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1241“…This allows us to prove that EFT operators involving general scalar, vector, and tensor couplings to fermion bilinears only give rise to irrelevant anomalies, which can be removed by an appropriate choice of counterterms, thereby confirming the absence of new constraints from anomaly cancellation on the Standard Model EFT.…”
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1242“…The production of scalar and fermion DM pairs via fermion annihilation into the new vector boson is investigated near a resonance, where a SM signal from hard photon emission is considered as initial state radiation, namely a mono-photon production. …”
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1243“…We consider the supersymmetric version of a string-type SU(4)xSU(2)_LxSU(2)_R theory with U(1)_X family symmetry, which was shown to successfully describe the charged fermion masses and the quark mixing, and extend the earlier fermion mass analysis to the neutrino sector. …”
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1244“…Simulations of odd flavors QCD, however, can be also performed in the framework of the hybrid Monte Carlo algorithm where the inverse of the fermion matrix is approximated by a polynomial. In this exploratory study we perform three flavors QCD simulations. …”
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1245“…These fermion parity transitions therefore can be revealed by the current discontinuities or by a measure of the critical current at low temperatures.…”
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Online Artículo Texto -
1246por Chierici, R“…This contribution gives an overview of the most recent electroweak results concerning four-fermion physics at LEP2. (7 refs).…”
Publicado 2003
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1247“…Right handed neutrinos with mass of {\cal O} \; (10^{12}-10^{13}) GeV are required to implement the see-saw mechanism and generate neutrino masses capable of playing a role in structure formation. Moreover models of fermion masses often relate the Yukawa couplings involving these neutrinos to the up-quark Yukawa couplings. …”
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1248“…We show that a precise fit of the resulting fermion textures is consistent with CP being spontaneously broken in the flavour sector. …”
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1249por Burikham, P“…We consider the low-energy stringy corrections to the 4-fermion scattering at the linear $e^{+}e^{-}$ collider at the 500-GeV centre-of-mass energy. …”
Publicado 2005
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1250por Cossutti, F“…The present status of the measurement of the W boson mass and of the non abelian couplings in 4 fermion events at LEP2 is presented, with special attention at new results and still open problems.…”
Publicado 2003
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1251por Carrasco, N., Ciuchini, M., Dimopoulos, P., Frezzotti, R., Giménez, V., Herdoiza, G., Lubicz, V., Michael, C., Picca, E., Rossi, G.C., Sanfilippo, F., Shindler, A., Silvestrini, L., Simula, S., Tarantino, C.“…We used N_f = 2 twisted mass Wilson fermions at four values of the lattice spacing with pion masses ranging from 280 to 500 MeV. …”
Publicado 2013
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1252“…We discuss systematically the fermion mass and mixing matrices in a generic \linebreak field-theoretical flipped $SU(5)$ model, with particular applications to neutrino and baryon number-changing physics. …”
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1253por Alcaraz, J, Bajo-Vaquero, A, Bambade, P, 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, Grünewald, M W, Gurtu, A, Hansen, J B, Hawkings, R, Jézéquel, S, Jones, R W L, Kawamoto, T, Lançon, E, Liebig, W, Malgeri, L, Mele, S, Migliore, E, Minard, M N, Mönig, K, Parkes, C, Parzefall, U, Pietrzyk, B, Quast, G, Renton, P B, Riemann, S, Sachs, K, Strässner, A, Strom, D, Tenchini, R, Teubert, F, Thomson, M A, Todorova-Nová, 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 2005
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1254por McCarn, Allison“…The focus is on high mass Higgs searches, in fermion and boson decays, as well as di-Higgs.…”
Publicado 2016
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1255por Green, M B“…It is shown that the leading divergence of the single meson loop of the dual pion model is cancelled by a similar divergence of the fermion loop in the model with no ghosts. There is still one remaining divergence at the one-loop level. (6 refs).…”
Publicado 1973
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1256“…These are in general higher-dimensional F-terms in the low energy effective supergravity, or fermion masses after supersymmetry breaking. We discuss N=2 compactifications of type II strings, N=1 compactifications of heterotic and type I strings, as well as N=4 string vacua. …”
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1257“…Their validity is confirmed in two known cases of helicity amplitudes contributing to gg -> gg and gg -> gH, where the masses of the Higgs and the fermion circulating in the loop are kept as free parameters.…”
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1258“…We show that whereas the two lead to identical predictions in the fermion mass matrices, the second class generates a stronger suppression of FCNC effects. …”
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info:eu-repo/semantics/article -
1259“…Anomaly cancellation leads to the addition of fermions whose mass is inversely proportional to the known fermion masses. …”
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1260“…Fermion masses may arise via mixing of elementary fermions with composite fermions of a strong sector in scenarios of strongly-coupled electroweak symmetry breaking. …”
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