, Fiocco, M., Gallego, S., Giraudo, C., Glosli, H., Horst, S.A.J. Ter, Jenney, M., Klein, W.M., Leemans, A., Leseur, J., Mandeville, H.C., McHugh, K., Merks, J.H.M., Minard-Colin, V., Moalla, S., Morosi, C., Orbach, D., Ording Muller, L.S., Pace, E., Paolo, P.L. Di, Perruccio, K., Quaglietta, L., Renard, M., Rijn, R.R. van, Ruggiero, A., Sirvent, S.I., Luca, A. De, Schoot, R.A., Ewijk, R. van, Chatziantoniou, C., Adams, M., Bertolini, P., Bisogno, G., Bouhamama, A., Caro-Dominguez, P., Charon, V., Coma, A., Dandis, R., Devalck, C., Donno, G. De, Ferrari, Andrea, Fiocco, M., Gallego, S., Giraudo, C., Glosli, H., Horst, S.A.J. Ter, Jenney, M., Klein, W.M., Leemans, A., Leseur, J., Mandeville, H.C., McHugh, K., Merks, J.H.M., Minard-Colin, V., Moalla, S., Morosi, C., Orbach, D., Ording Muller, L.S., Pace, E., Paolo, P.L. Di, Perruccio, K., Quaglietta, L., Renard, M., Rijn, R.R. van, Ruggiero, A., Sirvent, S.I., Luca, A. De, and Schoot, R.A.

Abstract

Contains fulltext : 300161.pdf (Publisher’s version ) (Open Access), OBJECTIVE: To investigate the feasibility of diffusion-weighted magnetic resonance imaging (DW-MRI) as a predictive imaging marker after neoadjuvant chemotherapy in patients with rhabdomyosarcoma. MATERIAL AND METHODS: We performed a multicenter retrospective study including pediatric, adolescent and young adult patients with rhabdomyosarcoma, Intergroup Rhabdomyosarcoma Study group III/IV, treated according to the European paediatric Soft tissue sarcoma Study Group (EpSSG) RMS2005 or MTS2008 studies. DW-MRI was performed according to institutional protocols. We performed two-dimensional single-slice tumor delineation. Areas of necrosis or hemorrhage were delineated to be excluded in the primary analysis. Mean, median and 5th and 95th apparent diffusion coefficient (ADC) were extracted. RESULTS: Of 134 included patients, 82 had measurable tumor at diagnosis and response and DW-MRI scans of adequate quality and were included in the analysis. Technical heterogeneity in scan acquisition protocols and scanners was observed. Mean ADC at diagnosis was 1.1 (95% confidence interval [CI]: 1.1-1.2) (all ADC expressed in * 10(-3) mm(2)/s), versus 1.6 (1.5-1.6) at response assessment. The 5th percentile ADC was 0.8 (0.7-0.9) at diagnosis and 1.1 (1.0-1.2) at response. Absolute change in mean ADC after neoadjuvant chemotherapy was 0.4 (0.3-0.5). Exploratory analyses for association between ADC and clinical parameters showed a significant difference in mean ADC at diagnosis for alveolar versus embryonal histology. Landmark analysis at nine weeks after the date of diagnosis showed no significant association (hazard ratio 1.3 [0.6-3.2]) between the mean ADC change and event-free survival. CONCLUSION: A significant change in the 5th percentile and the mean ADC after chemotherapy was observed. Strong heterogeneity was identified in DW-MRI acquisition protocols between centers and in individual patients., 01 november 2023

Published
2023

36. Bond formation at the Ni/ZrO_(2) interface

Author

Beltrán Finez, Juan Ignacio, Gallego, S., Cerdá, J., Moya, J. S., Muñoz, M. C., Beltrán Finez, Juan Ignacio, Gallego, S., Cerdá, J., Moya, J. S., and Muñoz, M. C.

