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Cline JM, Laurent B. Electroweak baryogenesis from light fermion sources: A critical study. Int J Clin Exp Med 2021. [DOI: 10.1103/physrevd.104.083507] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Carena M, Quirós M, Zhang Y. Electroweak Baryogenesis from Dark-Sector CP Violation. PHYSICAL REVIEW LETTERS 2019; 122:201802. [PMID: 31172767 DOI: 10.1103/physrevlett.122.201802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 04/09/2019] [Indexed: 06/09/2023]
Abstract
We present a novel mechanism of electroweak baryogenesis where CP violation occurs in a dark sector, comprised of standard model gauge singlets, thereby evading the strong electric dipole moment constraints. In this framework, the background of the timelike component of a new gauge boson Z_{μ}^{'}, generated at electroweak temperatures, drives the electroweak sphaleron processes to create the required baryon asymmetry. We first discuss the crucial ingredients for this mechanism to work, and then show that all of them can be elegantly embedded in ultraviolet completions with a spontaneously broken gauged lepton number. The models under consideration have a rich phenomenology and can be experimentally probed in leptophilic Z^{'} searches, dark matter searches, heavy Majorana neutrino searches, as well as through hunting for new Higgs portal scalars in multilepton channels at colliders.
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Affiliation(s)
- Marcela Carena
- Theoretical Physics Department, Fermilab, P.O. Box 500, Batavia, Illinois 60510, USA
- Enrico Fermi Institute, University of Chicago, Chicago, Illinois, 60637, USA
- Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois, 60637, USA
| | - Mariano Quirós
- Department of Physics, University of Notre Dame, 225 Nieuwland Hall, Notre Dame, Indiana 46556, USA
- Institut de Física d'Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), Campus UAB, 08193 Bellaterra (Barcelona) Spain
| | - Yue Zhang
- Theoretical Physics Department, Fermilab, P.O. Box 500, Batavia, Illinois 60510, USA
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA
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Aebischer J, Crivellin A, Greub C. One-loop SQCD corrections to the decay of top squarks to charm and neutralino in the generic MSSM. Int J Clin Exp Med 2015. [DOI: 10.1103/physrevd.91.035010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Shu J, Zhang Y. Impact of a CP-violating Higgs sector: from LHC to baryogenesis. PHYSICAL REVIEW LETTERS 2013; 111:091801. [PMID: 24033024 DOI: 10.1103/physrevlett.111.091801] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2013] [Revised: 07/04/2013] [Indexed: 06/02/2023]
Abstract
We observe a generic connection between LHC Higgs data and electroweak baryogenesis: the particle that contributes to the CP-odd hgg or hγγ vertex would provide the CP-violating source during a first-order phase transition. It is illustrated in the two Higgs doublet model that a common complex phase controls the lightest Higgs properties at the LHC, electric dipole moments, and the CP-violating source for electroweak baryogenesis. We perform a general parametrization of Higgs effective couplings and a global fit to the LHC Higgs data. Current LHC measurements prefer a nonzero phase for tanβ≲1 and electric dipole moment constraints still allow an order-one phase for tanβ∼1, which gives sufficient room to generate the correct cosmic baryon asymmetry. We also give some prospects in the direct measurements of CP violation in the Higgs sector at the LHC.
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Affiliation(s)
- Jing Shu
- State Key Laboratory of Theoretical Physics and Kavli Institute for Theoretical Physics China (KITPC), Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
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Liu T, Ramsey-Musolf MJ, Shu J. Electroweak beautygenesis: from b→s CP violation to the cosmic baryon asymmetry. PHYSICAL REVIEW LETTERS 2012; 108:221301. [PMID: 23003585 DOI: 10.1103/physrevlett.108.221301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2011] [Indexed: 06/01/2023]
Abstract
We address the possibility that CP violation in B(s)-B(s) mixing may help explain the origin of the cosmic baryon asymmetry. We propose a new baryogenesis mechanism--"electroweak beautygenesis"--explicitly showing that these two CP-violating phenomena can be sourced by a common CP phase. As an illustration, we work in the two-Higgs-doublet model. Because the relevant CP phase is flavor off diagonal, this mechanism is less severely constrained by null results of electric dipole moment searches than other scenarios. We show how measurements of flavor observables by the D0, CDF, and LHCb collaborations test this scenario.
