Search for Doubly Charged Higgs Boson Pair Production in p(p)over-bar Collisions at root s=1.96 TeV

Imagem de Miniatura




Abazov, V. M.
Abbott, B.
Acharya, B. S.
Adams, M.
Adams, T.
Alexeev, G. D.
Alkhazov, G.
Alton, A.
Alverson, G.
Alves, G. A.

Título da Revista

ISSN da Revista

Título de Volume


Amer Physical Soc


We present a search for pair production of doubly charged Higgs bosons in the processes q (q) over bar -> H++H-- decaying through H-+/-+/- ->tau(+/-)tau(+/-), mu(+/-)tau(+/-), mu(+/-)mu(+/-). The search is performed in p (p) over bar collisions at a center-of-mass energy of root s = 1:96 TeV using an integrated luminosity of up to 7:0 fb(-1) collected by the D0 experiment at the Fermilab Tevatron Collider. The results are used to set 95% C. L. limits on the pair production cross section of doubly charged Higgs bosons and on their mass for different H-+/-+/- branching fractions. Models predicting different H-+/-+/- decays are investigated. Assuming B(H-+/-+/- -> tau(+/-)tau(+/-)) = 1 yields an observed (expected) lower limit on the mass of a left- handed H-L(+/-+/-) boson of 128 (116) GeV and assuming B(H-+/-+/- -> mu(+/-)tau(+/-)) = 1 the corresponding limits are 144 (149) GeV. In a model with B(H-+/-+/- -> tau +/-tau(+/-) B(H-+/-+/- -> mu(+/-)tau(+/-)) = B(H-+/-+/- -> mu(+/-)mu(+/-) ) 1/3, we obtain M(H-L(+/-+/-)) > 130 (138) GeV.



Como citar

Physical Review Letters. College Pk: Amer Physical Soc, v. 108, n. 2, p. 8, 2012.