Abstract

© 2003 The American Physical Society. This work was partially financed by the Spanish DGICyT under Contracts Nos. BFM2000/1330, MAT2001-1596, and MAT2000-1354. S.G. acknowledges financial support from the I3P Program of the C.S.I.C., We report on the formation of strong chemical bonds at the Ni(100)/cubic-ZrO_(2)(100) polar interfaces. Ab initio density functional theory calculations demonstrate that both Zr/Ni and O/Ni junctions are energetically stable, and predict that two different interactions determine the interface adhesion. Our results reveal that O-Ni ionic bonds are formed by Ni electron donation, while the Zr-Ni bonds show a mixed character with ionic and electron hybridization contributions., Spanish DGICyT, I3P Program of the C.S.I.C., Depto. de Estructura de la Materia, Física Térmica y Electrónica, Fac. de Ciencias Físicas, TRUE, pub

Published
2023

37. Magnetism and half-metallicity at the O surfaces of ceramic oxides

Author

Gallego, S., Beltrán Finez, Juan Ignacio, Cerdá, J., Muñoz, M.C., Gallego, S., Beltrán Finez, Juan Ignacio, Cerdá, J., and Muñoz, M.C.

Abstract

© 2005 IOP Publishing Ltd. This work has been partially financed by the Spanish Ministerio de Educación y Ciencia and the DGICyT under contracts MAT2003-04278, MAT2004-05348 and CAM2004-0440, and by the Ramón y Cajal program. J.I. B. acknowledges financial support from the I3P program of the CSIC., The occurence of spin-polarization at ZrO_(2), Al_(2)O_(3) and MgO surfaces is proved by means of abinitio calculations within the density functional theory. Large spin moments, as high as 1.56 µB, develop at O-ended polar terminations, transforming the non-magnetic insulator into a half-metal. The magnetic moments mainly reside in the surface oxygen atoms and their origin is related to the existence of 2p holes of well-defined spin polarization at the valence band of the ionic oxide. The direct relation between magnetization and local loss of donor charge makes possible to extend the magnetization mechanism beyond surface properties., Spanish Ministerio de Educación y Ciencia, DGICyT, Ramón y Cajal program, I3P program of the CSIC, Depto. de Estructura de la Materia, Física Térmica y Electrónica, Fac. de Ciencias Físicas, TRUE, pub

Published
2023

38. Unexpected magnetism in low dimensional systems: the role of symmetry

Author

Muñoz, M. C., Chico, L., López-Sancho, M. P., Beltrán Finez, Juan Ignacio, Gallego, S., Cerdá, J., Muñoz, M. C., Chico, L., López-Sancho, M. P., Beltrán Finez, Juan Ignacio, Gallego, S., and Cerdá, J.

Abstract

© 2006 IOP Publishing Ltd. International School on Theoretical Physics (8. 2005. Myczkowce-Poland). This work has been partially financed by the Spanish Ministerio de Educación y Ciencia and the DGES under contracts MAT2002-04095-C02-01, MAT2002-04540-C05-03 and MAT2003-04278, and by the Comunidad Autónoma de Madrid under CAM2004-0440. S.G. acknowledges financial support from the Ramón y Cajal program of the Spanish Ministerio de Educación y Ciencia, and J.I.B. from the I3P program of the CSIC., The symmetry underlying the geometric structure of materials determines most of their physical properties. In low dimensional systems the role of symmetry is enhanced and can give rise to new phenomena. Here, we report on unexpected magnetism in carbon nanotubes and O-rich surfaces of ionic oxides, to show how its existence is closely related to the symmetry conditions. First, based on tight-binding models, we demonstrate that chiral carbon nanotubes present spin splitting at the Fermi level in the absence of a magnetic field, whereas achiral tubes preserve spin degeneracy. These remarkably different behaviors of chiral and non-chiral nanotubes are due to the intrinsic symmetry dependence of the spin-orbit interaction. Second, the occurence of spin-polarization at ZrO_(2), Al_(2)O_(3) and MgO surfaces is proved by means of abinitio calculations within the density functional theory. Large spin moments develop at O-ended polar terminations, transforming the non-magnetic insulator into a half-metal. The magnetic moments mainly reside in the surface oxygen atoms, and their origin is related to the existence of 2p holes of well-defined spin polarization at the valence band of the ionic oxide. The direct relation between magnetization and local loss of donor charge shows that at the origin of these phenomena is the reduced surface symmetry., Spanish Ministerio de Educación y Ciencia, DGES, Comunidad Autónoma de Madrid, Ramón y Cajal program of the Spanish Ministerio de Educación y Ciencia, I3P program of the CSIC, Depto. de Estructura de la Materia, Física Térmica y Electrónica, Fac. de Ciencias Físicas, TRUE, pub

