Results 61 to 70 of about 7,925 (256)

Heavy neutralino relic abundance with Sommerfeld enhancements — a study of pMSSM scenarios [PDF]

, 2014
A bstractWe present a detailed discussion of Sommerfeld enhancements in neutralino dark matter relic abundance calculations for several popular benchmark scenarios in the general MSSM.
M. Beneke, M. Beneke, C. Hellmann, C. Hellmann, P. Ruiz-Femeńıa   +4 more
semanticscholar   +1 more source

Irreversible Thermodynamic Description of Dark Matter and Radiation Creation during Inflationary Reheating

Advances in High Energy Physics, Volume 2017, Issue 1, 2017., 2017
We investigate matter creation processes during the reheating period of the early Universe, by using the thermodynamic of open systems. The Universe is assumed to consist of the inflationary scalar field, which, through its decay, generates relativistic matter and pressureless dark matter. The inflationary scalar field transfers its energy to the newly
Juntong Su, Tiberiu Harko, Shi-Dong Liang, Orlando Luongo   +3 more
wiley   +1 more source

The NMSSM dark sector constraints

EPJ Web of Conferences, 2017
In this paper authors present review of neutralino research results in LHC, cosmological observations and theoretical models. Nowdays there are constraints on the mass of dark matter particle from experiments.
Gurskaya Albina V., Dolgopolov Mikhail V.   +1 more
doaj   +1 more source

One-loop corrections to neutralino-stop coannihilation revisited [PDF]

, 2014
We discuss the ${\cal O}(\alpha_s)$ supersymmetric QCD corrections to neutralino-stop coannihilation into a top quark and a gluon in the Minimal Supersymmetric Standard Model (MSSM).
J. Harz, B. Herrmann, M. Klasen, K. Kovářík   +3 more
semanticscholar   +1 more source

Aspects of Moduli Stabilization in Type IIB String Theory

Advances in High Energy Physics, Volume 2016, Issue 1, 2016., 2016
We review moduli stabilization in type IIB string theory compactification with fluxes. We focus on KKLT and Large Volume Scenario (LVS). We show that the predicted soft SUSY breaking terms in KKLT model are not phenomenological viable. In LVS, the following result for scalar mass, gaugino mass, and trilinear term is obtained: m0 = m1/2 = −A0 = m3/2 ...
Shaaban Khalil, Ahmad Moursy, Ali Nassar, Elias C. Vagenas   +3 more
wiley   +1 more source

Relic neutralino surface at a 100 TeV collider [PDF]

, 2014
We map the parameter space for minimal supersymmetric Standard Model neutralino dark matter which freezes out to the observed relic abundance, in the limit that all superpartners except the neutralinos and charginos are decoupled.
J. Bramante, P. Fox, Adam Martin, B. Ostdiek, T. Plehn, T. Schell, M. Takeuchi   +6 more
semanticscholar   +1 more source

MSSM Dark Matter in Light of Higgs and LUX Results

Advances in High Energy Physics, Volume 2016, Issue 1, 2016., 2016
The constraints imposed on the Minimal Supersymmetric Standard Model (MSSM) parameter space by the Large Hadron Collider (LHC) Higgs mass limit and gluino mass lower bound are revisited. We also analyze the thermal relic abundance of lightest neutralino, which is the Lightest Supersymmetric Particle (LSP).
W. Abdallah, S. Khalil, Enrico Lunghi
wiley   +1 more source

Search for neutralinos in Z decays [PDF]

