Příspěvek k mobilitě v kamnářském řemesle

Loskotová, Irena; Hložek, Martin

doi:10.5817/ah2016-2-23

Cited by 4 publications

(3 citation statements)

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“…Phenomenologically, axion masses in the range we have constrained [approximately H 0 < m a < H(z eq )], and up to 10 −23 eV, are probed by the CMB power spectrum and large scale structure [27,59,60]. Higher masses in the range 10 −22 eV m a 10 −20 eV are motivated by their interesting effects on galaxy formation [13,44,[61][62][63], and are probed by high redshift galaxy formation [64][65][66][67] and the Lyman-alpha forest flux power spectrum [68,69].…”

Section: Discussionmentioning

confidence: 96%

“…While inflation is well-motivated by cosmological observations, it is unlikely to be possible to determine the theory precisely due to the limited information available. Dark matter, on the other hand, offers far greater prospects for precision measurement [60], and so by studying multiaxion models in the late Universe we might discover more about physics beyond the Standard Model. In this work we have presented the first exploration of a random matrix multi-axion model for dark matter and dark energy and have used statistical methods to bound the axion mass and decay constant distributions.…”

Section: Discussionmentioning

confidence: 99%

“…(69). In order to account for gauge couplings consistent with the known elementary particles we chose to sample the average values for the 3-cycle volume in the interval V X = [25,60]. In Figs.…”

Section: M-theory Rmt Modelmentioning

confidence: 99%

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Spectrum of the axion dark sector

et al. 2017

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Axions arise in many theoretical extensions of the Standard Model of particle physics, in particular the "string axiverse". If the axion masses, ma, and (effective) decay constants, fa, lie in specific ranges, then axions contribute to the cosmological dark matter and dark energy densities. We compute the background cosmological (quasi-)observables for models with a large number of axion fields, nax ∼ O(10 − 100), with the masses and decay constants drawn from statistical distributions. This reduces the number of parameters from 2nax to a small number of "hyperparameters". We consider a number of distributions, from those motivated purely by statistical considerations, to those where the structure is specified according to a class of M-theory models. Using Bayesian methods we are able to constrain the hyperparameters of the distributions. In some cases the hyperparameters can be related to string theory, e.g. constraining the number ratio of axions to moduli, or the typical decay constant scale needed to provide the correct relic densities. Our methodology incorporates the use of both random matrix theory and Bayesian networks. 1 Cosmology, of course, also presents another two huge problems for the Standard Model: the baryon asymmetry, and the generation of initial conditions (inflation). We will not discuss these problems further.

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Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

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Spectrum of the axion dark sector

et al. 2017

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Kachle s otisky textilu

Loskotová¹,

Hložek²

2017

Archaeologia Historica

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Příspěvek představuje výběr třinácti pozdně středověkých a raně novověkých zlomků a torz kam nových kachlů s otisky textilií na rubu čelní vyhřívací stěny ze sedmi brněnských lokalit, u nichž byl dle možností určen typ textilní vazby a byla provedena mikropetrografická analýza, která prokázala výrobu z místní keramické suroviny získávané z jednoho rozsáhlejšího těžebního areálu na terase řeky Svitavy. Použití textilie je spojeno s materiálem střední zrnitosti a ovlivněno individuálním zvládnutím procesu for mování čelní vyhřívací stěny. Klíčová slova: kamnové kachle-petroarcheologické analýzy-otisky textilu-středověk-raný novověk-Brno.

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Kachle s pěti kruhovými prohlubněmi z areálu města Litovle

Hlubek¹

2017

Archaeologia Historica

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Příspěvek k mobilitě v kamnářském řemesle

Cited by 4 publications

References 0 publications

Spectrum of the axion dark sector

Spectrum of the axion dark sector

Kachle s otisky textilu

Kachle s pěti kruhovými prohlubněmi z areálu města Litovle

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