2024-03-28T08:23:33Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/55362022-04-12T07:20:30Zcom_10261_49com_10261_4col_10261_175
DIGITAL.CSIC
author
Delgado Huertas, Antonio
author
Espinosa, José Ramón
author
No Redondo, José Miguel
author
Quirós, Mariano
2008-07-02T12:01:39Z
2008-07-02T12:01:39Z
2008-04-29
arXiv:0804.4574v1 [hep-ph]
http://hdl.handle.net/10261/5536
A renormalizable coupling between the Higgs and a scalar unparticle operator O_U of non-integer dimension d_U < 2 gives rise, after electroweak symmetry breaking, to a mass gap in the unparticle continuum and a shift in the original Higgs mass, which can end up above or below the mass gap. We show that, besides the displaced Higgs state, a new isolated state can generically appear in the spectrum near or below the mass gap. Such state (which we call phantom Higgs) is a mixture of Higgs and unparticles and therefore has universally reduced couplings to fermions and gauge bosons. This phenomenon could cause the mass of the lightest Higgs state accessible to colliders to be much smaller than the mass expected from the SM Lagrangian.
eng
openAccess
High Energy Physics - Phenomenology
Phantom Higgs from Unparticles
preprint
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URL
https://digital.csic.es/bitstream/10261/5536/1/0804.4574v1.pdf
File
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application/pdf
0804.4574v1.pdf
URL
https://digital.csic.es/bitstream/10261/5536/4/0804.4574v1.pdf.txt
File
MD5
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text/plain
0804.4574v1.pdf.txt