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Affiliation(s)
- Tao Liu
- Department of Physics, University of California, Santa Barbara, California 93106, USA
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Savin DW, Brickhouse NS, Cowan JJ, Drake RP, Federman SR, Ferland GJ, Frank A, Gudipati MS, Haxton WC, Herbst E, Profumo S, Salama F, Ziurys LM, Zweibel EG. The impact of recent advances in laboratory astrophysics on our understanding of the cosmos. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2012; 75:036901. [PMID: 22790424 DOI: 10.1088/0034-4885/75/3/036901] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
An emerging theme in modern astrophysics is the connection between astronomical observations and the underlying physical phenomena that drive our cosmos. Both the mechanisms responsible for the observed astrophysical phenomena and the tools used to probe such phenomena-the radiation and particle spectra we observe-have their roots in atomic, molecular, condensed matter, plasma, nuclear and particle physics. Chemistry is implicitly included in both molecular and condensed matter physics. This connection is the theme of the present report, which provides a broad, though non-exhaustive, overview of progress in our understanding of the cosmos resulting from recent theoretical and experimental advances in what is commonly called laboratory astrophysics. This work, carried out by a diverse community of laboratory astrophysicists, is increasingly important as astrophysics transitions into an era of precise measurement and high fidelity modeling.
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Affiliation(s)
- D W Savin
- Columbia Astrophysics Laboratory, Columbia University, New York, NY 10027, USA
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Chung DJH, Garbrecht B, Ramsey-Musolf MJ, Tulin S. Yukawa interactions and supersymmetric electroweak baryogenesis. PHYSICAL REVIEW LETTERS 2009; 102:061301. [PMID: 19257576 DOI: 10.1103/physrevlett.102.061301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2008] [Indexed: 05/27/2023]
Abstract
We analyze the quantum transport equations for supersymmetric electroweak baryogenesis including previously neglected bottom and tau Yukawa interactions and show that they imply the presence of a previously unrecognized dependence of the cosmic baryon asymmetry on the spectrum of third generation quark and lepton superpartners. For fixed values of the CP-violating phases in the supersymmetric theory, the baryon asymmetry can vary in both magnitude and sign as a result of the squark and slepton mass dependence. For light, right-handed top and bottom quark superpartners, the baryon number creation can be driven primarily by interactions involving third generation leptons and their superpartners.
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Kikukawa Y, Kohda M, Yasuda J. First-order restoration ofSU(Nf)×SU(Nf)chiral symmetry with largeNfand an electroweak phase transition. Int J Clin Exp Med 2008. [DOI: 10.1103/physrevd.77.015014] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Brhlik M, Good GJ, Kane GL. Effects of largeCP-violating soft phases on supersymmetric electroweak baryogenesis. Int J Clin Exp Med 2000. [DOI: 10.1103/physrevd.63.035002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Cline JM, Kainulainen K. New source for electroweak baryogenesis in the minimal supersymmetric standard model. PHYSICAL REVIEW LETTERS 2000; 85:5519-5522. [PMID: 11136036 DOI: 10.1103/physrevlett.85.5519] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2000] [Revised: 11/30/2000] [Indexed: 05/23/2023]
Abstract
One of the most experimentally testable explanations for the origin of the baryon asymmetry of the Universe is that it was created during the electroweak phase transition, in the minimal supersymmetric standard model. Previous efforts have focused on the current for the difference of the two Higgsino fields, H1-H2, as the source of biasing sphalerons to create the baryon asymmetry. We point out that the current for the orthogonal linear combination, H1+H2, is larger by several orders of magnitude. Although this increases the efficiency of electroweak baryogenesis, we nevertheless find that large CP-violating angles > or = 0.15 are required to get a large enough baryon asymmetry.
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Affiliation(s)
- J M Cline
- Physics Department, McGill University, 3600 University Street, Montréal, Québec, Canada H3A 2T8
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Csikor F, Fodor Z, Hegedus P, Jakovac A, Katz SD, Piroth A. Electroweak phase transition in the minimal supersymmetric standard model: 4-dimensional lattice simulations. PHYSICAL REVIEW LETTERS 2000; 85:932-935. [PMID: 10991442 DOI: 10.1103/physrevlett.85.932] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2000] [Indexed: 05/23/2023]
Abstract
Lattice results show no standard model (SM) electroweak phase transition (EWPT) for Higgs masses approximately 72 GeV, which is below the present experimental limit. Perturbation theory and 3-dimensional simulations indicate an EWPT in the minimal supersymmetric SM (MSSM) that is strong enough for baryogenesis up to m(h) approximately 105 GeV. In this Letter we present the results of our large scale 4-dimensional MSSM EWPT simulations. We carried out infinite volume and continuum limits and found a transition whose strength agrees well with perturbation theory, allowing MSSM electroweak baryogenesis at least up to m(h) = 103+/-4 GeV. We determined the properties of the bubble wall.
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Affiliation(s)
- F Csikor
- Institute for Theoretical Physics, Eotvos University, H-1117, Pazmany P. 1A, Budapest, Hungary
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Riotto A. Towards a nonequilibrium quantum field theory approach to electroweak baryogenesis. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1996; 53:5834-5841. [PMID: 10019871 DOI: 10.1103/physrevd.53.5834] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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