Published
2023

39. Appareillage conventionnel

Author

Parietti-Winkler, C., primary, Micheyl, C., additional, Laurent, S., additional, Gallego, S., additional, Perrot, X., additional, Godey, B., additional, and Robier, M., additional

Published
2018
Full Text
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40. Acouphènes associés aux surdités

Author

Norena, A., primary, Londero, A., additional, Marx, M., additional, Truy, E., additional, Gallego, S., additional, Estève-Fraysse, M.-J., additional, and Ohresser, M., additional

Published
2018
Full Text
View/download PDF

47. High Energy Physics Opportunities Using Reactor Antineutrinos

Author

Awe, C., Barbeau, P. S., Haghighat, A., Huber, P., Li, S. C., Link, J. M., Mascolino, V., Subedi, T., Walkup, K., Aguilar-Arevalo, A., Bertou, X., Bonifazi, C., Cancelo, G., Cervantes-Vergara, B. A., Chavez, C., D Olivo, J. C., Egea, J. M., Dos Anjos, J. C., Estrada, J., Neto, A. R. F., Fernandez-Moroni, G., Foguel, A., Ford, R., Gasanego, J., Gollo, V., Izraelevitch, F., Kilminster, B., Lima, Jr H. P., Makler, M., Mendes, L. H., Molina, J., Mota, P., Nasteva, I., Paolini, E., Romero, C., Sarkis, Y., Haro, M. S., Soto, A., Stalder, D., Tiffenberg, J., Torres, C., Lindner, M., An, F. P., Balantekin, A. B., Band, H. R., Bishai, M., Blyth, S., Cao, G. F., Cao, J., Chang, J. F., Chang, Y., Chen, H. S., Chen, S. M., Chen, Y., Chen, Y. X., Cheng, J., Cheng, Z. K., Cherwinka, J. J., Chu, M. C., Cummings, J. P., Dalager, O., Deng, F. S., Ding, Y. Y., Diwan, M. V., Dohnal, T., Dove, J., Dvořák, M., Dwyer, D. A., Gallo, J. P., Gonchar, M., Gong, G. H., Gong, H., Gu, W. Q., Guo, J. Y., Guo, L., Guo, X. H., Guo, Y. H., Guo, Z., Hackenburg, R. W., Hans, S., He, M., Heeger, K. M., Heng, Y. K., Higuera, A., Hor, Y. K., Hsiung, Y. B., Hu, B. Z., Hu, J. R., Hu, T., Hu, Z. J., Huang, H. X., Huang, X. T., Jaffe, D. E., Jen, K. L., Ji, X. L., Ji, X. P., Johnson, R. A., Jones, D., Kang, L., Kettell, S. H., Kohn, S., Kramer, M., Langford, T. J., Lee, J., Lee, J. H. C., Lei, R. T., Leitner, R., Leung, J. K. C., Li, F., Li, H. L., Li, J. J., Li, Q. J., Li, S., Li, W. D., Li, X. N., Li, X. Q., Li, Y. F., Li, Z. B., Liang, H., Lin, C. J., Lin, G. L., Lin, S., Ling, J. J., Littenberg, L., Littlejohn, B. R., Liu, J. C., Liu, J. L., Lu, C., Lu, H. Q., Lu, J. S., Luk, K. B., Ma, X. B., Ma, X. Y., Ma, Y. Q., Mandujano, R. C., Marshall, C., Martinez Caicedo, D. A., Mcdonald, K. T., Mckeown, R. D., Meng, Y., Napolitano, J., Naumov, D., Naumova, E., Ochoa-Ricoux, J. P., Olshevskiy, A., Pan, H. -R, Park, J., Patton, S., Peng, J. C., Pun, C. S. J., Qi, F. Z., Qi, M., Qian, X., Raper, N., Ren, J., Reveco, C. Morales, Rosero, R., Roskovec, B., Ruan, X. C., Steiner, H., Sun, J. L., Tmej, T., Treskov, K., Tse, W. -H, Tull, C. E., Viren, B., Vorobel, V., Wang, C. H., Wang, J., Wang, M., Wang, N. Y., Wang, R. G., Wang, W., Wang, X., Wang, Y., Wang, Y. F., Wang, Z., Wang, Z. M., Wei, H. Y., Wei, L. H., Wen, L. J., Whisnant, K., White, C. G., Wong, H. L. H., Worcester, E., Wu, D. R., Wu, F. L., Wu, Q., Wenjie