Measuring the inflaton coupling in the CMB

被引：13

作者：

Drewes, Marco ^{[1
]}

机构：

[1] Catholic Univ Louvain, Ctr Cosmol, Particle Phys & Phenomenol, B-1348 Louvain La Neuve, Belgium

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2022年 / 09期

关键词：

Inflation and CMBR theory; particle physics-cosmology connection; physics of the early universe; OSCILLATING SCALAR FIELDS; INFLATIONARY UNIVERSE; PARTICLE-PRODUCTION; QUANTUM-FIELDS; EQUILIBRIUM; FLUCTUATIONS; TEMPERATURE; DISSIPATION; FLATNESS; HORIZON;

D O I：

10.1088/1475-7516/2022/09/069

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the perspectives to extract information about the microphysical param-eters that governed the reheating process after cosmic inflation from CMB data. We identify conditions under which the inflaton coupling to other fields can be constrained for a given model of inflation without having to specify the details of the particle physics theory within which this model is realised. This is possible when the effective potential during reheating is approximately parabolic, and when the coupling constants are smaller than an upper bound that is determined by the ratios between the inflaton mass and the Planck mass or the scale of inflation. We consider scalar, Yukawa, and axion-like interactions and estimate that these conditions can be fulfilled if the inflaton coupling is comparable to the electron Yukawa coupling or smaller, and if the inflaton mass is larger than 105 GeV. Constraining the order of magnitude of the coupling constant requires measuring the scalar-to-tensor ratio at the level of 10-3, which is possible with future CMB observatories. Such a measurement would provide an important clue to understand how a given model of inflation may be embedded into a more fundamental theory of nature.

引用

页数：39

共 157 条

[1]

Aarts G, 2001, PHYS REV D, V64, DOI 10.1103/PhysRevD.64.105010

[2] CMB-S4: Forecasting Constraints on Primordial Gravitational Waves [J].

Abazajian, Kevork ;

Addison, Graeme E. ;

Adshead, Peter ;

Ahmed, Zeeshan ;

Akerib, Daniel ;

Ali, Aamir ;

Allen, Steven W. ;

Alonso, David ;

Alvarez, Marcelo ;

Amin, Mustafa A. ;

Anderson, Adam ;

Arnold, Kam S. ;

Ashton, Peter ;

Baccigalupi, Carlo ;

Bard, Debbie ;

Barkats, Denis ;

Barron, Darcy ;

Barry, Peter S. ;

Bartlett, James G. ;

Thakur, Ritoban Basu ;

Battaglia, Nicholas ;

Bean, Rachel ;

Bebek, Chris ;

Bender, Amy N. ;

Benson, Bradford A. ;

Bianchini, Federico ;

Bischoff, Colin A. ;

Bleem, Lindsey ;

Bock, James J. ;

Bocquet, Sebastian ;

Boddy, Kimberly K. ;

Bond, J. Richard ;

Borrill, Julian ;

Bouchet, Francois R. ;

Brinckmann, Thejs ;

Brown, Michael L. ;

Bryan, Sean ;

Buza, Victor ;

Byrum, Karen ;

Caimapo, Carlos Hervias ;

Calabrese, Erminia ;

Calafut, Victoria ;

Caldwell, Robert ;

Carlstrom, John E. ;

Carron, Julien ;

Cecil, Thomas ;

Challinor, Anthony ;

Chang, Clarence L. ;

Chinone, Yuji ;

Cho, Hsiao-Mei Sherry .

ASTROPHYSICAL JOURNAL, 2022, 926 (01)

[3] PARTICLE-PRODUCTION IN THE NEW INFLATIONARY COSMOLOGY [J].

ABBOTT, LF ;

FARHI, E ;

WISE, MB .

PHYSICS LETTERS B, 1982, 117 (1-2) :29-33

[4] Precision early universe thermodynamics made simple: Neff and neutrino decoupling in the Standard Model and beyond [J].

Abenza, Miguel Escudero .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2020, (05)

[5]

Achucarro A., ARXIV

[6] Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season [J].

Ade, P. A. R. ;

Ahmed, Z. ;

Amiri, M. ;

Barkats, D. ;

Thakur, R. Basu ;

Bischoff, C. A. ;

Beck, D. ;

Bock, J. J. ;

Boenish, H. ;

Bullock, E. ;

Buza, V ;

Cheshire, J. R. ;

Connors, J. ;

Cornelison, J. ;

Crumrine, M. ;

Cukierman, A. ;

Denison, E., V ;

Dierickx, M. ;

Duband, L. ;

Eiben, M. ;

Fatigoni, S. ;

Filippini, J. P. ;

Fliescher, S. ;

Goeckner-Wald, N. ;

Goldfinger, D. C. ;

Grayson, J. ;

Grimes, P. ;

Hall, G. ;

Halal, G. ;

Halpern, M. ;

Hand, E. ;

Harrison, S. ;

Henderson, S. ;

Hildebrandt, S. R. ;

Hilton, G. C. ;

Hubmayr, J. ;

Hui, H. ;

Irwin, K. D. ;

Kang, J. ;

Karkare, K. S. ;

Karpel, E. ;

Kefeli, S. ;

Kernasovskiy, S. A. ;

Kovac, J. M. ;

Kuo, C. L. ;

Lau, K. ;

Leitch, E. M. ;

Lennox, A. ;

Megerian, K. G. ;

Minutolo, L. .

