TY - JOUR

T1 - How to test for mass degenerate Higgs resonances

AU - Grossman, Yuval

AU - Surujon, Ze'Ev

AU - Zupan, Jure

PY - 2013

Y1 - 2013

N2 - The Higgs-like signal observed at the LHC could be due to several mass degenerate resonances. We show that the number of resonances is related to the rank of a "production and decay" matrix, R if . Each entry in this matrix contains the observed rate in a particular production mode i and final state f. In the case of N non-interfering resonances, the rank of R is, at most, N. If interference plays a role, the maximum rank is generically N 2, or with a universal phase, N(N + 1)/2. As an illustration we use the present experimental data to constrain the rank of the corresponding matrix. We estimate the LHC reach of probing two and three resonances under various speculations on future measurements and uncertainties.

AB - The Higgs-like signal observed at the LHC could be due to several mass degenerate resonances. We show that the number of resonances is related to the rank of a "production and decay" matrix, R if . Each entry in this matrix contains the observed rate in a particular production mode i and final state f. In the case of N non-interfering resonances, the rank of R is, at most, N. If interference plays a role, the maximum rank is generically N 2, or with a universal phase, N(N + 1)/2. As an illustration we use the present experimental data to constrain the rank of the corresponding matrix. We estimate the LHC reach of probing two and three resonances under various speculations on future measurements and uncertainties.

KW - Hadronic Colliders

KW - Phenomenological Models

UR - http://www.scopus.com/inward/record.url?scp=84876248600&partnerID=8YFLogxK

U2 - 10.1007/jhep03(2013)176

DO - 10.1007/jhep03(2013)176

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AN - SCOPUS:84876248600

SN - 1126-6708

VL - 2013

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 3

M1 - 176

ER -