Wu, Xia, D. M., Xie, Z. Q., Xing, Z. Z., Xu, J. L., Xu, T., Xue, T., Yang, C. G., Yang, L., Yang, Y. Z., Yao, H. F., Ye, M., Yeh, M., Young, B. L., Yu, H. Z., Yu, Z. Y., Yue, B. B., Zeng, S., Zeng, Y., Zhan, L., Zhang, C., Zhang, F. Y., Zhang, H. H., Zhang, J. W., Zhang, Q. M., Zhang, X. T., Zhang, Y. M., Zhang, Y. X., Zhang, Y. Y., Zhang, Z. J., Zhang, Z. P., Zhang, Z. Y., Zhao, J., Zhou, L., Zhuang, H. L., Zou, J. H., Abusleme, A., Adam, T., Ahmad, S., Ahmed, R., Aiello, S., An, G. P., An, Q., Andronico, G., Anfimov, N., Antonelli, V., Antoshkina, T., Asavapibhop, B., André, J. P. A. M., Auguste, D., Babic, A., Baldini, W., Barresi, A., Baussan, E., Bellato, M., Bergnoli, A., Bernieri, E., Birkenfeld, T., Blin, S., Blum, D., Bolshakova, A., Bongrand, M., Bordereau, C., Breton, D., Brigatti, A., Brugnera, R., Bruno, R., Budano, A., Buesken, M., Buscemi, M., Busto, Jose, Butorov, I., Cabrera, A., Cai, H., Cai, X., Cai, Y. K., Cai, Z. Y., Cammi, A., Campeny, A., Cao, C. Y., Caruso, R., Cerna, C., Chakaberia, I., Chen, P. P., Chen, P. A., Chen, S., Chen, X., Chen, Y. W., Chen, Z., Cheng, Y., Chiesa, D., Chimenti, P., Chukanov, A., Chuvashova, A., Claverie, G., Clementi, C., Clerbaux, B., Di Lorenzo, S., Corti, D., Costa, S., Corso, F. D., La Taille, C., Deng, J., Deng, Z., Deng, Z. Y., Depnering, W., Diaz, M., Ding, X. F., Dirgantara, B., Dmitrievsky, S., Donchenko, G., Dong, J. M., Dornic, D., Doroshkevich, E., Dracos, M., Druillole, F., Du, S. X., Dusini, S., Dvorak, M., Enqvist, T., Enzmann, H., Fabbri, A., Fajt, L., Fan, D. H., Fan, L., Fang, C., Fang, J., Fang, W. X., Fargetta, M., Fatkina, A., Fedoseev, D., Fekete, V., Feng, L. C., Feng, Q. C., Formozov, A., Fournier, A., Gan, H. N., Gao, F., Garfagnini, A., Göttel, A., Genster, C., Giammarchi, M., Giaz, A., Giudice, N., Gong, G., Gorchakov, O., Gornushkin, Y., Grassi, M., Grewing, C., Gromov, V., Gu, M., Gu, X., Gu, Y., Guan, M. Y., Guardone, N., Gul, M., Guo, C., Guo, W. L., Hackspacher, P., Hagner, C., Han, R., Han, Y., Hassan, M., He, W., Heinz, T., Hellmuth, P., Herrera, R., Hong, D. J., Hou, S. J., Hsiung, Y., Hu, H., Hu, J., Hu, S. Y., Huang, C. H., Huang, G. H., Huang, Q. H., Huang, W. H., Huang, X., Huang, Y. B., Hui, J. Q., Huo, L., Huo, W., Huss, C., Hussain, S., Insolia, A., Ioannisian, A., Isocrate, R., Ji, X. Z., Jia, H. H., Jia, J. J., Jian, S. Y., Jiang, D., Jiang, X. S., Jin, R. Y., Jing, X. P., Jollet, C., Joutsenvaara, J., Jungthawan, S., Kalousis, L., Kampmann, P., Karagounis, M., Kazarian, N., Khan, A., Khan, W., Khosonthongkee, K., Kinz, P., Korablev, D., Kouzakov, K., Krasnoperov, A., Krumshteyn, Z., Kruth, A., Kutovskiy, N., Kuusiniemi, P., Lachenmaier