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Bloch IM, Shaham R, Hochberg Y, Kuflik E, Volansky T, Katz O. Constraints on axion-like dark matter from a SERF comagnetometer. Nat Commun 2023; 14:5784. [PMID: 37723175 PMCID: PMC10507093 DOI: 10.1038/s41467-023-41162-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 08/24/2023] [Indexed: 09/20/2023] Open
Abstract
Ultralight axion-like particles are well-motivated relics that might compose the cosmological dark matter and source anomalous time-dependent magnetic fields. We report on terrestrial bounds from the Noble And Alkali Spin Detectors for Ultralight Coherent darK matter (NASDUCK) collaboration on the coupling of axion-like particles to neutrons and protons. The detector uses nuclei of noble-gas and alkali-metal atoms and operates in the Spin-Exchange Relaxation-Free (SERF) regime, achieving high sensitivity to axion-like dark matter fields. Conducting a month-long search, we cover the mass range of 1.4 × 10-12 eV/c2 to 2 × 10-10 eV/c2 and provide limits which supersede robust astrophysical bounds, and improve upon previous terrestrial constraints by over two orders of magnitude for many masses within this range for protons, and up to two orders of magnitude for neutrons. These are the sole reliable terrestrial bounds reported on the coupling of protons with axion-like dark matter, covering an unexplored terrain in its parameter space.
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Affiliation(s)
- Itay M Bloch
- Berkeley Center for Theoretical Physics, University of California, Berkeley, CA, 94720, USA
- Theory Group, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Roy Shaham
- Rafael Ltd., 31021, Haifa, Israel
- Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Yonit Hochberg
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Eric Kuflik
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - Tomer Volansky
- Department of Physics, Tel Aviv University, Tel Aviv, Israel
| | - Or Katz
- Duke Quantum Center, Duke University, Durham, NC, 27701, USA.
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY, 14853, USA.
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2
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Frumkin R, Kuflik E, Lavie I, Silverwater T. Roadmap to Thermal Dark Matter beyond the Weakly Interacting Dark Matter Unitarity Bound. Phys Rev Lett 2023; 130:171001. [PMID: 37172246 DOI: 10.1103/physrevlett.130.171001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/30/2023] [Accepted: 03/31/2023] [Indexed: 05/14/2023]
Abstract
We study the general properties of the freeze-out of a thermal relic. We give analytic estimates of the relic abundance for an arbitrary freeze-out process, showing when instantaneous freeze-out is appropriate and how it can be corrected when freeze-out is slow. This is used to generalize the relationship between the dark matter mass and coupling that matches the observed abundance. The result encompasses well-studied particular examples, such as weakly interacting massive particles (WIMPs), strongly interacting massive particles, coannihilation, coscattering, inverse decays, and forbidden channels, and generalizes beyond them. In turn, this gives an approximate perturbative unitarity bound on the dark matter mass for an arbitrary thermal freeze-out process. We show that going beyond the maximal masses allowed for freeze-out via dark matter self-annihilations [WIMP-like, m_{DM}≫O(100 TeV)] predicts that there are nearly degenerate states with the dark matter and that the dark matter is generically metastable.
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Affiliation(s)
- Ronny Frumkin
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Eric Kuflik
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Itay Lavie
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Tal Silverwater
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
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3
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Frumkin R, Hochberg Y, Kuflik E, Murayama H. Thermal Dark Matter from Freeze-Out of Inverse Decays. Phys Rev Lett 2023; 130:121001. [PMID: 37027852 DOI: 10.1103/physrevlett.130.121001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 12/26/2022] [Accepted: 02/14/2023] [Indexed: 06/19/2023]
Abstract
We propose a new thermal dark matter candidate whose abundance is determined by the freeze-out of inverse decays. The relic abundance depends parametrically only on a decay width, while matching the observed value requires that the coupling determining the width-and the width itself-should be exponentially small. The dark matter is therefore very weakly coupled to the standard model, evading conventional searches. This inverse decay dark matter can be discovered by searching for the long-lived particle that decays into the dark matter at future planned experiments.
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Affiliation(s)
- Ronny Frumkin
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Yonit Hochberg
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Eric Kuflik
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Hitoshi Murayama
- Ernest Orlando Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA
- Department of Physics, University of California, Berkeley, California 94720, USA
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), University of Tokyo, Kashiwa 277-8583, Japan
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Hochberg Y, von Krosigk B, Kuflik E, Yu TC. Impact of Dark Compton Scattering on Direct Dark Matter Absorption Searches. Phys Rev Lett 2022; 128:191801. [PMID: 35622031 DOI: 10.1103/physrevlett.128.191801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 04/14/2022] [Indexed: 06/15/2023]
Abstract
Direct detection experiments are gaining in mass reach. Here we show that the inclusion of dark Compton scattering, which has typically been neglected in absorption searches, has a substantial impact on the reach and discovery potential of direct detection experiments at high bosonic cold dark matter masses. We demonstrate this for relic dark photons and axionlike particles: we improve expected reach across materials, and further use results from SuperCDMS, EDELWEISS, and GERDA to place enhanced limits on dark matter parameter space. We outline the implications for detector design and analysis.