Physics Letters B, 1995
Abstract We have searched for neutralinos produced via the reactions e + e − → χχ′ and e + e − → χ′χ′, where the next-to lightest neutralino, χ′, decays into the lightest neutralino, χ, and either a photon or a fermion pair. Based on 1.8 × 10 6 hadronic Z decays collected with the L3 detector at LEP, no signal has been observed.
Acciarri, M., Adam, A., Alviggi, M. G., Clare, I., Clare, R., Coan, T. E., Cohn, H. O., Coignet, G., Colino, N., Commichau, V., Costantini, S., Cotorobai, F., de la Cruz, B., Ambrosi, G., Cui, X. T., Cui, X. Y., Dai, T. S., D'Alessandro, R., de Asmundis, R., De Boeck, H., Degré, A., Deiters, K., Dénes, E., Denes, P., An, Q., DeNotaristefani, F., DiBitonto, D., Diemoz, M., Dionisi, C., Dittmar, M., Doria, A., Dorne, I., Dova, M. T., Drago, E., Duchesneau, D., Anderhub, H., Duhem, F., Duinker, P., Duran, I., Dutta, S., Easo, S., El Mamouni, H., Engler, A., Eppling, F. J., Erné, F. C., Ernenwein, J. P., Anderson, A. L., Extermann, P., Fabbretti, R., Fabre, M., Faccini, R., Falciano, S., Favara, A., Fay, J., Felcini, M., Ferguson, T., Fernandez, D., Andreev, V. P., Fernandez, G., Ferroni, F., Fesefeldt, H., Fiandrini, E., Field, J. H., Filthaut, F., Fisher, P. H., Forconi, G., Fredj, L., Freudenreich, K., Angelescu, T., Gailloud^, M., Galaktionov, Yu., Gallo, E., Ganguli, S. N., Garcia-Abia, P., Gau, S. S., Gentile, S., Gerald, J., Gheordanescu, N., Giagu, S., Antreasyan, D., Goldfarb, S., Goldstein, J., Gong, Z. F., Gonzalez, E., Gougas, A., Goujon, D., Gratta, G., Gruenewald, M. W., Gu, C., Guanziroli, M., Alkhazov, G., Gupta, V. K., Gurtu, A., Gustafson, H. R., Gutay, L. J., Hartmann, B., Hasan, A., He, J. T., Hebbeker, T., Hebert, M., Hervé, A., Arefiev, A., Hilgers, K., van Hoek, W. C., Hofer, H., Hoorani, H., Hou, S. R., Hu, G., Ille, B., Ilyas, M. M., Innocente, V., Janssen, H., Adriani, O., Azemoon, T., Jin, B. N., Jones, L. W., de Jong, P., Josa-Mutuberria, I., Kasser, A., Khan, R. A., Kamyshkov, Yu., Kapinos, P., Kapustinsky, J. S., Karyotakis, Y., Aziz, T., Kaur, M., Khokhar, S., Kienzle-Focacci, M. N., Kim, D., Kim, J. K., Kim, Y. G., Kim, Y. G., Kinnison, W. W., Kirkby, A., Kirkby, D., Baba, P. V. K. S., Kirkby, J., Kirsch, S., Kittel, W., Klimentov, A., König, A. C., Koffeman, E., Kornadt, O., Koutsenko, V., Koulbardis, A., Kraemer, R. W., Bagnaia, P., Kramer, T., Krenz, W., Kuijten, H., Kunin, A., Ladron de Guevara, P., Landi, G., Lanfranchi, M., Lanzano, S., Laurikainen, P., Lebeau, M., Bakken, J. A., Lebedev, A., Lebrun, P., Lecomte, P., Lecoq, P., Le Coultre, P., Lee, J. S., Lee, K. Y., Leedom, I., Leggett, C., Le Goff, J. M., baksay, L., Leiste, R., Lenti, M., Leonardi, E., Levtchenko, P., Li, C., Lieb, E., Lin, W. T., Linde, F. L., Lindemann, B., Lista, L., Ball, R. C., Liu, Y., Lohmann, W., Longo, E., Lu, W., Lu, Y. S., Lübelsmeyer, K., Luci, C., Luckey, D., Ludovici, L., Luminari, L., Banerjee, S., Lustermann, W., Ma, W. G., MacDermott, M., Maity, M., Malgeri, L., Malik, R., Malinin, A., Maña, C., Mangla, S., Metzger, W. J., Mnich, J., Bartalini, P., Baschirotto, A., Passaleva, G., Pieri, M., Produit, N., Rancoita, P. G., Raven, G., Read, K., Riles, K., Rodriguez, F. J., Roth, S., Sanchez, E., Behner, F., Sciacca, C., Ahlen, S., Servoli, L., Sopczak, A., Bertucci, B., Taylor, L., Tsaregorodtsev, A., Tully, C., Vogel, H., Wang, Y. F., Weber, A., van der Zwaan, B. C. C., Alpat, B., Bourilkov, D., Alcaraz, J., Brigljevic, V., Castellini, G., Castello, R., Cecchi, C., Alverson, G.   +234 more
openaire   +12 more sources

Neutralino and gravitino dark matter with low reheating temperature [PDF]

, 2014
A bstractWe examine a scenario in which the reheating temperature TR after inflation is so low that it is comparable to, or lower than, the freeze out temperature of ordinary WIMPs.
L. Roszkowski, S. Trojanowski, K. Turzyński   +2 more
semanticscholar   +1 more source

Phenomenological Hints from a Class of String Motivated Model Constructions

Advances in High Energy Physics, Volume 2015, Issue 1, 2015., 2015
We use string theory constructions towards the generalisation of the supersymmetric standard model of strong and electroweak interactions. Properties of the models depend crucially on the location of fields in extradimensional compact space. This allows us to extract some generic lessons for the phenomenological properties of the low energy effective ...
Hans Peter Nilles, Michal Malinský
wiley   +1 more source