Abstract
We present a complete calculation of the contributions to the effective leptonic weak mixing angle, sin{sup 2}{theta}{sub eff}{sup lept}, generated by closed fermion loops at the two-loop level of the electroweak interactions. This quantity is the source of the most stringent bound on the mass M{sub H} of the standard model Higgs boson. The size of the corrections with respect to known partial results varies between -4x10{sup -5} and -8x10{sup -5} for a realistic range of M{sub H} from 100 to 300 GeV. This translates into a shift of the predicted (from sin{sup 2}{theta}{sub eff}{sup lept} alone) central value of M{sub H} by +19 GeV, to be compared with the shift induced by a recent change in the measured top quark mass which amounts to +36 GeV.
Awramik, M;
[1]
Institute of Nuclear Physics PAS, Radzikowskiego 152, PL-31342 Cracow (Poland)];
Czakon, M;
[1]
Institute of Physics, University of Silesia, Uniwersytecka 4, PL-40007 Katowice (Poland)];
Freitas, A;
[2]
Weiglein, G
[3]
- DESY, Platanenallee 6, D-15738 Zeuthen (Germany)
- Theoretical Physics Division, Fermilab, P.O. Box 500, Batavia, Illinois 60510 (United States)
- Institute for Particle Physics Phenomenology, University of Durham, Durham DH1 3LE (United Kingdom)
Citation Formats
Awramik, M, Institute of Nuclear Physics PAS, Radzikowskiego 152, PL-31342 Cracow (Poland)], Czakon, M, Institute of Physics, University of Silesia, Uniwersytecka 4, PL-40007 Katowice (Poland)], Freitas, A, and Weiglein, G.
Complete two-loop electroweak fermionic corrections to the effective leptonic weak mixing angle sin{sup 2}{theta}{sub eff}{sup lept} and indirect determination of the Higgs Boson mass.
United States: N. p.,
2004.
Web.
doi:10.1103/PhysRevLett.93.201805.
Awramik, M, Institute of Nuclear Physics PAS, Radzikowskiego 152, PL-31342 Cracow (Poland)], Czakon, M, Institute of Physics, University of Silesia, Uniwersytecka 4, PL-40007 Katowice (Poland)], Freitas, A, & Weiglein, G.
Complete two-loop electroweak fermionic corrections to the effective leptonic weak mixing angle sin{sup 2}{theta}{sub eff}{sup lept} and indirect determination of the Higgs Boson mass.
United States.
https://doi.org/10.1103/PhysRevLett.93.201805
Awramik, M, Institute of Nuclear Physics PAS, Radzikowskiego 152, PL-31342 Cracow (Poland)], Czakon, M, Institute of Physics, University of Silesia, Uniwersytecka 4, PL-40007 Katowice (Poland)], Freitas, A, and Weiglein, G.
2004.
"Complete two-loop electroweak fermionic corrections to the effective leptonic weak mixing angle sin{sup 2}{theta}{sub eff}{sup lept} and indirect determination of the Higgs Boson mass."
United States.
https://doi.org/10.1103/PhysRevLett.93.201805.
@misc{etde_20619330,
title = {Complete two-loop electroweak fermionic corrections to the effective leptonic weak mixing angle sin{sup 2}{theta}{sub eff}{sup lept} and indirect determination of the Higgs Boson mass}
author = {Awramik, M, Institute of Nuclear Physics PAS, Radzikowskiego 152, PL-31342 Cracow (Poland)], Czakon, M, Institute of Physics, University of Silesia, Uniwersytecka 4, PL-40007 Katowice (Poland)], Freitas, A, and Weiglein, G}
abstractNote = {We present a complete calculation of the contributions to the effective leptonic weak mixing angle, sin{sup 2}{theta}{sub eff}{sup lept}, generated by closed fermion loops at the two-loop level of the electroweak interactions. This quantity is the source of the most stringent bound on the mass M{sub H} of the standard model Higgs boson. The size of the corrections with respect to known partial results varies between -4x10{sup -5} and -8x10{sup -5} for a realistic range of M{sub H} from 100 to 300 GeV. This translates into a shift of the predicted (from sin{sup 2}{theta}{sub eff}{sup lept} alone) central value of M{sub H} by +19 GeV, to be compared with the shift induced by a recent change in the measured top quark mass which amounts to +36 GeV.}
doi = {10.1103/PhysRevLett.93.201805}
journal = []
issue = {20}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Nov}
}
title = {Complete two-loop electroweak fermionic corrections to the effective leptonic weak mixing angle sin{sup 2}{theta}{sub eff}{sup lept} and indirect determination of the Higgs Boson mass}
author = {Awramik, M, Institute of Nuclear Physics PAS, Radzikowskiego 152, PL-31342 Cracow (Poland)], Czakon, M, Institute of Physics, University of Silesia, Uniwersytecka 4, PL-40007 Katowice (Poland)], Freitas, A, and Weiglein, G}
abstractNote = {We present a complete calculation of the contributions to the effective leptonic weak mixing angle, sin{sup 2}{theta}{sub eff}{sup lept}, generated by closed fermion loops at the two-loop level of the electroweak interactions. This quantity is the source of the most stringent bound on the mass M{sub H} of the standard model Higgs boson. The size of the corrections with respect to known partial results varies between -4x10{sup -5} and -8x10{sup -5} for a realistic range of M{sub H} from 100 to 300 GeV. This translates into a shift of the predicted (from sin{sup 2}{theta}{sub eff}{sup lept} alone) central value of M{sub H} by +19 GeV, to be compared with the shift induced by a recent change in the measured top quark mass which amounts to +36 GeV.}
doi = {10.1103/PhysRevLett.93.201805}
journal = []
issue = {20}
volume = {93}
journal type = {AC}
place = {United States}
year = {2004}
month = {Nov}
}