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Affiliation(s)
- Yonit Hochberg
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Belina von Krosigk
- Institute for Astroparticle Physics (IAP), Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
- Institut für Experimentalphysik, Universität Hamburg, 22761 Hamburg, Germany
| | - Eric Kuflik
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - To Chin Yu
- Department of Physics, Stanford University, Stanford, California 94305, USA
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, USA
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Asadi P, Kramer ED, Kuflik E, Ridgway GW, Slatyer TR, Smirnov J. Accidentally Asymmetric Dark Matter. Phys Rev Lett 2021; 127:211101. [PMID: 34860089 DOI: 10.1103/physrevlett.127.211101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 08/30/2021] [Accepted: 10/15/2021] [Indexed: 06/13/2023]
Abstract
We study the effect of a first-order phase transition in a confining SU(N) dark sector with heavy dark quarks. The baryons of this sector are the dark matter candidates. During the confinement phase transition the heavy quarks are trapped inside isolated, contracting pockets of the deconfined phase, giving rise to a second stage of annihilation that dramatically suppresses the dark quark abundance. The surviving abundance is determined by the local accidental asymmetry in each pocket. The correct dark matter abundance is obtained for O(1-100) PeV dark quarks, above the usual unitarity bound.
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Affiliation(s)
- Pouya Asadi
- Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Eric David Kramer
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Eric Kuflik
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Gregory W Ridgway
- Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Tracy R Slatyer
- Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Juri Smirnov
- Center for Cosmology and AstroParticle Physics (CCAPP), The Ohio State University, Columbus, Ohio 43210, USA
- Department of Physics, The Ohio State University, Columbus, Ohio 43210, USA
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Kramer ED, Kuflik E, Levi N, Outmezguine NJ, Ruderman JT. Heavy Thermal Dark Matter from a New Collision Mechanism. Phys Rev Lett 2021; 126:081802. [PMID: 33709734 DOI: 10.1103/physrevlett.126.081802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 12/02/2020] [Accepted: 02/02/2021] [Indexed: 06/12/2023]
Abstract
We propose a new thermal freeze-out mechanism that results in dark matter masses exceeding the unitarity bound by many orders of magnitude, without violating perturbative unitarity or modifying the standard cosmology. The process determining the relic abundance is χζ^{†}→ζζ, where χ is the dark matter candidate. For m_{ζ}<m_{χ}<3m_{ζ}, χ is cosmologically long-lived and scatters against the exponentially more abundant ζ. Therefore, such a process allows for exponentially heavier dark matter for the same interaction strength as a particle undergoing ordinary 2→2 freeze-out, or equivalently, exponentially weaker interactions for the same mass. We demonstrate this mechanism in a leptophilic dark matter model, which allows for dark matter masses up to 10^{9} GeV.
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Affiliation(s)
- Eric David Kramer
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Eric Kuflik
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Noam Levi
- School of Physics and Astronomy, Tel-Aviv University, Tel-Aviv 69978, Israel
| | | | - Joshua T Ruderman
- Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, New York 10003, USA
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Abstract
We propose a mechanism of elementary thermal dark matter with a mass up to 10^{14} GeV, within a standard cosmological history, whose relic abundance is determined solely by its interactions with the standard model, without violating the perturbative unitarity bound. The dark matter consists of many nearly degenerate particles which scatter with the standard model bath in a nearest-neighbor chain, and maintain chemical equilibrium with the standard model bath by in-equilibrium decays and inverse decays. The phenomenology includes super heavy elementary dark matter and heavy relics that decay at various epochs in the cosmological history, with implications for the cosmic microwave background, structure formation, and cosmic ray experiments.
