Abstract
We investigate production of non-thermal dark matter particles and heavy sterile neutrinos from inflaton during the reheating era, which is preceded by a slow-roll inflationary epoch with a quartic potential and non-minimal coupling (ξ) between inflaton and gravity. We compare our analysis between metric and Palatini formalism. For the latter, the tensor-to-scalar ratio, r, decreases with ξ. We find that for ξ = 0.5 and number of e-folds ~ 60, r can be as small as ~ \( \mathcal{O} \) (10−3) which may be validated at future reaches of upcoming CMB observation such as CMB-S4 etc. We identify the permissible range of Yukawa coupling yχ between inflaton and fermionic DM χ, to be \( \mathcal{O} \) (10−3.5) ≳ yχ ≳ \( \mathcal{O} \) (10−20) for metric formalism and \( \mathcal{O} \) (10−4) ≳ yχ ≳ \( \mathcal{O} \) (10−11) for Palatini formalism which is consistent with current PLANCK data and also within the reach of future CMB experiments. For the scenario of leptogenesis via the decay of sterile neutrinos produced from inflaton decay, we also investigate the parameter space involving heavy neutrino mass MN1 and Yukawa coupling yN1 of sterile neutrino with inflaton, which are consistent with current CMB data and successful generation of the observed baryon asymmetry of the universe via leptogenesis. In contrast to metric formalism, in the case of Palatini formalism, for successful leptogenesis to occur, we find that yN1 has a very narrow allowable range and is severely constrained from the consistency with CMB predictions.
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References
C. Bambi and A.D. Dolgov, Introduction to Particle Cosmology, in UNITEXT for Physics, Springer (2015) [https://doi.org/10.1007/978-3-662-48078-6] [INSPIRE].
Planck collaboration, Planck 2018 results. Part VI. Cosmological parameters, Astron. Astrophys. 641 (2020) A6 [Erratum ibid. 652 (2021) C4] [arXiv:1807.06209] [INSPIRE].
Particle Data collaboration, Review of Particle Physics, Prog. Theor. Exp. Phys. 2020 (2020) 083C01 [INSPIRE].
B.D. Fields, K.A. Olive, T.-H. Yeh and C. Young, Big-Bang Nucleosynthesis after Planck, JCAP 03 (2020) 010 [Erratum ibid. 11 (2020) E02] [arXiv:1912.01132] [INSPIRE].
G. Steigman, When Clusters Collide: Constraints On Antimatter On The Largest Scales, JCAP 10 (2008) 001 [arXiv:0808.1122] [INSPIRE].
A.G. Cohen, A. De Rujula and S.L. Glashow, A Matter-Antimatter Universe?, Astrophys. J. 495 (1998) 539 [astro-ph/9707087] [INSPIRE].
A.D. Sakharov, Violation of CP Invariance, C asymmetry, and baryon asymmetry of the universe, Pisma Zh. Eksp. Teor. Fiz. 5 (1967) 32 [INSPIRE].
S.W. Hawking, Black hole explosions, Nature 248 (1974) 30 [INSPIRE].
Y.B. Zeldovich, Charge Asymmetry of the Universe Due to Black Hole Evaporation and Weak Interaction Asymmetry, Pisma Zh. Eksp. Teor. Fiz. 24 (1976) 29 [INSPIRE].
V.A. Kuzmin, V.A. Rubakov and M.E. Shaposhnikov, On the Anomalous Electroweak Baryon Number Nonconservation in the Early Universe, Phys. Lett. B 155 (1985) 36 [INSPIRE].
M.E. Shaposhnikov, Possible Appearance of the Baryon Asymmetry of the Universe in an Electroweak Theory, JETP Lett. 44 (1986) 465 [INSPIRE].
M.E. Shaposhnikov, Baryon Asymmetry of the Universe in Standard Electroweak Theory, Nucl. Phys. B 287 (1987) 757 [INSPIRE].
M. Fukugita and T. Yanagida, Baryogenesis Without Grand Unification, Phys. Lett. B 174 (1986) 45 [INSPIRE].
P. Minkowski, μ → eγ at a Rate of One Out of 109 Muon Decays?, Phys. Lett. B 67 (1977) 421 [INSPIRE].
M. Gell-Mann, P. Ramond and R. Slansky, Complex Spinors and Unified Theories, Conf. Proc. C 790927 (1979) 315 [arXiv:1306.4669] [INSPIRE].
