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Search for a neutral Higgs particle in the decay sequence KL0→π0H0 and H0→e+e−

1990; Elsevier BV; Volume: 235; Issue: 3-4 Linguagem: Inglês

10.1016/0370-2693(90)91979-l

ISSN

1873-2445

Autores

G. Barr, Peter Clarke, D. Coward, D. Cundy, N. Doble, L. Gatignon, V. Gibson, P. Grafström, R. Hagelberg, G. Kesseler, J. van der Lans, T. Miczaika, H. Nelson, H. Taureg, H. D. Wahl, C. Youngman, R. Black, D.J. Candlin, J. Muir, Ken Peach, B. Pijlgroms, I. P. J. Shipsey, W. A. Stephenson, H. Blümer, R. Heinz, M. Kasemann, K. Kleinknecht, Peter Mayer, B. Panzer, B. Renk, H. Rohrer, E. Augé, R.L. Chase, M. Corti, D. Fournier, Ph. Heusse, L. Iconomidou-Fayard, I. Harrus, A.-M. Lutz, H. G. Sander, A. C. Schaffer, L. Bertanza, A. Bigi, P. Calafiura, M. Calvetti, R. Carosi, R. Casali, C. Cerri, I. Mannelli, A. Nappi, G.M. Pierazzini, H. Bürkhardt, M. Holder, G. Quast, M. Rost, W. Weihs, G. Zech,

Tópico(s)

Black Holes and Theoretical Physics

Resumo

We have searched for the sequence of decays KL0→π0H0 and H0→e+e− at the CERN Super Proton Synchrotron (SPS), and have allowed for a non-zero H0 lifetime. Three candidates have been seen, consistent with an expected background of 3.3. Limits on the branching ratio product in the range 10−8–10−7 are presented as a function of the mass and lifetime of the H0. These can be used to restrict the neutral Higgs of the minimal standard model.

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