Zobrazeno 1 - 10
of 479
pro vyhledávání: '"Feruglio, F."'
Publikováno v:
JHEP 0911:036,2009
We study the interplay between flavor symmetries and leptogenesis in the case when the scale of flavor symmetry breaking is higher than the scale at which lepton number is violated. We show that when the heavy Majorana neutrinos belong to an irreduci
Externí odkaz:
http://arxiv.org/abs/0908.0161
Publikováno v:
JHEP 0905:020,2009
In view of the fact that the data on neutrino mixing are still compatible with a situation where Bimaximal mixing is valid in first approximation and it is then corrected by terms of order of the Cabibbo angle, arising from the diagonalization of the
Externí odkaz:
http://arxiv.org/abs/0903.1940
Autor:
Ambrosanio, S., Baer, H., Brignole, A., Castro, A., Chertok, M., Cheung, K., Clavelli, L., Cutts, D., Cvetic, M., Dooling, D., Dreiner, H., Dutta, B., Ellwanger, U., Everett, L., Feruglio, F., Giudice, G. F., Gunion, J. F., Hewett, J. L., Hugonie, C., Kang, K., Kang, S. K., Landsberg, G., Langacker, P., Mangano, M., McKay, D., Mohapatra, R. N., Mrenna, S., Muller, D. J., Rattazzi, R., Rizzo, T., Wang, J. W., Wells, J. D., Zwirner, F.
There are many low-energy models of supersymmetry breaking parameters which are motivated by theoretical and experimental considerations. Here, we discuss some of the lesser-known theories of low-energy supersymmetry, and outline their phenomenologic
Externí odkaz:
http://arxiv.org/abs/hep-ph/0006162
Publikováno v:
Nucl.Phys. B526 (1998) 136-152; Erratum-ibid. B582 (2000) 759-761
If the gravitino (G) is very light and all the other supersymmetric particles are above threshold, supersymmetry may still be found at colliders, by looking at processes with only gravitinos and ordinary particles in the final state. We compute here
Externí odkaz:
http://arxiv.org/abs/hep-ph/9801329
Publikováno v:
Nucl.Phys. B507 (1997) 51-90
We consider an extension of the standard electroweak theory with gauge group $SU(2)_L \times SU(2)_R \times U(1)_{\tilde{Y}}$, where the gauge bosons of the extra $SU(2)_R$ factor do not couple to ordinary fermions. We show that precision electroweak
Externí odkaz:
http://arxiv.org/abs/hep-ph/9705450
Autor:
Feruglio, F., Rigolin, S.
Publikováno v:
Phys.Lett. B397 (1997) 245-254
At very large energies and in $SU(2)_L\otimes U(1)_Y$ gauge theories, the trilinear gauge boson vertices relevant for $e^+e^- \to W^+W^-$ scattering are related in a simple way to the gauge boson self-energies. We derive these relations, both from th
Externí odkaz:
http://arxiv.org/abs/hep-ph/9611414
We review the main features of the leptophobic-Z' phenomenology, commenting on the prospects of these models after the recent experimental results on R_c, R_b and after the recent theoretical analyses of jet production at the Tevatron.
Comment:
Comment:
Externí odkaz:
http://arxiv.org/abs/hep-ph/9610469
Autor:
Culatti, A., Degrassi, G., Feruglio, F., Masiero, A., Rigolin, S., Silvestrini, L., Vicini, A.
We analyse the contribution of new heavy virtual fermions to the $e^+e^- \rightarrow W^+W^-$ cross section. We find that there exists a relevant interplay between trilinear and bilinear oblique corrections. The result strongly depends on the chiral o
Externí odkaz:
http://arxiv.org/abs/hep-ph/9605415
Publikováno v:
Phys.Rept.281:145-238,1997
The approximate symmetries of Quantum ChromoDynamics in the infinite heavy quark ($Q=c,b$) mass limit ($m_Q \to \infty$) and in the chiral limit for the light quarks ($m_q \to 0,\;q=\,u,\,d,\,s$) can be used together to build up an effective chiral l
Externí odkaz:
http://arxiv.org/abs/hep-ph/9605342
Autor:
Giudice, G. F., Mangano, M. L., Ridolfi, G., Rueckl, R., Ambrosanio, S., Asai, S., Azuelos, G., Baer, H., Bartl, A., Bernreuther, W., Besançon, M., Bhattacharyya, G., Brhlik, M., Bryant, L. M., Burkart, G., Carena, M., Casalbuoni, R., Chankowski, P., Choudhury, D., Culatti, A., Deandrea, A., deBoer, W., Carlino, G., De Curtis, S., Degrassi, G., Dionisi, C., Djouadi, A., Dominici, D., Dreiner, H., Eberl, H., Favart, L., Felcini, M., Feruglio, F., Fraas, H., Franke, F., Gatto, R., Giagu, S., Grazzini, M., Grivaz, J. F., Hernandez, J. J., Katsanevas, S., Komamiya, S., Kraml, S., LeCoultre, P., Lola, S., Majerotto, W., Masiero, A., Medcalf, T., Mele, B., Montagna, G., Munroe, R., Navas, S., Nessi-Tedaldi, F., Nicrosini, O., Orito, S., Piccinini, F., Pokorski, S., Porod, W., Rebecchi, P.
Review of prospects for discovery of new physics signals at LEP2. The areas covered include SUSY, exotic fermions, BESS models, leptoquarks, virtual effects and CP violating observables.
Externí odkaz:
http://arxiv.org/abs/hep-ph/9602207