T. Yanagida, Horizontal gauge symmetry and masses of neutrinos, Conf. Proc. C 7902131 (1979) 95 [INSPIRE].
R.N. Mohapatra and G. Senjanovic, Neutrino Mass and Spontaneous Parity Nonconservation, Phys. Rev. Lett. 44 (1980) 912 [INSPIRE].
R.N. Mohapatra, Seesaw mechanism and its implications, in the proceedings of the SEESAW25: International Conference on the Seesaw Mechanism and the Neutrino Mass, Paris, France, 10–11 June 2004 [https://doi.org/10.1142/9789812702210_0003] [hep-ph/0412379] [INSPIRE].
Particle Data collaboration, Review of Particle Physics, Prog. Theor. Exp. Phys. 2022 (2022) 083C01 [INSPIRE].
L. Bergstrom, T. Bringmann, I. Cholis, D. Hooper and C. Weniger, New Limits on Dark Matter Annihilation from AMS Cosmic Ray Positron Data, Phys. Rev. Lett. 111 (2013) 171101 [arXiv:1306.3983] [INSPIRE].
A. Cuoco, J. Heisig, M. Korsmeier and M. Krämer, Constraining heavy dark matter with cosmic-ray antiprotons, JCAP 04 (2018) 004 [arXiv:1711.05274] [INSPIRE].
ATLAS collaboration, Dark matter summary plots for s-channel and 2HDM+a models, ATL-PHYS-PUB-2021-045 (2021).
ATLAS collaboration, Searches for dark matter with the ATLAS detector, SciPost Phys. Proc. 12 (2023) 048 [INSPIRE].
S. Giagu, WIMP Dark Matter Searches With the ATLAS Detector at the LHC, Front. Phys. 7 (2019) 75 [INSPIRE].
M. Kamionkowski and A. Kosowsky, The Cosmic microwave background and particle physics, Annu. Rev. Nucl. Part. Sci. 49 (1999) 77 [astro-ph/9904108] [INSPIRE].
BICEP and Keck collaborations, Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season, Phys. Rev. Lett. 127 (2021) 151301 [arXiv:2110.00483] [INSPIRE].
L. Boubekeur, E. Giusarma, O. Mena and H. Ramírez, Does Current Data Prefer a Non-minimally Coupled Inflaton?, Phys. Rev. D 91 (2015) 103004 [arXiv:1502.05193] [INSPIRE].
F.L. Bezrukov, Non-minimal coupling in inflation and inflating with the Higgs boson, in the proceedings of the 15th International Seminar on High Energy Physics, Sergiev Posad, Russian Federation, 23–29 May 2008, arXiv:0810.3165 [INSPIRE].
R. Kallosh and A. Linde, Superconformal generalization of the chaotic inflation model \( \frac{\lambda }{4}{\phi}^4-\frac{\xi }{2}{\phi}^2R \), JCAP 06 (2013) 027 [arXiv:1306.3211] [INSPIRE].
M.P. Hertzberg, On Inflation with Non-minimal Coupling, JHEP 11 (2010) 023 [arXiv:1002.2995] [INSPIRE].
S. Capozziello, F. Darabi and D. Vernieri, Equivalence between Palatini and metric formalisms of f (R)-gravity by divergence free current, Mod. Phys. Lett. A 26 (2011) 65 [arXiv:1006.0454] [INSPIRE].
R. Kallosh, A. Linde and D. Roest, Universal Attractor for Inflation at Strong Coupling, Phys. Rev. Lett. 112 (2014) 011303 [arXiv:1310.3950] [INSPIRE].
L. Järv, A. Racioppi and T. Tenkanen, Palatini side of inflationary attractors, Phys. Rev. D 97 (2018) 083513 [arXiv:1712.08471] [INSPIRE].
A. Racioppi, Coleman-Weinberg linear inflation: metric vs. Palatini formulation, JCAP 12 (2017) 041 [arXiv:1710.04853] [INSPIRE].
D.Y. Cheong, S.M. Lee and S.C. Park, Reheating in models with non-minimal coupling in metric and Palatini formalisms, JCAP 02 (2022) 029 [arXiv:2111.00825] [INSPIRE].
N. Bostan, Non-minimally coupled Natural Inflation: Palatini and Metric formalism with the recent BICEP/Keck, JCAP 02 (2023) 063 [arXiv:2209.02434] [INSPIRE].
A. Racioppi, Non-Minimal (Self-)Running Inflation: Metric vs. Palatini Formulation, JHEP 01 (2021) 011 [arXiv:1912.10038] [INSPIRE].
