$CP$ Violation in Higgs-Gauge Interactions: From Tabletop Experiments to the LHC

Open Access

$C P$ Violation in Higgs-Gauge Interactions: From Tabletop Experiments to the LHC

Vincenzo Cirigliano, Andreas Crivellin, Wouter Dekens, Jordy de Vries, Martin Hoferichter, and Emanuele Mereghetti

Phys. Rev. Lett. 123, 051801 – Published 29 July 2019

Abstract

We investigate the interplay between the high- and low-energy phenomenology of $C P$ -violating interactions of the Higgs boson with gauge bosons. For this purpose, we use an effective field theory approach and consider all dimension-six operators arising in so-called universal theories. We compute their loop-induced contributions to electric dipole moments and the $C P$ asymmetry in $B \to X_{s} γ$ and compare the resulting current and prospective constraints to the projected sensitivity of the LHC. Low-energy measurements are shown to generally have a far stronger constraining power, which results in highly correlated allowed regions in coupling space—a distinctive pattern that could be probed at the high-luminosity LHC.

Received 28 March 2019

DOI:https://doi.org/10.1103/PhysRevLett.123.051801

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP³.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Effective field theory

Gauge bosons Higgs bosons

CP violation Electric moment

Particles & Fields

Authors & Affiliations

Vincenzo Cirigliano¹, Andreas Crivellin^2,3, Wouter Dekens⁴, Jordy de Vries^5,6, Martin Hoferichter ⁷, and Emanuele Mereghetti¹

¹Theoretical Division, Los Alamos National Laboratory (LANL), Los Alamos, New Mexico 87545, USA
²Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
³Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
⁴Department of Physics, University of California at San Diego, La Jolla, California 92093, USA
⁵Amherst Center for Fundamental Interactions, Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003, USA
⁶RIKEN BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973-5000, USA
⁷Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195-1550, USA

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Issue

Vol. 123, Iss. 5 — 2 August 2019

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