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5001“…We derive and solve the full set of scalar perturbation equations for a class of five-dimensional brane--world solutions, with a dilaton scalar field coupled to the bulk cosmological constant and to a 3-brane. The spectrum contains one localized massless scalar mode, to be interpreted as an effective dilaton on the brane, inducing long--range scalar interactions. …”
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5002“…It also offers a personal view of the history of the idea of self-similarity and of cosmological principles, from Plato's ideal architecture of the heavens to Mandelbrot's fractals in the modern physical cosmos. …”
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5003“…In addition to inflation, the resulting theory can explain simultaneously dark matter and the baryon asymmetry of the Universe; it is consistent with experiments on neutrino oscillations and with all astrophysical and cosmological constraints on sterile neutrino as a dark matter candidate. …”
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5004“…This signal is a relic stochastic background generated during the cosmological phase transition from an AdS-Schwarschild phase to the RS1 geometry that should occur at a temperature in the TeV range. …”
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5005por Giovannini, Massimo“…The constraints imposed by the duration of the inflationary phase and by the magnetogenesis requirements pin down the rate of variation of the susceptibilities that is consistent with the observations of the magnetic field strength over astrophysical and cosmological scales but avoids back-reaction problems. …”
Publicado 2013
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5006“…Inflationary models based on a single scalar field $\phi$ with a quadratic potential $V = \frac{1}{2} m^2 \phi^2$ are disfavoured by the recent Planck constraints on the scalar index, $n_s$, and the tensor-to-scalar ratio for cosmological density perturbations, $r_T$. In this paper we study how such a quadratic inflationary model can be rescued by postulating additional fields with quadratic potentials, such as might occur in sneutrino models, which might serve as either curvatons or supplementary inflatons. …”
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5007“…We consider here a string-inspired scenario, in which the CPTV is associated with a cosmological background with torsion provided by the Kalb-Ramond (KR) antisymemtric tensor field of the string gravitational multiplet. …”
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5008“…We analyse the prospects for constructing hybrid models of inflation that provide a dynamical realisation of the apparent closeness between the supersymmetric GUT scale and the possible scale of cosmological inflation. In the first place, we consider models based on the flipped SU(5)$\times$U(1) gauge group, which has no magnetic monopoles. …”
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5009“…Non vanishing corrections to the Higgs boson mass only appear at three-loop level and the model is natural for dark matter masses up to 15 TeV--a value larger than the one required by the cosmological relic density. The construction presented stands as an example of a general approach to naturalness that solves the little hierarchy problem which arises when new physics is added beyond the standard model at an energy scale around 10 TeV.…”
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5010“…The mixings yield interesting signatures which are observable and are within current cosmological limits but could be constrained further by future observations.…”
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5011“…We investigate the interplay between moduli dynamics and inflation, focusing on the KKLT-scenario and cosmological $\alpha$-attractors. General couplings between these sectors can induce a significant backreaction and potentially destroy the inflationary regime; however, we demonstrate that this generically does not happen for $\alpha$-attractors. …”
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5012“…Because the fermions are complex (cf the Quantum Hall Effect) rather than real (cf high-$T_c$ superconductors) the energetically-preferred vacuum is not parity or time-reversal invariant, and the associated renormalization group flow explains the cosmological arrow of time, as well as the decay of real or virtual black holes, with a monotonic increase in entropy.…”
