Abstract
As an illustration of general principles, the W-boson loop contribution to the amplitude for the decay H → γγ is calculated within a specific model for the effective lagrangian describing the anomalous gauge boson couplings. Different approaches to the dependence of the result on the scale of new physics Λ are briefly discussed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
S. Weinberg: Phys. Rev. Lett. 19 (1967) 1264. A. Salam: in Elementary Particle Physics (Ed. N. Svartholm), Almqvist and Wiksells, Stockholm, 1968, p. 367. S.L. Glashow: Nucl. Phys. B 22 (1961) 579.
J. Wudka: Int. J. Mod. Phys. A 9 (1994) 2301.
S. Weinberg: Physica A 96 (1979) 327. H. Georgi: Weak Interactions and Modern Particle Theory, Benjamin/Cummings, Menlo Park, 1984. H. Georgi: Ann. Rev. Nucl. Part. Sci. 43 (1993) 209.
M.S. Chanowitz and M.K. Gaillard: Nucl. Phys. B 261 (1985) 379.
F. Feruglio: Int. J. Mod. Phys. A 8 (1993) 4937.
S. Weinberg: Physica A 96 (1979) 327. J. Gasser and H. Leutwyler: Ann. Phys. (N.Y.) 158 (1984) 142. J. Gasser and H. Leutwyler: Nucl. Phys. B 250 (1985) 465.
CDF Collaboration, F. Abe et al.: Phys. Rev. Lett.74 (1995) 1936; 75 (1995) 1018. DO Collaboration, S. Abachi et al.: Phys. Rev. Lett. 75 (1995) 1034; 75 (1995) 1024. H. Aihara et al.: FERMILAB-Pub-95/031.
G. Gounaris, J.-L. Kneur, and D. Zeppenfeld: in Physics at LEP2 (Eds. G. Altarelli, T. Sjostrand, F. Zwiner), Yellow report, CERN 96-01, 1996, p. 525.
C.P. Burgess and D. London: Phys. Rev. D 48 (1993) 4337. M. Chanowitz, M. Golden, and H. Georgi: Phys.Rev. D 36 (1987) 1490.
J. Ellis, M.K. Gaillard, and D.V. Nanopoulos: Nucl. Phys. B 106 (1976) 292. M. Spira, A. Djouadi, D. Graudenz, and P.M. Zerwas: Preprint CERN-TH/95-30 (1995). A.I. Vainshtein, M.B. Voloshin, V.I. Zakharov, and M.A. Shifman: Sov. J. Nucl. Phys. 30 (1979) 711.
H. Konig: Phys. Rev. D 45 (1992) 1545.
M.A. Perez and J.J. Toscano: Phys. Lett. B 289 (1992) 381; Phys. Rev. D 51 (1995) R2044.
J.M. Hernandez, M.A. Perez, and J.J. Toscano: Phys. Rev. D 51 (1995) R2044.
K. Hagiwara, R. Szalapski, and D. Zeppenfeld: Phys. Lett. B 318 (1993) 155.
H. Aronson: Phys. Rev 186 (1969) 1434.
J.A. Grifols, S. Peris, and J. Sola: Int. J. Mod. Phys. A 3 (1988) 225.
G.J. Gounaris and P.M. Renard: Z. Phys. C 59 (1993) 133.
C. Artz, M.B. Einhorn, and J. Wudka: Nucl. Phys. B 433 (1995) 41.
K. Hagiwara, S. Ishihara, R. Szalapski, and D. Zeppenfeld: Phys. Lett. B 238 (1992) 353; Phys. Rev. D 48 (1993) 2182.
A.C. Longhitano: Nucl. Phys. B 188(1981) 118.
R. Mertig: Guide to FeynCalc 1.0, Universitat Wurzburg (March 1992). R. Mertig, M. Bohm, and A. Denner: Comp. Phys. Commun. 64 (1991) 345.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Novotný, J., Stöhr, M. Anomalous couplings of vector bosons and the decay H → γγ: Dimensional regularization versus momentum cutoff. Czechoslovak Journal of Physics 49, 1471–1488 (1999). https://doi.org/10.1023/A:1021162029323
Issue Date:
DOI: https://doi.org/10.1023/A:1021162029323