F. Bauer and D.A. Demir, Inflation with Non-Minimal Coupling: Metric versus Palatini Formulations, Phys. Lett. B 665 (2008) 222 [arXiv:0803.2664] [INSPIRE].
M. Borunda, B. Janssen and M. Bastero-Gil, Palatini versus metric formulation in higher curvature gravity, JCAP 11 (2008) 008 [arXiv:0804.4440] [INSPIRE].
M. Shaposhnikov, A. Shkerin and S. Zell, Quantum Effects in Palatini Higgs Inflation, JCAP 07 (2020) 064 [arXiv:2002.07105] [INSPIRE].
M. Artymowski and A. Racioppi, Scalar-tensor linear inflation, JCAP 04 (2017) 007 [arXiv:1610.09120] [INSPIRE].
K. Kannike, A. Racioppi and M. Raidal, Linear inflation from quartic potential, JHEP 01 (2016) 035 [arXiv:1509.05423] [INSPIRE].
N.D. Barrie, A. Kobakhidze and S. Liang, Natural Inflation with Hidden Scale Invariance, Phys. Lett. B 756 (2016) 390 [arXiv:1602.04901] [INSPIRE].
R. Allahverdi, R. Brandenberger, F.-Y. Cyr-Racine and A. Mazumdar, Reheating in Inflationary Cosmology: Theory and Applications, Annu. Rev. Nucl. Part. Sci. 60 (2010) 27 [arXiv:1001.2600] [INSPIRE].
A. Ghoshal, Z. Lalak and S. Porey, Measuring inflaton couplings via dark radiation as ∆Neff in CMB, Phys. Rev. D 108 (2023) 063030 [arXiv:2302.03268] [INSPIRE].
A. Ghoshal, G. Lambiase, S. Pal, A. Paul and S. Porey, Inflection-point inflation and dark matter redux, JHEP 09 (2022) 231 [arXiv:2206.10648] [INSPIRE].
T. Asaka, K. Hamaguchi, M. Kawasaki and T. Yanagida, Leptogenesis in inflaton decay, Phys. Lett. B 464 (1999) 12 [hep-ph/9906366] [INSPIRE].
R.T. Co, Y. Mambrini and K.A. Olive, Inflationary gravitational leptogenesis, Phys. Rev. D 106 (2022) 075006 [arXiv:2205.01689] [INSPIRE].
V.N. Senoguz and Q. Shafi, New inflation, preinflation, and leptogenesis, Phys. Lett. B 596 (2004) 8 [hep-ph/0403294] [INSPIRE].
T. Asaka, K. Hamaguchi, M. Kawasaki and T. Yanagida, Leptogenesis in inflationary universe, Phys. Rev. D 61 (2000) 083512 [hep-ph/9907559] [INSPIRE].
N.D. Barrie, C. Han and H. Murayama, Affleck-Dine Leptogenesis from Higgs Inflation, Phys. Rev. Lett. 128 (2022) 141801 [arXiv:2106.03381] [INSPIRE].
N. Bostan and V.N. Şenoğuz, Quartic inflation and radiative corrections with non-minimal coupling, JCAP 10 (2019) 028 [arXiv:1907.06215] [INSPIRE].
T. Markkanen, T. Tenkanen, V. Vaskonen and H. Veermäe, Quantum corrections to quartic inflation with a non-minimal coupling: metric vs. Palatini, JCAP 03 (2018) 029 [arXiv:1712.04874] [INSPIRE].
R.Z. Ferreira, A. Notari and G. Simeon, Natural Inflation with a periodic non-minimal coupling, JCAP 11 (2018) 021 [arXiv:1806.05511] [INSPIRE].
A. Ghoshal, M.Y. Khlopov, Z. Lalak and S. Porey, Post-inflationary production of particle Dark Matter: non-minimal Natural inflationary scenarios, arXiv:2306.08675 [INSPIRE].
M. AlHallak, N. Chamoun and M.S. Eldaher, Natural Inflation with non minimal coupling to gravity in R2 gravity under the Palatini formalism, JCAP 10 (2022) 001 [arXiv:2202.01002] [INSPIRE].
S.C. Park and S. Yamaguchi, Inflation by non-minimal coupling, JCAP 08 (2008) 009 [arXiv:0801.1722] [INSPIRE].
S. Rasanen and P. Wahlman, Higgs inflation with loop corrections in the Palatini formulation, JCAP 11 (2017) 047 [arXiv:1709.07853] [INSPIRE].
