Results 91 to 100 of about 4,775 (143)

Topics on String Phenomenology [PDF]

, 2007
These lectures present some topics of string phenomenology and contain two parts. In the first part, I review the possibility of lowering the string scale in the TeV region, that provides a theoretical framework for solving the mass hierarchy problem and
Antoniadis, I.
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Particle Physics Implications of F-theory

, 2010
We review recent progress in realizing Grand Unified Theories (GUTs) in a strongly coupled formulation of type IIB string theory known as F-theory. Our main emphasis is on the expected low-energy phenomenology of a minimal class of F-theory GUTs.
Heckman, Jonathan J.
core   +1 more source

Catalytic creation of baby bubble universe with small positive cosmological constant

Journal of High Energy Physics, 2019
We investigate the decay of metastable de Sitter, Minkowski and anti-de Sitter vacua catalyzed by a black hole and a cloud of strings. We apply the method to the creation of the four dimensional bubble universe in the five dimensional anti-de Sitter ...
Issei Koga, Yutaka Ookouchi
doaj   +1 more source

Moduli stars

Journal of High Energy Physics, 2018
We explore the possibility that (Bose-Einstein) condensation of scalar fields from string compactifications can lead to long-lived compact objects. Depending on the type of scalar fields we find different realisations of star-like and solitonic objects ...
Sven Krippendorf, Francesco Muia, Fernando Quevedo   +2 more
doaj   +1 more source

Instanton induced Yukawa couplings from distant E3 and E(-1) instantons

, 2015
We calculate non-perturbative contributions to Yukawa couplings on D3-branes at orbifold singularities due to E3 and fractional E(-1) instantons which do not intersect the visible sector branes.
Goodsell, Mark D., Witkowski, Lukas T.
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Detection of early-universe gravitational-wave signatures and fundamental physics. [PDF]

Gen Relativ Gravit, 2022
Caldwell R, Cui Y, Guo HK, Mandic V, Mariotti A, No JM, Ramsey-Musolf MJ, Sakellariadou M, Sinha K, Wang LT, White G, Zhao Y, An H, Bian L, Caprini C, Clesse S, Cline JM, Cusin G, Fornal B, Jinno R, Laurent B, Levi N, Lyu KF, Martinez M, Miller AL, Redigolo D, Scarlata C, Sevrin A, Haghi BSE, Shu J, Siemens X, Steer DA, Sundrum R, Tamarit C, Weir DJ, Xie KP, Yang FW, Zhou S.   +37 more
europepmc   +1 more source

Cosmic Strings and Superstrings

, 2009
Cosmic strings are predicted by many field-theory models, and may have been formed at a symmetry-breaking transition early in the history of the universe, such as that associated with grand unification.
Abbott B., Alexander S. H. S., Avgoustidis A., Becker K., Brandenberger R., Burgess C., Copeland E. J., Davis A.-C., Dvali G., Eto M., Firouzjahi H., Fraisse A. A., Hindmarsh M. B., Jackson M. G., Jackson M. G., Jeanerrot R., Jones N., Kachru S., Kibble T. W. B., Kibble T. W. B., Klebanov I. R., Majumdar M., Pogosian L., Polchinski J., Polchinski J., Rajantie A., Ringeval C., Saffin P. M., Sakellariadou M., Sakellariadou M., Salmi P., Sen A., Stewart A., Thomas S., Urrestilla J., Vilenkin A.   +35 more
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Exploring non minimal Universal Extra Dimensional model at the LHC

Journal of High Energy Physics, 2018
We study the collider phenomenology of non minimal universal extra dimensional (nmUED) model in the context of the Large Hadron Collider at CERN. nmUED is an incarnation of the Standard Model in 4 + 1 space-time dimensions compactified on an S 1/Z 2 ...
Nabanita Ganguly, Anindya Datta
doaj   +1 more source

Towards new concepts for a biological neuroscience of consciousness. [PDF]

Cogn Neurodyn, 2021
Signorelli CM, Meling D.
europepmc   +1 more source

SUSY-breaking Soft Terms in a MSSM Magnetized D7-brane Model

, 2004
We compute the SUSY-breaking soft terms in a magnetized D7-brane model with MSSM-like spectrum, under the general assumption of non-vanishing auxiliary fields of the dilaton and Kahler moduli.
Font, A., Ibanez, L. E.
core   +1 more source