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Affiliation(s)
- Hyungjin Kim
- Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - Eric Kuflik
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
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Curtin D, Drewes M, McCullough M, Meade P, Mohapatra RN, Shelton J, Shuve B, Accomando E, Alpigiani C, Antusch S, Carlos Arteaga-Velázquez J, Batell B, Bauer M, Blinov N, Salomé Caballero-Mora K, Hyeok Chang J, Chun EJ, Co RT, Cohen T, Cox P, Craig N, Csáki C, Cui Y, D'Eramo F, Delle Rose L, Bhupal Dev PS, Dienes KR, Dror JA, Essig R, Evans JA, Evans JL, Fernández Tellez A, Fischer O, Flacke T, Fradette A, Frugiuele C, Fuchs E, Gherghetta T, Giudice GF, Gorbunov D, Gupta RS, Hagedorn C, Hall LJ, Harris P, Carlos Helo J, Hirsch M, Hochberg Y, Hook A, Ibarra A, Ipek S, Jung S, Knapen S, Kuflik E, Liu Z, Lombardo S, Lubatti HJ, McKeen D, Molinaro E, Moretti S, Nagata N, Neubert M, Miguel No J, Olaiya E, Perez G, Peskin ME, Pinner D, Pospelov M, Reece M, Robinson DJ, Rodríguez Cahuantzi M, Santonico R, Schlaffer M, Shepherd-Themistocleous CH, Spray A, Stolarski D, Subieta Vasquez MA, Sundrum R, Thamm A, Thomas B, Tsai Y, Tweedie B, West SM, Young C, Yu F, Zaldivar B, Zhang Y, Zurek K, Zurita J. Long-lived particles at the energy frontier: the MATHUSLA physics case. Rep Prog Phys 2019; 82:116201. [PMID: 31185458 DOI: 10.1088/1361-6633/ab28d6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We examine the theoretical motivations for long-lived particle (LLP) signals at the LHC in a comprehensive survey of standard model (SM) extensions. LLPs are a common prediction of a wide range of theories that address unsolved fundamental mysteries such as naturalness, dark matter, baryogenesis and neutrino masses, and represent a natural and generic possibility for physics beyond the SM (BSM). In most cases the LLP lifetime can be treated as a free parameter from the [Formula: see text]m scale up to the Big Bang Nucleosynthesis limit of [Formula: see text] m. Neutral LLPs with lifetimes above [Formula: see text]100 m are particularly difficult to probe, as the sensitivity of the LHC main detectors is limited by challenging backgrounds, triggers, and small acceptances. MATHUSLA is a proposal for a minimally instrumented, large-volume surface detector near ATLAS or CMS. It would search for neutral LLPs produced in HL-LHC collisions by reconstructing displaced vertices (DVs) in a low-background environment, extending the sensitivity of the main detectors by orders of magnitude in the long-lifetime regime. We study the LLP physics opportunities afforded by a MATHUSLA-like detector at the HL-LHC, assuming backgrounds can be rejected as expected. We develop a model-independent approach to describe the sensitivity of MATHUSLA to BSM LLP signals, and compare it to DV and missing energy searches at ATLAS or CMS. We then explore the BSM motivations for LLPs in considerable detail, presenting a large number of new sensitivity studies. While our discussion is especially oriented towards the long-lifetime regime at MATHUSLA, this survey underlines the importance of a varied LLP search program at the LHC in general. By synthesizing these results into a general discussion of the top-down and bottom-up motivations for LLP searches, it is our aim to demonstrate the exceptional strength and breadth of the physics case for the construction of the MATHUSLA detector.
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Affiliation(s)
- David Curtin
- Department of Physics, University of Toronto, Toronto, ON M5S 1A7, Canada
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Abstract
We present a new solution to the hierarchy problem, where the Higgs boson mass is at its observed electroweak value because such a patch inflates the most in the early Universe. If the Higgs boson mass depends on a field undergoing quantum fluctuations during inflation, then inflation will fill the Universe with the Higgs boson mass that corresponds to the largest vacuum energy. The hierarchy problem is solved if the maximum vacuum energy occurs for the observed Higgs boson mass. We demonstrate this notion with a proof-of-principle model containing an axion, a modulus field and the Higgs boson, and show that inflation can be responsible for the weak scale.
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Affiliation(s)
- Michael Geller
- Maryland Center for Fundamental Physics, Department of Physics, University of Maryland, College Park, Maryland 20742, USA
- Department of Physics, Tel Aviv University, Tel Aviv 69978, Israel
| | - Yonit Hochberg
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Eric Kuflik
- Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel
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Abstract
We propose a new mechanism for thermal dark matter freeze-out, called codecaying dark matter. Multicomponent dark sectors with degenerate particles and out-of-equilibrium decays can codecay to obtain the observed relic density. The dark matter density is exponentially depleted through the decay of nearly degenerate particles rather than from Boltzmann suppression. The relic abundance is set by the dark matter annihilation cross section, which is predicted to be boosted, and the decay rate of the dark sector particles. The mechanism is viable in a broad range of dark matter parameter space, with a robust prediction of an enhanced indirect detection signal. Finally, we present a simple model that realizes codecaying dark matter.
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Affiliation(s)
- Jeff Asaf Dror
- Laboratory for Elementary Particle Physics, Cornell University, Ithaca, New York 14850, USA
| | - Eric Kuflik
- Laboratory for Elementary Particle Physics, Cornell University, Ithaca, New York 14850, USA
| | - Wee Hao Ng
- Laboratory for Elementary Particle Physics, Cornell University, Ithaca, New York 14850, USA
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Abstract
We present a novel dark matter candidate, an elastically decoupling relic, which is a cold thermal relic whose present abundance is determined by the cross section of its elastic scattering on standard model particles. The dark matter candidate is predicted to have a mass ranging from a few to a few hundred MeV, and an elastic scattering cross section with electrons, photons and/or neutrinos in the 10^{-3}-1 fb range.
