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Titolo:
THRESHOLD EFFECTS IN 2-PHOTON DECAYS OF HIGGS PARTICLES
Autore:
MELNIKOV K; SPIRA M; YAKOVLEY O;
Indirizzi:
NOVOSIBIRSK STATE UNIV NOVOSIBIRSK 90 RUSSIA DESY,DIV THEORY D-22603 HAMBURG GERMANY BUDKER NUCL PHYS INST NOVOSIBIRSK 90 RUSSIA
Titolo Testata:
Zeitschrift fur Physik. C, Particles and fields
fascicolo: 3, volume: 64, anno: 1994,
pagine: 401 - 406
SICI:
0170-9739(1994)64:3<401:TEI2DO>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
QCD CORRECTIONS; HEAVY QUARKS; T(T)OVER-BAR PRODUCTION; MOMENTUM DISTRIBUTIONS; E+E-ANNIHILATION; BOSON PRODUCTION; LINEAR COLLIDER; CROSS-SECTION; BEHAVIOR; PHOTONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
36
Recensione:
Indirizzi per estratti:
Citazione:
K. Melnikov et al., "THRESHOLD EFFECTS IN 2-PHOTON DECAYS OF HIGGS PARTICLES", Zeitschrift fur Physik. C, Particles and fields, 64(3), 1994, pp. 401-406

Abstract

The couplings of Higgs particles to two photons are analyzed in the threshold region, where the Higgs mass is about twice the loop-particlemass leading to possible bound state formation. The amplitude of the pseudoscalar decay A --> yy for pseudoscalar masses in the range of (ttBAR)-bound state masses is calculated in leading and next-to-leading order in alpha(s). It is shown that the real and imaginary parts of the form factor are significantly different from the lowest order perturbative one.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 15:34:15