, T., Landini, C., Leblanc, S., Lebrin, V., Lefevre, F., Lei, R., Leung, J., Li, C., Li, D., Li, H., Li, J., Li, K. J., Li, M. Z., Li, M., Li, N., Li, R. H., Li, S. F., Li, S. J., Li, T., Li, W. G., Li, X. M., Li, X. L., Li, Y., Li, Z., Li, Z. Y., Liang, J. J., Liebau, D., Limphirat, A., Limpijumnong, S., Lin, S. X., Lin, T., Lippi, I., Liu, F., Liu, H. D., Liu, H. B., Liu, H. J., Liu, H. T., Liu, H., Liu, M., Liu, Q., Liu, R. X., Liu, S. Y., Liu, S. B., Liu, S. L., Liu, X. W., Liu, X., Liu, Y., Lokhov, A., Lombardi, P., Lombardo, C., Loo, K., Lu, J. B., Lu, J. G., Lu, S. X., Lu, X. X., Lubsandorzhiev, B., Lubsandorzhiev, S., Ludhova, L., Luo, F. J., Luo, G., Luo, P. W., Luo, S., Luo, W. M., Lyashuk, V., Ma, Q. M., Ma, S., Maalmi, J., Malyshkin, Y., Mantovani, F., Manzali, F., Mao, X., Mao, Y. J., Mari, S. M., Marini, F., Marium, S., Martellini, C., Martin-Chassard, G., Martini, A., Mayilyan, D., Müller, A., Mednieks, I., Meregaglia, A., Meroni, E., Meyhöfer, D., Mezzetto, M., Miller, J., Miramonti, L., Monforte, S., Montini, P., Montuschi, M., Morozov, N., Muhammad, A., Muralidharan, P., Nastasi, M., Naumov, D. V., Nemchenok, I., Ning, F. P., Ning, Z., Nunokawa, H., Oberauer, L., Orestano, D., Ortica, F., Pan, H. R., Paoloni, A., Parkalian, N., Parmeggiano, S., Payupol, T., Pei, Y., Pelliccia, N., Peng, A., Peng, H., Perrot, F., Petitjean, P. A., Petrucci, F., Piñeres Rico, L. F., Pilarczyk, O., Popov, A., Poussot, P., Pratumwan, W., Previtali, E., Qi, F., Qian, S., Qian, X. H., Qiao, H., Qin, Z. H., Qiu, S. K., Rajput, M., Ranucci, G., Re, A., Rebber, H., Rebii, A., Ren, B., Rezinko, T., Ricci, B., Robens, M., Roche, M., Rodphai, N., Romani, A., Roth, C., Ruan, X., Rujirawat, S., Rybnikov, A., Sadovsky, A., Saggese, P., Salamanna, G., Sanfilippo, S., Sangka, A., Sanguansak, N., Sawangwit, U., Sawatzki, J., Sawy, F., Schever, M., Schuler, J., Schwab, C., Schweizer, K., Selivanov, D., Selyunin, A., Serafini, A., Settanta, G., Settimo, M., Shao, Z., Sharov, V., Shi, J., Shutov, V., Sidorenkov, A., Simkovic, F., Sirignano, C., Siripak, J., Sisti, M., Slupecki, M., Smirnov, M., Smirnov, O., Sogo-Bezerra, T., Songwadhana, J., Soonthornthum, B., Sotnikov, A., Sramek, O., Sreethawong, W., Stahl, A., Stanco, L., Stankevich, K., Stefanik, D., Steiger, H., Steinmann, J., Sterr, T., Stock, M. R., Strati, V., Studenikin, A., Sun, G. X., Sun, S. F., Sun, X. L., Sun, Y. J., Sun, Y. Z., Suwonjandee, N., Szelezniak, M., Tang, J., Tang, Q., Tang, X., Tietzsch, A., Tkachev, I., Triossi, A., Troni, G., Trzaska, W., Tuve, C., Ushakov, N., Waasen, S., Boom, J. Vanden, Vanroyen, G., Vassilopoulos, N., Vedin, V., Verde, G., Vialkov, M., Viaud, B., Volpe, C., Voronin, D., Votano, L., Walker, P., Wang, C., Wang, E., Wang, G., Wang, K. Y., Wang, L., Wang, M. F., Wang, S. G., Wang, W. S., Wang, X. Y., Wang, Y. G., Wang, Y. Q., Wang, Z. Y., Waqas, M