Download Axions: Theory, Cosmology, and Experimental Searches by Markus Kuster, Georg Raffelt, Berta Beltrán PDF

By Markus Kuster, Georg Raffelt, Berta Beltrán

ISBN-10: 3540735178

ISBN-13: 9783540735175

Axions are extraordinary hypothetical debris which can either clear up the CP challenge of quantum chromodynamics and even as account for the darkish subject of the universe. in keeping with a chain of lectures by means of global specialists during this box held at CERN (Geneva), this quantity presents a pedagogical advent to the speculation, cosmology and astrophysics of those interesting debris and provides an up to date account of the prestige and prospect of ongoing and deliberate experimental searches. inexperienced persons and practitioners of astroparticle physics will locate during this publication either a concise creation and a present reference paintings to a show off subject that connects the “inner area” of the uncomplicated particle global with the “outer house” of the universe at large.

Show description

Read or Download Axions: Theory, Cosmology, and Experimental Searches PDF

Similar cosmology books

Matter And Spirit In The Universe: Scientific And Religious Preludes To Modern Cosmology (History of Modern Physical Sciences)

Cosmology is an strange technological know-how with an strange heritage. This ebook examines the youth of contemporary cosmology from the point of view of its interplay with spiritual proposal. because the first examine of its sort, it finds how heavily linked the improvement of cosmology has been with issues of a philosophical and non secular nature.

QCD as a Theory of Hadrons: From Partons to Confinement (Cambridge Monographs on Particle Physics, Nuclear Physics and Cosmology)

Introducing the elemental concept and up to date advances in Qcd, this booklet studies the old improvement of the topic as much as the current day, overlaying features of sturdy interactions equivalent to the quark and parton versions, the concept of colours and the S-matrix method. the writer then discusses Qcd and Qed as gauge theories, renormalization tactics, Qcd challenging approaches in hadron collisions, hadron jets, and different non-perturbative features of Qcd.

Intelligent Life in the Universe

The 1st well known and actual dialogue of ordinary evolution, origins of the universe, stars and planets. Collaboration among well-known American Carl Sagan and world/famous Russian Astronomer, I. S. Shklovskii explaining the origins and existence within the universe.

The Pillars of Creation: Giant Molecular Clouds, Star Formation, and Cosmic Recycling

This publication explores the mechanics of famous person formation, the method wherein subject pulls jointly and creates new buildings. Written for technological know-how fanatics, the writer provides an available clarification of the way stars are born from the interstellar medium and colossal molecular clouds. Stars produce the chemical compounds that result in existence, and it truly is they that experience enabled the stipulations for planets to shape and existence to emerge.

Extra resources for Axions: Theory, Cosmology, and Experimental Searches

Example text

Phys. B 311, 253 (1988) 40 41. : Phase-space structure of cold dark matter halos. Phys. Lett. B 291, 288 (1992) 41 42. : Robustness of discrete flows and caustics in cold dark matter cosmology. Phys. Rev. D 72, 083513 (2005) [astro-ph/0508049] and references therein 41 2 Axion Cosmology 49 43. : Axion miniclusters. Phys. Lett. B 205, 228 (1988) 42, 43 44. : Axion miniclusters and Bose stars. Phys. Rev. Lett. 71, 3051 (1993) [hep-ph/9303313] 42 45. : Femtolensing and picolensing by axion miniclusters.

II axions do homogenize and hence the axion energy density has a smooth component at teq . However, pop. II axions may get gravitationally bound to miniclusters later on. It seems rather difficult to model this process reliably. A discussion is given in [10]. It is concluded there that the accretion of pop. II axions results in miniclusters that have an inner core of pop. I axions with density of order 10−18 g cm−3 and a fluffy envelope of pop. II axions with density of order 10−25 g cm−3 . When a minicluster falls onto a galaxy, tidal forces are apt to destroy it.

2 String Decay The evolution of axion strings between the PQ and QCD phase-transitions was discussed in Sect. 3. The number density of axions emitted in string 38 P. 70) in terms of the quantities ξ, r¯, and χ that we introduced to parameterize our ignorance of various aspects of string evolution and decay. Because their spectrum dna /dk ∝ k −2 in the range t−1 k (tPQ t)−1/2 , the bulk of axions emitted in string-decay have momenta of order t−1 at 1 time t1 and become non-relativistic soon after they acquire mass.

Download PDF sample

Rated 4.06 of 5 – based on 50 votes