PHYSICAL REVIEW LETTERS, 2021, 127 (15)

[7] Constraints on Primordial Gravitational Waves Using Planck, WMAP, and New BICEP2/Keck Observations through the 2015 Season [J].

Ade, P. A. R. ;

Ahmed, Z. ;

Aikin, R. W. ;

Alexander, K. D. ;

Barkats, D. ;

Benton, S. J. ;

Bischoff, C. A. ;

Bock, J. J. ;

Bowens-Rubin, R. ;

Brevik, J. A. ;

Buder, I. ;

Bullock, E. ;

Buza, V. ;

Connors, J. ;

Cornelison, J. ;

Crill, B. P. ;

Crumrine, M. ;

Dierickx, M. ;

Duband, L. ;

Dvorkin, C. ;

Filippini, J. P. ;

Fliescher, S. ;

Grayson, J. ;

Hall, G. ;

Halpern, M. ;

Harrison, S. ;

Hildebrandt, S. R. ;

Hilton, G. C. ;

Hui, H. ;

Irwin, K. D. ;

Kang, J. ;

Karkare, K. S. ;

Karpel, E. ;

Kaufman, J. P. ;

Keating, B. G. ;

Kefeli, S. ;

Kernasovskiy, S. A. ;

Kovac, J. M. ;

Kuo, C. L. ;

Larsen, N. A. ;

Lau, K. ;

Leitch, E. M. ;

Lueker, M. ;

Megerian, K. G. ;

Moncelsi, L. ;

Namikawa, T. ;

Netterfield, C. B. ;

Nguyen, H. T. ;

O'Brient, R. ;

Ogburn, R. W. .

PHYSICAL REVIEW LETTERS, 2018, 121 (22)

[8] The Simons Observatory: science goals and forecasts [J].

Ade, Peter ;

Aguirre, James ;

Ahmed, Zeeshan ;

Aiola, Simone ;

Ali, Aamir ;

Alonso, David ;

Alvarez, Marcelo A. ;

Arnold, Kam ;

Ashton, Peter ;

Austermann, Jason ;

Awan, Humna ;

Baccigalupi, Carlo ;

Baildon, Taylor ;

Barron, Darcy ;

Battaglia, Nick ;

Battye, Richard ;

Baxter, Eric ;

Bazarko, Andrew ;

Beall, James A. ;

Bean, Rachel ;

Beck, Dominic ;

Beckman, Shawn ;

Beringue, Benjamin ;

Bianchini, Federico ;

Boada, Steven ;

Boettger, David ;

Bond, J. Richard ;

Borrill, Julian ;

Brown, Michael L. ;

Bruno, Sarah Marie ;

Bryan, Sean ;

Calabrese, Erminia ;

Calafut, Victoria ;

Calisse, Paolo ;

Carron, Julien ;

Challinor, Anthony ;

Chesmore, Grace ;

Chinone, Yuji ;

Chluba, Jens ;

Cho, Hsiao-Mei Sherry ;

Choi, Steve ;

Coppi, Gabriele ;

Cothard, Nicholas F. ;

Coughlin, Kevin ;

Crichton, Devin ;

Crowley, Kevin D. ;

Crowley, Kevin T. ;

Cukierman, Ari ;

D'Ewart, John M. ;

Dunner, Rolando .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2019, (02)

[9] Inflation and the scale dependent spectral index: prospects and strategies [J].

Adshead, Peter ;

Easther, Richard ;

Pritchard, Jonathan ;

Loeb, Abraham .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2011, (02)

[10] Planck 2018 results: VIII. Gravitational lensing [J].

Aghanim, N. ;

Akrami, Y. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Ballardini, M. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartolo, N. ;

Basak, S. ;

Benabed, K. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Carron, J. ;

Challinor, A. ;

Chiang, H. C. ;

Colombo, L. P. L. ;

Combet, C. ;

Crill, B. P. ;

Cuttaia, F. ;

de Bernardis, P. ;

de Zotti, G. ;

Delabrouille, J. ;

Di Valentino, E. ;

Diego, J. M. ;

Dore, O. ;

Douspis, M. ;

Ducout, A. ;

Dupac, X. ;

Efstathiou, G. ;

Elsner, F. ;

Ensslin, T. A. ;

Eriksen, H. K. ;

Fantaye, Y. ;

Fernandez-Cobos, R. ;

Finelli, F. ;

Forastieri, F. ;

Frailis, M. ;

Fraisse, A. A. ;

Franceschi, E. .

ASTRONOMY & ASTROPHYSICS, 2020, 641 (641)

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