., Watcharangkool, A., Wei, W., Wei, Y. D., Wiebusch, C., Wong, S. C. F., Wonsak, B., Wu, D., Wu, W. J., Wu, Z., Wurm, M., Wurtz, J., Wysotzki, C., Xi, Y. F., Xie, Y. G., Xu, B., Xu, C., Xu, D. L., Xu, F. R., Xu, H. K., Xu, J., Xu, M. H., Xu, Y., Yan, B. J., Yan, T., Yan, W. Q., Yan, X. B., Yan, Y. P., Yang, A. B., Yang, H., Yang, J., Yang, X. Y., Yang, Y., Yang, Y. F., Yasin, Z., Ye, J. X., Ye, Z. P., Yegin, U., Yermia, F., Yi, P. H., Yin, X. W., You, Z. Y., Yu, B. X., Yu, C. Y., Yu, C. X., Yu, M., Yu, X. H., Yuan, C. 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P., Bryan, C. D., Carr, R., Classen, T., Conant, A. J., Deichert, G., Dolinski, M. J., Erickson, A., Foust, B. T., Gaison, J. K., Galindo-Uribarri, A., Gilbert, C. E., Grant, C., Hackett, B. T., Hansell, A. B., Ji, X., Jones, D. C., Kyzylova, O., Lane, C. E., Larosa, J., Lu, X., Mendenhall, M. P., Meyer, A. M., Milincic, R., Mitchell, I., Mueller, P. E., Nave, C., Neilson, R., Nikkel, J. A., Norcini, D., Nour, S., Palomino, J. L., Pushin, D. A., Romero-Romero, E., Surukuchi, P. T., Tyra, M. A., Varner, R. L., Venegas-Vargas, D., Weatherly, P. B., White, C., Wilhelmi, J., Woolverton, A., Zhang, A., Zhang, X., Choi, J. H., Jang, H. I., Jang, J. S., Jeon, S. H., Joo, K. K., Ju, K., Jung, D. E., Kim, J. H., Kim, S. B., Kim, S. Y., Kim, W., Kwon, E., Lee, D. H., Lee, H. G., Lim, I. T., Moon, D. H., Pac, M. Y., Seo, H., Seo, J. W., Shin, C. D., Yang, B. S., Yoo, J., Yoon, S. G., Yeo, I. S., Chang, C., Bergé, L., Broniatowski, A., Dumoulin, L., Giuliani, A., Chapellier, M., Marcillac, P., Marnieros, S., Olivieri, E., Poda, D., Calvo, M., Goupy, J., Monfardini, A., Arnaud, Q., Augier, C., Billard, J., Cazes, A., Colas, J., Filippini, J., Gascon, J., Jesus, M., Lattaud, H., Juillard, A., Salagnac, T., Soldner, T., Lubashevskiy, A., Yakushev, E., Rozov, S., Lamblin, J., Mom, B., Stutz, A., Formaggio, J. A., Mayer, D. W., Johnston, J., Harrington, P., Heine, S., Sibille, V., Chen, R., Figueroa-Feliciano, E., Ziqing, H., Hertel, S., Patel, P., Pinckney, D., Serafin, A., Shilcusky, A., Decheine, N., Palladino, K., Weber, S., Hirjibehedin, C., Akindele, O. A., Carman, L., Dazeley, S., Ford, M., Jovanovic, I., Sutanto, F., Zaitseva, N., Beaumont, W., Binet, S., Bolognino, I., Borg, J., Buridon, V., Chanal, H., Coupé, B., Crochet, P., Cussans, D., Roeck, A., Durand, D., Fallot, M., Galbinski, D., Gallego, S., Giot, L., Guillon, B., Henaff, D., Hayashida, S., Hosseini, B., Kalcheva, S., Lehaut, G., Michiels, I., Monteil, S., Newbold, D., Roy, N., Ryckbosch, D., Sfar, H. Rejeb, Simard, L., Vacheret, A., Vandierendonck, G., Dyck, S., Remortel, N., Vercaemer, S., Verstraeten, M., Weber, A., Yeresko, M., Bonhomme, A., Buck, C., Del Amo Sanchez, P., El