J. Garcia-Bellido, D.G. Figueroa and J. Rubio, Preheating in the Standard Model with the Higgs-Inflaton coupled to gravity, Phys. Rev. D 79 (2009) 063531 [arXiv:0812.4624] [INSPIRE].
F. Bezrukov and M. Shaposhnikov, Standard Model Higgs boson mass from inflation: Two loop analysis, JHEP 07 (2009) 089 [arXiv:0904.1537] [INSPIRE].
F.L. Bezrukov and M. Shaposhnikov, The Standard Model Higgs boson as the inflaton, Phys. Lett. B 659 (2008) 703 [arXiv:0710.3755] [INSPIRE].
A. Ghoshal, G. Lambiase, S. Pal, A. Paul and S. Porey, Near-inflection point inflation and production of dark matter during reheating, in the proceedings of the 25th Workshop on What Comes Beyond the Standard Models?, Bled, Slovenia, 4–10 July 2022, arXiv:2211.15061 [INSPIRE].
A. Ghoshal, G. Lambiase, S. Pal, A. Paul and S. Porey, Post-Inflationary Production of Dark Matter after Inflection Point Slow Roll Inflation, Symmetry 15 (2023) 543 [INSPIRE].
N. Bernal and Y. Xu, Polynomial inflation and dark matter, Eur. Phys. J. C 81 (2021) 877 [arXiv:2106.03950] [INSPIRE].
A. Ghoshal, M.Y. Khlopov, Z. Lalak and S. Porey, Postinflationary production of particle dark matter: Hilltop and Coleman-Weinberg inflation, Phys. Rev. D 109 (2024) 063037 [arXiv:2306.09409] [INSPIRE].
I.D. Gialamas, A. Karam, T.D. Pappas and E. Tomberg, Implications of Palatini gravity for inflation and beyond, Int. J. Geom. Meth. Mod. Phys. 20 (2023) 2330007 [arXiv:2303.14148] [INSPIRE].
T. Takahashi and T. Tenkanen, Towards distinguishing variants of non-minimal inflation, JCAP 04 (2019) 035 [arXiv:1812.08492] [INSPIRE].
A. Racioppi and M. Vasar, On the number of e-folds in the Jordan and Einstein frames, Eur. Phys. J. Plus 137 (2022) 637 [arXiv:2111.09677] [INSPIRE].
K. Kannike, A. Racioppi and M. Raidal, Super-heavy dark matter-Towards predictive scenarios from inflation, Nucl. Phys. B 918 (2017) 162 [arXiv:1605.09378] [INSPIRE].
A. Racioppi, J. Rajasalu and K. Selke, Multiple point criticality principle and Coleman-Weinberg inflation, JHEP 06 (2022) 107 [arXiv:2109.03238] [INSPIRE].
N. Okada and D. Raut, Running non-minimal inflation with stabilized inflaton potential, Eur. Phys. J. C 77 (2017) 247 [arXiv:1509.04439] [INSPIRE].
D. Baumann, Inflation, in the proceedings of the Theoretical Advanced Study Institute in Elementary Particle Physics: Physics of the Large and the Small, Boulder, U.S.A., 1–26 June 2009, pp. 523–686 [https://doi.org/10.1142/9789814327183_0010] [arXiv:0907.5424] [INSPIRE].
D.H. Lyth and A.R. Liddle, The Primordial Density Perturbation, Cambridge University Press (2009) [https://doi.org/10.1017/cbo9780511819209] [INSPIRE].
BICEP/Keck collaboration, The Latest Constraints on Inflationary B-modes from the BICEP/Keck Telescopes, in the proceedings of the 56th Rencontres de Moriond on Cosmology, La Thuile, Italy, 23–30 January 2022, arXiv:2203.16556 [INSPIRE].
P. Campeti and E. Komatsu, New Constraint on the Tensor-to-scalar Ratio from the Planck and BICEP/Keck Array Data Using the Profile Likelihood, Astrophys. J. 941 (2022) 110 [arXiv:2205.05617] [INSPIRE].
LiteBIRD collaboration, LiteBIRD: JAXA’s new strategic L-class mission for all-sky surveys of cosmic microwave background polarization, Proc. SPIE 11443 (2020) 114432F [arXiv:2101.12449] [INSPIRE].
CMB-S4 collaboration, CMB-S4 Science Book, First Edition, arXiv:1610.02743 [INSPIRE].