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Affiliation(s)
- Eric Kuflik
- Laboratory for Elementary Particle Physics, Cornell University, Ithaca, New York 14850, USA
| | - Maxim Perelstein
- Laboratory for Elementary Particle Physics, Cornell University, Ithaca, New York 14850, USA
| | - Nicolas Rey-Le Lorier
- Laboratory for Elementary Particle Physics, Cornell University, Ithaca, New York 14850, USA
| | - Yu-Dai Tsai
- Laboratory for Elementary Particle Physics, Cornell University, Ithaca, New York 14850, USA
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Hochberg Y, Kuflik E, Volansky T, Wacker JG. Mechanism for thermal relic dark matter of strongly interacting massive particles. Phys Rev Lett 2014; 113:171301. [PMID: 25379909 DOI: 10.1103/physrevlett.113.171301] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Indexed: 06/04/2023]
Abstract
We present a new paradigm for achieving thermal relic dark matter. The mechanism arises when a nearly secluded dark sector is thermalized with the standard model after reheating. The freeze-out process is a number-changing 3→2 annihilation of strongly interacting massive particles (SIMPs) in the dark sector, and points to sub-GeV dark matter. The couplings to the visible sector, necessary for maintaining thermal equilibrium with the standard model, imply measurable signals that will allow coverage of a significant part of the parameter space with future indirect- and direct-detection experiments and via direct production of dark matter at colliders. Moreover, 3→2 annihilations typically predict sizable 2→2 self-interactions which naturally address the "core versus cusp" and "too-big-to-fail" small-scale structure formation problems.
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Affiliation(s)
- Yonit Hochberg
- Ernest Orlando Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720, USA and Department of Physics, University of California, Berkeley, California 94720, USA
| | - Eric Kuflik
- Department of Physics, Tel Aviv University, Tel Aviv 69978, Israel
| | - Tomer Volansky
- Department of Physics, Tel Aviv University, Tel Aviv 69978, Israel
| | - Jay G Wacker
- SLAC National Accelerator Laboratory, Stanford University, Menlo Park, California 94025, USA
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Abstract
We present a new paradigm for supersymmetric theories with R-parity violation (RPV). At high scale, R parity is conserved in the visible sector but spontaneously broken in the supersymmetry-breaking sector. The breaking is then dynamically mediated to the visible sector and is manifested via nonrenormalizable operators at low energy. Consequently, RPV operators originate from the Kähler potential rather than the superpotential, and are naturally suppressed by the supersymmetry-breaking scale, explaining their small magnitudes. A new set of nonholomorphic RPV operators is identified and found to often dominate over the standard RPV ones. We study the relevant low-energy constraints arising from baryon-number violating processes, proton decay, and flavor changing neutral currents, which may all be satisfied if a solution to the standard model flavor puzzle is incorporated. The chiral structure of the RPV operators implies new and distinct collider signatures, indicating the need to alter current techniques in searching for RPV at the LHC.
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Affiliation(s)
- Csaba Csáki
- Department of Physics, LEPP, Cornell University, Ithaca, New York 14853, USA
| | - Eric Kuflik
- Raymond and Beverly Sackler School of Physics and Astronomy, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - Tomer Volansky
- Raymond and Beverly Sackler School of Physics and Astronomy, Tel-Aviv University, Tel-Aviv 69978, Israel
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Kuflik E, Nir Y, Volansky T. Implications of Higgs searches on the four-generation standard model. Phys Rev Lett 2013; 110:091801. [PMID: 23496703 DOI: 10.1103/physrevlett.110.091801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Revised: 11/25/2012] [Indexed: 06/01/2023]
Abstract
Within the four-generation standard model, the Higgs couplings to gluons and to photons deviate in a significant way from the predictions of the three-generation standard model. As a consequence, large departures in several Higgs production and decay channels are expected. Recent Higgs search results, presented by ATLAS, CMS, and CDF, hint on the existence of a Higgs boson with a mass around 125 GeV. Using these results and assuming such a Higgs boson, we derive exclusion limits on the four-generation standard model. For m(H)=125 GeV, the model is excluded above 99.95% confidence level. For 124.5 GeV≤m(H)≤127.5 GeV, an exclusion limit above 99% confidence level is found.
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Affiliation(s)
- Eric Kuflik
- Raymond and Beverly Sackler School of Physics and Astronomy, Tel-Aviv University, Tel-Aviv 69978, Israel.
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