Atmani, I., Labit, L., Letourneau, A., Lhuillier, D., Licciardi, M., Materna, T., Pessard, H., Rogly, R., Savu, V., Schoppmann, S., Vialat, M., Algora, A., Beloeuvre, A., Estienne, M., Kean, R., Porta, A., Tain, J. L., Sidelnik, I., Anderson, T., Askins, M., Bagdasarian, Z., Baldoni, A., Barna, A., Benson, T., Bergevin, M., Bernstein, A., Birrittella, B., Bogetic, S., Boissevain, J., Borusinki, J., Boyd, S., Brooks, T., Budsworth, Mat, Burns, J., Calle, M., Camilo, C., Carroll, A., Coleman, J., Collins, R., Connor, C., Cowen, D., Crow, B., Curry, J., Dalnoki-Veress, F., Danielson, D., Diwan, M., Dixon, S., Drakopoulou, L., Duron, J., Dye, S., Fargher, S., Fienberg, A., Fischer, V., Foster, R., Frankiewicz, Kat, Gamble, T., Gooding, D., Gokhale, S., Gregorio, R., Gribble, J., Griskevich, J., Hadley, D., He, J., Healey, K., Hecla, J., Holt, G., Jabbari, C., Jewkes, K., Kaiser, R., Keenan, M., Keener, P., Kneale, Liz, Kudryavtsev, V., Kunkle, P., Litchfield, P., Liu, X. Ran, Lynch, G., Malek, M., Marr-Laundrie, P., Masic, B., Mauger, C., Mccauley, N., Metelko, C., Mills, R., Mitra, A., Muheim, F., Mullen, A., Murphy, A., Needham, M., Neights, E., Ogren, K., Orebi Gann, G., Oxborough, L., Paling, S., Papatyi, A., Paulos, B., Pershing, T., Pickard, L., Quillin, S., Resoro, R., Richards, B., Sabarots, L., Scarff, A., Schnellbach, Yan-Jie, Scovell, P., Seitz, B., Shea, O., Shebalin, V., Smith, G., Smy, M., Song, H., Spooner, N., Stanton, C., Stone, O., Svoboda, R., Szoldos, S., Thompson, L., Thomson, F., Toth, C., Vagins, M., Berg, Rick, Ventura, S., Walsh, B., Webster, J., Weiss, M., Westphal, D., Wetstein, M., Wilson, T., Wilson, S., Wolcott, S., Wright, M., Berryman, J. M., Collar, J. I., Erlandson, A., Gariazzo, S., Garzelli, M. V., Giunti, C., Goldblum, B. L., Hayes, A., Hedges, S., Mariani, C., Minic, D., Mougeot, X., Naim, D., Newby, J., Ni, K., O Donnell, T., Ozturk, S., Périssé, L., Pestes, R., Sonzogni, A. A., Tabrizi, Z., Vivier, M., Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Neutrino de Champagne Ardenne (LNCA - UMS 3263), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique subatomique et des technologies associées (SUBATECH), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Cryogénie (NEEL - Cryo), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Hélium : du fondamental aux applications (NEEL - HELFA), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Laboratoire de Physique de Clermont (LPC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA), Laboratoire de physique corpusculaire de Caen (LPCC), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut Laue-Langevin (ILL), Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Département de Physique Nucléaire (ex SPhN) (DPHN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, CHANDLER, CONNIE, CONUS, Daya Bay, JUNO, MTAS, NEOS, NuLat, PROSPECT, RENO, Ricochet, ROADSTR Near-Field Working Group, SoLid, Stereo, Valencia-Nantes TAGS, vIOLETA, WATCHMAN, and HEP, INSPIRE