Simons Observatory collaboration, The Simons Observatory: Science goals and forecasts, JCAP 02 (2019) 056 [arXiv:1808.07445] [INSPIRE].
S.R. Coleman and E.J. Weinberg, Radiative Corrections as the Origin of Spontaneous Symmetry Breaking, Phys. Rev. D 7 (1973) 1888 [INSPIRE].
M. Drees and Y. Xu, Small field polynomial inflation: reheating, radiative stability and lower bound, JCAP 09 (2021) 012 [arXiv:2104.03977] [INSPIRE].
L. Järv, S. Karamitsos and M. Saal, Global Portraits of Nonminimal Inflation: Metric and Palatini, arXiv:2401.12314 [INSPIRE].
M.A.G. Garcia, K. Kaneta, Y. Mambrini and K.A. Olive, Reheating and Post-inflationary Production of Dark Matter, Phys. Rev. D 101 (2020) 123507 [arXiv:2004.08404] [INSPIRE].
N. Bernal, F. Elahi, C. Maldonado and J. Unwin, Ultraviolet Freeze-in and Non-Standard Cosmologies, JCAP 11 (2019) 026 [arXiv:1909.07992] [INSPIRE].
G.F. Giudice, E.W. Kolb and A. Riotto, Largest temperature of the radiation era and its cosmological implications, Phys. Rev. D 64 (2001) 023508 [hep-ph/0005123] [INSPIRE].
T. Hasegawa, N. Hiroshima, K. Kohri, R.S.L. Hansen, T. Tram and S. Hannestad, MeV-scale reheating temperature and thermalization of oscillating neutrinos by radiative and hadronic decays of massive particles, JCAP 12 (2019) 012 [arXiv:1908.10189] [INSPIRE].
M. Kawasaki, K. Kohri and N. Sugiyama, MeV scale reheating temperature and thermalization of neutrino background, Phys. Rev. D 62 (2000) 023506 [astro-ph/0002127] [INSPIRE].
M. Viel, G.D. Becker, J.S. Bolton and M.G. Haehnelt, Warm dark matter as a solution to the small scale crisis: New constraints from high redshift Lyman-α forest data, Phys. Rev. D 88 (2013) 043502 [arXiv:1306.2314] [INSPIRE].
N. Palanque-Delabrouille et al., Hints, neutrino bounds and WDM constraints from SDSS DR14 Lyman-α and Planck full-survey data, JCAP 04 (2020) 038 [arXiv:1911.09073] [INSPIRE].
A. Garzilli, A. Magalich, O. Ruchayskiy and A. Boyarsky, How to constrain warm dark matter with the Lyman-α forest, Mon. Not. Roy. Astron. Soc. 502 (2021) 2356 [arXiv:1912.09397] [INSPIRE].
K.J. Bae, A. Kamada, S.P. Liew and K. Yanagi, Light axinos from freeze-in: production processes, phase space distributions, and Ly-α forest constraints, JCAP 01 (2018) 054 [arXiv:1707.06418] [INSPIRE].
R. Murgia, A. Merle, M. Viel, M. Totzauer and A. Schneider, “Non-cold” dark matter at small scales: a general approach, JCAP 11 (2017) 046 [arXiv:1704.07838] [INSPIRE].
J. Heeck and D. Teresi, Cold keV dark matter from decays and scatterings, Phys. Rev. D 96 (2017) 035018 [arXiv:1706.09909] [INSPIRE].
S. Boulebnane, J. Heeck, A. Nguyen and D. Teresi, Cold light dark matter in extended seesaw models, JCAP 04 (2018) 006 [arXiv:1709.07283] [INSPIRE].
I. Baldes, Q. Decant, D.C. Hooper and L. Lopez-Honorez, Non-Cold Dark Matter from Primordial Black Hole Evaporation, JCAP 08 (2020) 045 [arXiv:2004.14773] [INSPIRE].
G. Ballesteros, M.A.G. Garcia and M. Pierre, How warm are non-thermal relics? Lyman-α bounds on out-of-equilibrium dark matter, JCAP 03 (2021) 101 [arXiv:2011.13458] [INSPIRE].
F. D’Eramo and A. Lenoci, Lower mass bounds on FIMP dark matter produced via freeze-in, JCAP 10 (2021) 045 [arXiv:2012.01446] [INSPIRE].
Q. Decant, J. Heisig, D.C. Hooper and L. Lopez-Honorez, Lyman-α constraints on freeze-in and superWIMPs, JCAP 03 (2022) 041 [arXiv:2111.09321] [INSPIRE].
