Higgs physics confronts the $M_W$ anomaly - INSPIRE

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Higgs physics confronts the $M_W$ anomaly

Luca Di Luzio
(
- Padua U. and
- INFN, Padua
)
,
Ramona Gröber
(
- Padua U. and
- INFN, Padua
)
,
Paride Paradisi
(
- Padua U. and
- INFN, Padua
)

Apr 11, 2022

13 pages

Published in:

Phys.Lett.B 832 (2022) 137250

Published: Sep 10, 2022

e-Print:

2204.05284 [hep-ph]

DOI:

10.1016/j.physletb.2022.137250 (publication)

View in:

ADS Abstract Service

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Abstract: (Elsevier B.V.)

The recent high-precision measurement of the W mass by the CDF collaboration is in sharp tension with the Standard Model prediction as obtained by the electroweak fit. If confirmed, this finding can only be explained in terms of new physics effects. In this work, we point out a generic connection between the

M_{W}

anomaly and Higgs physics observables such as

h \to γ γ, Z γ

and the ratio

h \to Z Z / W W

. Moreover, we systematically classify new physics scenarios which can address the

M_{W}

anomaly via a tree-level contribution to the

\hat{T}

parameter. These include a real scalar triplet, a scalar quadruplet with the same hypercharge of the Higgs doublet, a

Z^{'}

boson, a vector triplet with unit hypercharge and a vector boson with the gauge quantum numbers of the Higgs doublet. These solutions to the

M_{W}

anomaly are characterized by new physics states which are typically too heavy to be discovered in direct searches, but which might leave their imprints in Higgs physics.

Note:

13 pages, 1 figure. Version to appear in Physics Letters B

CDF
W: mass
correction: oblique
effective field theory
effective operator
operator: dimension: 6
Higgs particle: decay
Higgs particle: doublet
triplet: scalar
scalar particle: new particle

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