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5013“…We show that such theories in general solve the cosmological domain wall problem, since the thermal production of the dangerous domain walls is enormously suppressed.…”
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5014“…As in the original NMSSM, the $\phi$NMSSM solves the $\mu$ problem of the MSSM via the VEV of a gauge singlet $N$, but unlike the NMSSM does not suffer from domain wall problems since the offending $Z_3$ symmetry is replaced by an approximate Peccei-Quinn symmetry which also solves the strong CP problem, and leads to an invisible axion with interesting cosmological consequences. The PQ symmetry may arise from a superstring model with an exact discrete $Z_3 \times Z_5$ symmetry after compactification. …”
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5015“…We derive and implement the CMB constraints on sneutrino properties, calculate reheating and the cosmological baryon asymmetry arising via leptogenesis from neutrino and sneutrino decays following sneutrino inflation. …”
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5016“…We analyze the (m_{1/2}, m_0) planes of such sub-GUT CMSSM models, noting the dependences of phenomenological, experimental and cosmological constraints on M_{in}. In particular, we find that the coannihilation, focus-point and rapid-annihilation funnel regions of the GUT-scale CMSSM approach and merge when M_{in} \sim 10^{12} GeV. …”
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5017
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5018por Ade, P A R, Aghanim, N, Armitage-Caplan, C, Arnaud, M, Ashdown, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Banday, A J, Barreiro, R B, Bartlett, J G, Battaner, E, Benabed, K, Benoît, A, Benoit-Lévy, A, Bernard, J -P, Bersanelli, M, Bielewicz, P, Bobin, J, Bock, J J, Bonaldi, A, Bonavera, L, Bond, J R, Borrill, J, Bouchet, F R, Boulanger, F, Bridges, M, Bucher, M, Burigana, C, Butler, R C, Cardoso, J -F, Catalano, A, Challinor, A, Chamballu, A, Chary, R -R, Chen, X, Chiang, L -Y, Chiang, H C, Christensen, P R, Church, S, Clements, D L, Colombi, S, Colombo, L P L, Couchot, F, Coulais, A, Crill, B P, Cruz, M, Curto, A, Cuttaia, F, Danese, L, Davies, R D, Davis, R J, de Bernardis, P, de Rosa, A, de Zotti, G, Delabrouille, J, Delouis, J -M, Désert, F -X, Dickinson, C, Diego, J M, Dole, H, Donzelli, S, Doré, O, Douspis, M, Dunkley, J, Dupac, X, Efstathiou, G, Enßlin, T A, Eriksen, H K, Falgarone, E, Finelli, F, Forni, O, Frailis, M, Fraisse, A A, Franceschi, E, Galeotta, S, Ganga, K, Giard, M, Giardino, G, Giraud-Héraud, Y, González-Nuevo, J, Górski, K M, Gratton, S, Gregorio, A, Gruppuso, A, Hansen, F K, Hanson, D, Harrison, D, Helou, G, Henrot-Versillé, S, Hernández-Monteagudo, C, Herranz, D, Hildebrandt, S R, Hivon, E, Hobson, M, Holmes, W A, Hornstrup, A, Hovest, W, Huey, G, Huffenberger, K M, Jaffe, T R, Jaffe, A H, Jewell, J, Jones, W C, Juvela, M, Keihänen, E, Keskitalo, R, Kisner, T S, Kneissl, R, Knoche, J, Knox, L, Kunz, M, Kurki-Suonio, H, Lagache, G, Lähteenmäki, A, Lamarre, J -M, Lasenby, A, Laureijs, R J, Lawrence, C R, Jeune, M Le, Leach, S, Leahy, J P, Leonardi, R, Lesgourgues, J, Liguori, M, Lilje, P B, Linden-Vørnle, M, López-Caniego, M, Lubin, P M, Macías-Pérez, J F, Maffei, B, Maino, D, Mandolesi, N, Marcos-Caballero, A, Maris, M, Marshall, D J, Martin, P G, Martínez-González, E, Masi, S, Matarrese, S, Matthai, F, Mazzotta, P, Meinhold, P R, Melchiorri, A, Mendes, L, Mennella, A, Migliaccio, M, Mikkelsen, K, Mitra, S, Miville-Deschênes, M -A, Moneti, A, Montier, L, Morgante, G, Mortlock, D, Moss, A, Munshi, D, Naselsky, P, Nati, F, Natoli, P, Netterfield, C B, Nørgaard-Nielsen, H U, Noviello, F, Novikov, D, Novikov, I, O'Dwyer, I J, Osborne, S, Oxborrow, C A, Paci, F, Pagano, L, Pajot, F, Paladini, R, Paoletti, D, Partridge, B, Pasian, F, Patanchon, G, Pearson, T J, Perdereau, O, Perotto, L, Perrotta, F, Pettorino, V, Piacentini, F, Piat, M, Pierpaoli, E, Pietrobon, D, Plaszczynski, S, Platania, P, Pointecouteau, E, Polenta, G, Ponthieu, N, Popa, L, Poutanen, T, Pratt, G W, Prézeau, G, Prunet, S, Puget, J -L, Rachen, J P, Reach, W T, Rebolo, R, Reinecke, M, Remazeilles, M, Renault, C, Renzi, A, Ricciardi, S, Riller, T, Ristorcelli, I, Rocha, G, Rosset, C, Roudier, G, Rowan-Robinson, M, Rubiño-Martín, J A, Rusholme, B, Salerno, E, Sandri, M, Santos, D, Savini, G, Schiavon, F, Scott, D, Seiffert, M D, Shellard, E P S, Spencer, L D, Starck, J -L, Stompor, R, Sudiwala, R, Sunyaev, R, Sureau, F, Sutton, D, Suur-Uski, A -S, Sygnet, J -F, Tauber, J A, Tavagnacco, D, Terenzi, L, Toffolatti, L, Tomasi, M, Tristram, M, Tucci, M, Tuovinen, J, Türler, M, Umana, G, Valenziano, L, Valiviita, J, Van Tent, B, Varis, J, Viel, M, Vielva, P, Villa, F, Vittorio, N, Wade, L A, Wandelt, B D, Wehus, I K, Wilkinson, A, Xia, J -Q, Yvon, D, Zacchei, A, Zonca, A“…The quality of our reconstructions is evaluated through detailed simulations and internal comparisons, and shown through various tests to be internally consistent and robust for CMB power spectrum and cosmological parameter estimation up to l = 2000. The parameter constraints on LambdaCDM cosmologies derived from these maps are consistent with those presented in the cross-spectrum based Planck likelihood analysis. …”