C.S. Fong, E. Nardi and A. Riotto, Leptogenesis in the Universe, Adv. High Energy Phys. 2012 (2012) 158303 [arXiv:1301.3062] [INSPIRE].
V.A. Rubakov and D.S. Gorbunov, Introduction to the Theory of the Early Universe: Hot big bang theory, World Scientific, Singapore (2017) [https://doi.org/10.1142/10447] [INSPIRE].
P. Di Bari, An introduction to leptogenesis and neutrino properties, Contemp. Phys. 53 (2012) 315 [arXiv:1206.3168] [INSPIRE].
W. Buchmuller, R.D. Peccei and T. Yanagida, Leptogenesis as the origin of matter, Annu. Rev. Nucl. Part. Sci. 55 (2005) 311 [hep-ph/0502169] [INSPIRE].
S. Davidson, E. Nardi and Y. Nir, Leptogenesis, Phys. Rep. 466 (2008) 105 [arXiv:0802.2962] [INSPIRE].
M. Trodden, Baryogenesis and leptogenesis, eConf C 040802 (2004) L018 [hep-ph/0411301] [INSPIRE].
F. del Aguila, L. Ametller, G.L. Kane and J. Vidal, Vector Like Fermion and Standard Higgs Production at Hadron Colliders, Nucl. Phys. B 334 (1990) 1 [INSPIRE].
T. Fukuyama, T. Kikuchi and T. Osaka, Non-thermal leptogenesis and a prediction of inflaton mass in a supersymmetric SO(10) model, JCAP 06 (2005) 005 [hep-ph/0503201] [INSPIRE].
K. Hamaguchi, Cosmological baryon asymmetry and neutrinos: Baryogenesis via leptogenesis in supersymmetric theories, Ph.D. Thesis, University of Tokyo, Tokyo, Japan (2002) [hep-ph/0212305] [INSPIRE].
K. Sravan Kumar and P. Vargas Moniz, Conformal GUT inflation, proton lifetime and non-thermal leptogenesis, Eur. Phys. J. C 79 (2019) 945 [arXiv:1806.09032] [INSPIRE].
S. Davidson and A. Ibarra, A Lower bound on the right-handed neutrino mass from leptogenesis, Phys. Lett. B 535 (2002) 25 [hep-ph/0202239] [INSPIRE].
SPT collaboration, Measurements of B-mode Polarization of the Cosmic Microwave Background from 500 Square Degrees of SPTpol Data, Phys. Rev. D 101 (2020) 122003 [arXiv:1910.05748] [INSPIRE].
D. Adak et al., B-mode forecast of CMB-Bharat, Mon. Not. Roy. Astron. Soc. 514 (2022) 3002 [arXiv:2110.12362] [INSPIRE].
P. Amaro-Seoane et al., eLISA/NGO: Astrophysics and cosmology in the gravitational-wave millihertz regime, GW Notes 6 (2013) 4 [arXiv:1201.3621] [INSPIRE].
M. Evans et al., A Horizon Study for Cosmic Explorer: Science, Observatories, and Community, arXiv:2109.09882 [INSPIRE].
M. Maggiore et al., Science Case for the Einstein Telescope, JCAP 03 (2020) 050 [arXiv:1912.02622] [INSPIRE].
A. Racioppi, New universal attractor in nonminimally coupled gravity: Linear inflation, Phys. Rev. D 97 (2018) 123514 [arXiv:1801.08810] [INSPIRE].
R. Maji and Q. Shafi, Monopoles, strings and gravitational waves in non-minimal inflation, JCAP 03 (2023) 007 [arXiv:2208.08137] [INSPIRE].
K. Dimopoulos, C. Owen and A. Racioppi, Loop inflection-point inflation, Astropart. Phys. 103 (2018) 16 [arXiv:1706.09735] [INSPIRE].
Acknowledgments
Work of Shiladitya Porey is funded by RSF Grant 19-42-02004. Supratik Pal thanks Department of Science and Technology, Government of India for partial support through Grant No. NMICPS/006/MD/2020-21.
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Ghoshal, A., Lalak, Z., Pal, S. et al. Post-inflationary leptogenesis and dark matter production: metric versus Palatini formalism. J. High Energ. Phys. 2024, 38 (2024). https://doi.org/10.1007/JHEP06(2024)038
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DOI: https://doi.org/10.1007/JHEP06(2024)038