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Author |
Galli, P.; Ortin, T.; Perz, J.; Shahbazi, C.S. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Black-hole solutions of N=2, d=4 supergravity with a quantum correction, in the H-FGK formalism |
Type |
Journal Article |
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Year |
2013 |
Publication |
Journal of High Energy Physics |
Abbreviated Journal |
J. High Energy Phys. |
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Volume |
04 |
Issue |
4 |
Pages |
157 - 37pp |
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Keywords ![sorted by Keywords field, descending order (down)](img/sort_desc.gif) |
Black Holes in String Theory; Supersymmetry and Duality; Black Holes |
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Abstract |
We apply the H-FGK formalism to the study of some properties of a general class of black holes in N = 2 supergravity in four dimensions that correspond to the harmonic and hyperbolic ansatze and we obtain explicit extremal and non-extremal solutions for the t(3) model with and without a quantum correction. Not all solutions of the corrected model (quantum black holes), including in particular a solution with a single q(1) charge, have a regular classical limit. |
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Address |
[Galli, Pietro] Univ Valencia, Dept Fis Teor, E-46100 Burjassot, Valencia, Spain, Email: Pietro.Galli@ific.uv.es; |
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Springer |
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English |
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1029-8479 |
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Notes |
WOS:000321208800072 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
1541 |
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Permanent link to this record |
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Author |
Galli, P.; Goldstein, K.; Perz, J. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
On anharmonic stabilisation equations for black holes |
Type |
Journal Article |
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Year |
2013 |
Publication |
Journal of High Energy Physics |
Abbreviated Journal |
J. High Energy Phys. |
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Volume |
03 |
Issue |
3 |
Pages |
036 - 7pp |
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Keywords ![sorted by Keywords field, descending order (down)](img/sort_desc.gif) |
Black Holes in String Theory; Supergravity Models |
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Abstract |
We investigate the stabilisation equations for sufficiently general, yet regular, extremal (supersymmetric and non-supersymmetric) and non-extremal black holes in four-dimensional N = 2 supergravity using both the H-FGK approach and a generalisation of Denef's formalism. By an explicit calculation we demonstrate that the equations necessarily contain an anharmonic part, even in the static, spherically symmetric and asymptotically flat case. |
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Address |
Univ Valencia, Dept Fis Teor, E-46100 Burjassot, Valencia, Spain, Email: Pietro.Galli@ific.uv.es; |
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Springer |
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English |
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ISSN |
1029-8479 |
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Conference |
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Notes |
WOS:000317521200036 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
1417 |
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Permanent link to this record |
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Author |
Duarte, L.; Gonzalez-Sprinberg, G.A.; Vidal, J. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Top quark anomalous tensor couplings in the two-Higgs-doublet models |
Type |
Journal Article |
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Year |
2013 |
Publication |
Journal of High Energy Physics |
Abbreviated Journal |
J. High Energy Phys. |
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Volume |
11 |
Issue |
11 |
Pages |
114 - 21pp |
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Keywords ![sorted by Keywords field, descending order (down)](img/sort_desc.gif) |
Beyond Standard Model; Standard Model |
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Abstract |
We compute the one loop right and left anomalous tensor couplings (g(R) and g(L), respectively) for the top quark, in the aligned two-Higgs-doublet model. They are the magnetic-like couplings in the most general parameterization of the tbW vertex. We find that the aligned two-Higgs doublet model, that includes as particular cases some of the most studied extensions of the Higgs sector, introduces new electroweak contribution's and provides theoretical predictions that are very sensitive to both new scalar masses and the neutral scalar mixing angle. For a largo area in the parameters space we obtain significant deviations in both the real and the imaginary parts of the couplings gR and gL, compared to the predictions given by the electroweak sector of the Standard Model. The most important ones are those involving the imaginary part of the left coupling g(L) and the real part of the right coupling gR. The real part of g(L), and the imaginary part of gR also show an important sensitivity to new physics scenarios. The model can also account for new CP violation effects via the introduction of complex alignment parameters that have important consequences on the values for the imaginary parts of the couplings. The top anomalous tensor couplings will be measured at the LHC and at future colliders providing a complementary insight on new physics, independent from the bounds in top decays coming from B physics and b -> s gamma. |
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Address |
[Duarte, Lucia] Univ Republica, Fac Ingn, Inst Fis, Montevideo 11000, Uruguay, Email: lucia@fisica.edu.uy; |
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Springer |
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English |
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ISSN |
1029-8479 |
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Expedition |
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Conference |
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Notes |
WOS:000327092900014 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
1650 |
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Permanent link to this record |
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Author |
Bazzocchi, F.; Morisi, S.; Peinado, E.; Valle, J.W.F.; Vicente, A. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Bilinear R-parity violation with flavor symmetry |
Type |
Journal Article |
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Year |
2013 |
Publication |
Journal of High Energy Physics |
Abbreviated Journal |
J. High Energy Phys. |
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Volume |
01 |
Issue |
1 |
Pages |
033 - 16pp |
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Keywords ![sorted by Keywords field, descending order (down)](img/sort_desc.gif) |
Beyond Standard Model; Neutrino Physics; Supersymmetric Standard Model; Discrete and Finite Symmetries |
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Abstract |
Bilinear R-parity violation (BRPV) provides the simplest intrinsically supersymmetric neutrino mass generation scheme. While neutrino mixing parameters can be probed in high energy accelerators, they are unfortunately not predicted by the theory. Here we propose a model based on the discrete flavor symmetry Lambda(4) with a single R-parity violating parameter, leading to (i) correct Cabbibo mixing given by the Gatto-Sartori-Tonin formula, and a successful unification-like b-tau mass relation, and (ii) a correlation between the lepton mixing angles theta(13) and theta(23) in agreement with recent neutrino oscillation data, as well as a (nearly) massless neutrino, leading to absence of neutrinoless double beta decay. |
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Address |
[Bazzocchi, F.] Int Sch Adv Studies SISSA, Trieste, Italy, Email: fbazzo@sissa.it; |
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Publisher |
Springer |
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English |
Summary Language |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1126-6708 |
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Conference |
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Notes |
WOS:000315583200033 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
1367 |
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Permanent link to this record |
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Author |
Lavoura, L.; Morisi, S.; Valle, J.W.F. |
![goto web page (via DOI) doi](img/doi.gif)
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Title |
Accidental stability of dark matter |
Type |
Journal Article |
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Year |
2013 |
Publication |
Journal of High Energy Physics |
Abbreviated Journal |
J. High Energy Phys. |
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Volume |
02 |
Issue |
2 |
Pages |
118 - 17pp |
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Keywords ![sorted by Keywords field, descending order (down)](img/sort_desc.gif) |
Beyond Standard Model; Neutrino Physics; Discrete and Finite Symmetries |
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Abstract |
We propose that dark matter is stable as a consequence of an accidental Z(2) that results from a flavour symmetry group which is the double-cover group of the symmetry group of one of the regular geometric solids. Although model-dependent, the phenomenology resembles that of a generic “inert Higgs” dark matter scheme. |
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Address |
[Lavoura, L.] Univ Tecn Lisboa, CFTP, Inst Super Tecn, P-1049001 Lisbon, Portugal, Email: balio@cftp.ist.utl.pt; |
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Publisher |
Springer |
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English |
Summary Language |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1126-6708 |
ISBN |
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Expedition |
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Conference |
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Notes |
WOS:000316273700041 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
1383 |
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Permanent link to this record |