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1681por CMS Collaboration“…The results are interpreted in terms of scalar-, vector- and tensor-like CLFV four-fermion EFT interactions. Exclusion limits at $95\%$ confidence level on the branching fractions of a top quark decaying to an e$\mu$ pair and an up (a charm) quark are found to be $0.12\times 10^{-6}$ ($1.59\times 10^{-6}$), $0.24\times 10^{-6}$ ($2.55\times 10^{-6}$), $0.46\times 10^{-6}$ ($4.62\times 10^{-6}$) for the scalar, vector and tensor CLFV interaction types, respectively.…”
Publicado 2021
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1682por Alfonsi, Alice“…Those with vector bosons and third-generation fermions have now been observed and found to be compatible with the Standard Model. …”
Publicado 2022
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1683por Banks, Hannah Molly“…We will further show that hypothetical populations of dark sector exotic compact objects such as fermion and boson stars could generate signatures unique to mid- and low-frequency gravitational wave detectors, providing a novel means to probe complexity in the dark sector.…”
Publicado 2023
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1684por Renton, P B“…The data include measurements of the masses and widths of the W and Z bosons, as well as other data on Z-fermion couplings from measurements of cross sections, forward-backward asymmetries, $\tau$ polarisation and the left-right asymmetry $\ALR$. …”
Publicado 1996
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1685
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1686por Duchardt, Deborah“…It assigns a boson to every Standard Model fermion and vice versa, approximately doubling the number of particles. …”
Publicado 2017
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1687por Deigaard, Ingrid“…By introducing a new type of symmetry, supersymmetry, between leptons and bosons predicting a bosonic partner of each Standard Model fermion and vice versa, some of the shortcomings of the Standard Model can be fixed. …”
Publicado 2018
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1688por Das, Tanmoy“…However, sometimes the broken symmetries may blend with the invariant symmetries to lead to mysterious emergent phases. The heavy fermion metal URu(2)Si(2) is one such example, where the order parameter responsible for a second-order phase transition at T(h) = 17.5 K has remained a long-standing mystery. …”
Publicado 2012
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1689“…Here, we demonstrate a significant amount of ultrafast index modulation by optically exciting non-equilibrium Dirac fermions in the graphene layer integrated onto a high-index metamaterial. …”
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1690“…Majorana fermions are long-sought exotic particles that are their own antiparticles. …”
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1691“…More importantly, the presence of Majorana doublet in the DIII-class superconductor renders the current finite at the case of zero phase difference, with its sign determined by the fermion parity of such a junction. In addition, the dot-superconductor coupling plays a nontrivial role in adjusting the Josephson current. …”
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1692“…The analysis is carried out for a quantum spin-fermion model using the exact diagonalization, and the cluster mean-field approach. …”
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1693“…However, theoretical understanding of this suppression in terms of the magnetic susceptiblility of correlated itinerant fermion systems was so far lacking. Here we study the temperature and doping evolution of these quantities on the two-dimensional Hubbard model using cluster dynamical mean field theory. …”
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1694por Mintairov, Alexander, Lebedev, Dmitrii, Vlasov, Alexei, Bogdanov, Andrey, Ramezanpour, Shahab, Blundell, Steven“…Our observation explains the microscopic mechanism of vortex attachment in composite fermion theory of the fractional quantum Hall effect, allows its description in terms of self-localization of e(m)s and represents progress towards the goal of engineering anyon properties for fault-tolerant topological quantum gates.…”
Publicado 2021
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1695por Alcaraz, J., Azzurri, P., Bajo-Vaquero, A., Barberio, E., Blondel, A., Bourilkov, D., Checchia, P., Chierici, R., Clare, R., D'Hondt, J., de la Cruz, B., de Jong, P., Della Ricca, G., Dierckxsens, M., Duchesneau, D., Duckeck, G., Elsing, M., Grunewald, M.W., Gurtu, A., Hansen, J.B., Hawkings, R., Jezequel, St., Jones, R.W.L., Kawamoto, T., Lancon, E., Liebig, W., Malgeri, L., Mele, S., Minard, M.N., Monig, Klaus, Parkes, C., Parzefall, U., Pietrzyk, B., Quast, G., Renton, P., Riemann, S., Sachs, K., Straessner, A., Strom, David M., Tenchini, R., Teubert, F., Thomson, M.A., Todorova-Nova, S., Valassi, A., Venturi, A., Voss, H., Ward, C.P., Watson, N.K., Wells, P.S., Wynhoff, St.“…Averages are derived for di-fermion cross sections and forward-backward asymmetries, photon-pair, W-pair, Z-pair, single-W and single-Z cross sections, electroweak gauge boson couplings, W mass and width and W decay branching ratios. …”
Publicado 2006
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1696por Liu, Yanlin“…Observation of the Higgs decaying into fermion pairs is much harder due to larger background or smaller branching ratio (Br). …”
Publicado 2018
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1697por Abbaneo, D., Alcaraz, J., Antilogus, P., Bajo-Vaquero, A., Bambade, P., Barberio, E., Biglietti, M., Blondel, A., Blyth, S., Bourilkov, D., Casado, P., Charlton, David G., Checchia, P., Chierici, R., Clare, R., de la Cruz, B., Elsing, M., Garcia-Abia, Pablo, Grunewald, M.W., Gurtu, A., Hansen, J.B., Hansen, P., Hawkings, R., Holt, J., Jones, R.W.L., Kersevan, B., Kjaer, N., Lancon, E., Malgeri, L., Mariotti, C., Martinez, M., Matorras, F., Matteuzzi, C., Mele, S., Migliore, E., Minard, M.N., Monig, Klaus, Oh, A., Parkes, C., Parzefall, U., Paus, C., Pepe-Altarelli, M., Pietrzyk, B., Pooth, O., Quast, G., Renton, P., Rick, H., Riemann, S., Roney, J.M., Ruiz, H., Sachs, K., Spagnolo, S., Straessner, A., Strom, David M., Tenchini, R., Teubert, F., Tournefier, E., Valassi, A., Villa, S., Voss, H., Ward, C.P., Watson, N.K., Wells, P.S., de Groot, N., Rowson, P.C., Serbo, V., Su, D.“…Above the Z resonance, averages are derived for di-fermion cross sections and forward-backward asymmetries, W-pair, Z-pair and single-W production cross section, electroweak gauge boson couplings, W mass and width and W decay branching ratios. …”
Publicado 2001
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1698“…A natural, non-supersymmetric solution to the hierarchy problem generically requires fermionic partners of the top quark with masses not much heavier than 500 GeV. …”
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1699“…Such approximate flavour symmetries are phenomenologically attractive and may allow the fermion mass hierarchies to be connected to the electroweak hierarchy via the large volume. …”
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1700“…Dvoeglazov) 6. Radiative Charged Fermion Masses and Quark Mixing (VCKM)4x4 in a SU(3) Gauged Flavor Symmetry Model (A. …”
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