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Large density pertu...
Large density perturbations from reheating to standard model particles due to the dynamics of the Higgs boson during inflation
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- Litsa, Aliki (författare)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Stockholm Univ, Oskar Klein Ctr Cosmoparticle Phys, Dept Phys, AlbaNova, S-10691 Stockholm, Sweden.
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- Freese, Katherine (författare)
- Stockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Stockholm Univ, Oskar Klein Ctr Cosmoparticle Phys, Dept Phys, AlbaNova, S-10691 Stockholm, Sweden.;Univ Texas Austin, Dept Phys, Austin, TX 78722 USA.;Stockholm Univ, Roslagstullsbacken 23, S-10691 Stockholm, Sweden.,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Nordiska institutet för teoretisk fysik (Nordita),University of Texas, USA
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- Sfakianakis, Evangelos, I (författare)
- Barcelona Inst Sci & Technol BIST, Inst Fis Altes Energies IFAE, Campus UAB, Barcelona 08193, Spain.;Nikhef, Sci Pk 105, NL-1098 XG Amsterdam, Netherlands.;Leiden Univ, Inst Lorentz Theoret Phys, NL-2333 CA Leiden, Netherlands.
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- Stengel, Patrick (författare)
- Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC),Scuola Internazionale Superiore di Studi Avanzati (SISSA), Italy; INFN, Italy; Institute for Fundamental Physics of the Universe (IFPU), Italy,Stockholm Univ, Oskar Klein Ctr Cosmoparticle Phys, Dept Phys, AlbaNova, S-10691 Stockholm, Sweden.;Scuola Int Super Avanzati SISSA, Via Bonomea 265, I-34136 Trieste, Italy.;Ist Nazl Fis Nucl, Sez Trieste, Via Valerio 2, I-34127 Trieste, Italy.;Inst Fundamental Phys Universe IFPU, Via Beirut 2, I-34151 Trieste, Italy.
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- Visinelli, Luca (författare)
- Ist Nazl Fis Nucl, Lab Nazl Frascati, CP 13, I-100044 Frascati, Italy.;Shanghai Jiao Tong Univ, Tsung Dao Lee Inst TDLI, Shanghai 200240, Peoples R China.
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(creator_code:org_t)
- American Physical Society (APS), 2021
- 2021
- Engelska.
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Ingår i: Physical Review D. - : American Physical Society (APS). - 2470-0010 .- 2470-0029. ; 104:12
- Relaterad länk:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Cosmic microwave background observations are used to constrain reheating to standard model (SM) particles after a period of inflation. As a light spectator field, the SM Higgs boson acquires large field values from its quantum fluctuations during inflation, gives masses to SM particles that vary from one Hubble patch to another, and thereby produces large density fluctuations. We consider both perturbative and resonant decay of the inflaton to SM particles. For the case of perturbative decay from coherent oscillations of the inflaton after high scale inflation, we find strong upper bounds on the reheat temperature for the inflaton decay into heavy SM particles. The strongest bounds arise in the case of reheating to top quarks where we find Treh less than or similar to Oo1012 thorn GeV for an inflaton mass of 1013 GeV. For the case of resonant particle production (preheating) to (Higgsed) SM gauge bosons, we find temperature fluctuations larger than observed in the cosmic microwave background for a range of gauge coupling that includes those found in the SM and conclude that such preheating cannot be the main source of reheating the Universe after inflation.
Ämnesord
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
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