Publicado 2013
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5019por Ade, P.A.R., Aghanim, N., Arnaud, M., Ashdown, M., Aumont, J., Baccigalupi, C., Banday, A.J., Barreiro, R.B., Bartolo, N., Battaner, E., Battye, R., Benabed, K., Benoit, A., Benoit-Levy, A., Bernard, J.P., Bersanelli, M., Bielewicz, P., Bonaldi, A., Bonavera, L., Bond, J.R., Borrill, J., Bouchet, F.R., Bucher, M., Burigana, C., Butler, R.C., Calabrese, E., Cardoso, J.F., Catalano, A., Challinor, A., Chamballu, A., Chiang, H.C., Christensen, P.R., Church, S., Clements, D.L., Colombi, S., Colombo, L.P.L., Combet, C., Couchot, F., Coulais, A., Crill, B.P., Curto, A., Cuttaia, F., Danese, L., Davies, R.D., Davis, R.J., de Bernardis, P., de Rosa, A., de Zotti, G., Delabrouille, J., Desert, F.X., Diego, J.M., Dole, H., Donzelli, S., Dore, O., Douspis, M., Ducout, A., Dupac, X., Efstathiou, G., Elsner, F., Ensslin, T.A., Eriksen, H.K., Fergusson, J., Finelli, F., Forni, O., Frailis, M., Fraisse, A.A., Franceschi, E., Frejsel, A., Galeotta, S., Galli, S., Ganga, K., Giard, M., Giraud-Heraud, Y., Gjerlow, E., Gonzalez-Nuevo, J., Gorski, K.M., Gratton, S., Gregorio, A., Gruppuso, A., Gudmundsson, J.E., Hansen, F.K., Hanson, D., Harrison, D.L., Heavens, A., Helou, G., Henrot-Versille, S., Hernandez-Monteagudo, C., Herranz, D., Hildebrandt, S.R., Hivon, E., Hobson, M., Holmes, W.A., Hornstrup, A., Hovest, W., Huang, Z., Huffenberger, K.M., Hurier, G., Jaffe, A.H., Jaffe, T.R., Jones, W.C., Juvela, M., Keihanen, E., Keskitalo, R., Kisner, T.S., Knoche, J., Kunz, M., Kurki-Suonio, H., Lagache, G., Lahteenmaki, A., Lamarre, J.M., Lasenby, A., Lattanzi, M., Lawrence, C.R., Leonardi, R., Lesgourgues, J., Levrier, F., Lewis, A., Liguori, M., Lilje, P.B., Linden-Vornle, M., Lopez-Caniego, M., Lubin, P.M., Ma, Y.Z., Macias-Perez, J.F., Maggio, G., Maino, D., Mandolesi, N., Mangilli, A., Marchini, A., Martin, P.G., Martinelli, M., Martinez-Gonzalez, E., Masi, S., Matarrese, S., Mazzotta, P., McGehee, P., Meinhold, P.R., Melchiorri, A., Mendes, L., Mennella, A., Migliaccio, M., Mitra, S., Miville-Deschenes, M.A., Moneti, A., Montier, L., Morgante, G., Mortlock, D., Moss, A., Munshi, D., Murphy, J.A., Narimani, A., Naselsky, P., Nati, F., Natoli, P., Netterfield, C.B., Norgaard-Nielsen, H.U., Noviello, F., Novikov, D., Novikov, I., Oxborrow, C.A., Paci, F., Pagano, L., Pajot, F., Paoletti, D., Pasian, F., Patanchon, G., Pearson, T.J., Perdereau, O., Perotto, L., Perrotta, F., Pettorino, V., Piacentini, F., Piat, M., Pierpaoli, E., Pietrobon, D., Plaszczynski, S., Pointecouteau, E., Polenta, G., Popa, L., Pratt, G.W., Prezeau, G., Prunet, S., Puget, J.L., Rachen, J.P., Reach, W.T., Rebolo, R., Reinecke, M., Remazeilles, M., Renault, C., Renzi, A., Ristorcelli, I., Rocha, G., Rosset, C., Rossetti, M., Roudier, G., Rowan-Robinson, M., Rubino-Martin, J.A., Rusholme, B., Salvatelli, V., Sandri, M., Santos, D., Savelainen, M., Savini, G., Schaefer, B.M., Scott, D., Seiffert, M.D., Shellard, E.P.S., Spencer, L.D., Stolyarov, V., Stompor, R., Sudiwala, R., Sunyaev, R., Sutton, D., Suur-Uski, A.S., Sygnet, J.F., Tauber, J.A., Terenzi, L., Toffolatti, L., Tomasi, M., Tristram, M., Tucci, M., Tuovinen, J., Valenziano, L., Valiviita, J., Van Tent, B., Viel, M., Vielva, P., Villa, F., Wade, L.A., Wandelt, B.D., Wehus, I.K., White, M., Yvon, D., Zacchei, A., Zonca, A.“…We further show the impact of measurements of the cosmological perturbations, such as redshift-space distortions and weak gravitational lensing. …”
Publicado 2015
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5020por Carrasco-Martinez, Juanca, Dunsky, David I., Hall, Lawrence J., Harigaya, Keisuke“…We study the simplest theories with exact spacetime parity that solve the strong CP problem and successfully generate the cosmological baryon asymmetry via decays of right-handed neutrinos. …”
Publicado 2023
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