Subjects
High Energy Physics - Experiment (hep-ex), [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], hep-ex, neutrino: energy spectrum, antineutrino: nuclear reactor, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, neutrino: oscillation, neutrino: nuclear reactor, Particle Physics - Experiment, neutrino: flux, High Energy Physics - Experiment
Abstract

Nuclear reactors are uniquely powerful, abundant, and flavor-pure sources of antineutrinos that continue to play a vital role in the US neutrino physics program. The US reactor antineutrino physics community is a diverse interest group encompassing many detection technologies and many particle physics topics, including Standard Model and short-baseline oscillations, BSM physics searches, and reactor flux and spectrum modeling. The community's aims offer strong complimentary with numerous aspects of the wider US neutrino program and have direct relevance to most of the topical sub-groups composing the Snowmass 2021 Neutrino Frontier. Reactor neutrino experiments also have a direct societal impact and have become a strong workforce and technology development pipeline for DOE National Laboratories and universities. This white paper, prepared as a submission to the Snowmass 2021 community organizing exercise, will survey the state of the reactor antineutrino physics field and summarize the ways in which current and future reactor antineutrino experiments can play a critical role in advancing the field of particle physics in the next decade., Contribution to Snowmass 2021

Published
2022

50. Quantum Diffusion Models Derived from the Entropy Principle

Author

Degond, P., Gallego, S., Méhats, F., Ringhofer, C., Bock, Hans-Georg, editor, de Hoog, Frank, editor, Friedman, Avner, editor, Gupta, Arvind, editor, Neunzert, Helmut, editor, Pulleyblank, William R., editor, Rusten, Torgeir, editor, Santosa, Fadil, editor, Tornberg, Anna-Karin, editor, Capasso, Vincenzo, editor, Mattheij, Robert, editor, Scherzer, Otmar, editor, Bonilla, Luis L., editor, Moscoso, Miguel, editor, Platero, Gloria, editor, and Vega, Jose M., editor

Published
2008
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