Solving the Hierarchy Problem at Reheating with a Large Number of Degrees of Freedom

Arkani-Hamed, Nima; Cohen, Timothy; D’Agnolo, Raffaele Tito; Hook, Anson; Kim, Hyung Do; Pinner, David

doi:10.1103/physrevlett.117.251801

Title: Solving the Hierarchy Problem at Reheating with a Large Number of Degrees of Freedom

Abstract

We present a new solution to the electroweak hierarchy problem. Here we introduce $$N$$ copies of the standard model with varying values of the Higgs mass parameter. This generically yields a sector whose weak scale is parametrically removed from the cutoff by a factor of 1/$$\sqrt{N}$$. Ensuring that reheating deposits a majority of the total energy density into this lightest sector requires a modification of the standard cosmological history, providing a powerful probe of the mechanism. Current and near-future experiments can explore much of the natural parameter space. Furthermore, supersymmetric completions that preserve grand unification predict superpartners with mass below $$m_W \times M_{pl}/M_{GUT} \sim 10 TeV$$.

Authors:

Arkani-Hamed, Nima ^[1]; Cohen, Timothy ^[2]; D’Agnolo, Raffaele Tito ^[1]; Hook, Anson ^[3]; Kim, Hyung Do ^[4]; Pinner, David ^[5]

Institute for Advanced Study, Princeton, NJ (United States)
Univ. of Oregon, Eugene, OR (United States)
Stanford Univ., CA (United States)
Seoul National Univ. (Korea, Republic of)
Princeton Univ., NJ (United States)

Publication Date:: Thu Dec 15 00:00:00 EST 2016

Research Org.:: Stanford Univ., CA (United States); Institute for Advanced Study, Princeton, NJ (United States)

Sponsoring Org.:: USDOE Office of Science (SC); National Science Foundation (NSF); National Research Foundation of Korea (NRF)

OSTI Identifier:: 1536462

Alternate Identifier(s):: OSTI ID: 1336881

Grant/Contract Number:: SC0012012; SC0009988; PHY-096951; PHY-106629; 131669; 0426-2014000; 0409-2015011

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review Letters

Additional Journal Information:: Journal Volume: 117; Journal Issue: 25; Journal ID: ISSN 0031-9007

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; cosmology; extensions of Higgs sector; hierarchy problem; spontaneous symmetry breaking

Citation Formats


                    Arkani-Hamed, Nima, Cohen, Timothy, D’Agnolo, Raffaele Tito, Hook, Anson, Kim, Hyung Do, and Pinner, David. Solving the Hierarchy Problem at Reheating with a Large Number of Degrees of Freedom.  United States: N. p., 2016. 
Web.  doi:10.1103/physrevlett.117.251801.

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                    Arkani-Hamed, Nima, Cohen, Timothy, D’Agnolo, Raffaele Tito, Hook, Anson, Kim, Hyung Do, & Pinner, David. Solving the Hierarchy Problem at Reheating with a Large Number of Degrees of Freedom.  United States.  https://doi.org/10.1103/physrevlett.117.251801

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                    Arkani-Hamed, Nima, Cohen, Timothy, D’Agnolo, Raffaele Tito, Hook, Anson, Kim, Hyung Do, and Pinner, David. Thu .  
"Solving the Hierarchy Problem at Reheating with a Large Number of Degrees of Freedom".  United States.  https://doi.org/10.1103/physrevlett.117.251801.  https://www.osti.gov/servlets/purl/1536462.

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@article{osti_1536462,

  title        = {Solving the Hierarchy Problem at Reheating with a Large Number of Degrees of Freedom},

  author       = {Arkani-Hamed, Nima and Cohen, Timothy and D’Agnolo, Raffaele Tito and Hook, Anson and Kim, Hyung Do and Pinner, David},

  abstractNote = {We present a new solution to the electroweak hierarchy problem. Here we introduce $N$ copies of the standard model with varying values of the Higgs mass parameter. This generically yields a sector whose weak scale is parametrically removed from the cutoff by a factor of 1/$\sqrt{N}$. Ensuring that reheating deposits a majority of the total energy density into this lightest sector requires a modification of the standard cosmological history, providing a powerful probe of the mechanism. Current and near-future experiments can explore much of the natural parameter space. Furthermore, supersymmetric completions that preserve grand unification predict superpartners with mass below $m_W \times M_{pl}/M_{GUT} \sim 10 TeV$.},

  doi          = {10.1103/physrevlett.117.251801},

  journal      = {Physical Review Letters},

  number       = 25,

  volume       = 117,

  place        = {United States},

  year         = {Thu Dec 15 00:00:00 EST 2016},

  month        = {Thu Dec 15 00:00:00 EST 2016}

}

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Title: Solving the Hierarchy Problem at Reheating with a Large Number of Degrees of Freedom

Abstract

Citation Formats

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First Detection of the Acoustic Oscillation Phase Shift Expected from the Cosmic Neutrino Background
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Precision Measures of the Primordial Abundance of Deuterium
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