Author: Tracy Robin SlatyerPublisher:
ISBN:
Category : Dark matter (Astronomy)
Languages : en
Pages : 260
Book Description
Signatures of a New Force in the Dark Matter Sector
Author: Tracy Robin SlatyerPublisher:
ISBN:
Category : Dark matter (Astronomy)
Languages : en
Pages : 260
Book Description
Observational Signatures of Supersymmetric Dark Matter
Author: Yue-Lin Sming TsaiSignatures of Dark Matter
Author: Edward Anthony BaltzPublisher:
ISBN:
Category :
Languages : en
Pages : 490
Book Description
Gravitational Signatures of Wave Dark Matter
Author: Alessandro LenociGalactic Signatures of Decaying Dark Matter
Author: Le ZhangAsymmetric Dark Matter
Author: Kathryn M. ZurekPlacing Limits on Experimental Signatures of Dark Matter Model Predictions
Author: Arjun SharmaPublisher:
ISBN: 9780438370142
Category :
Languages : en
Pages : 44
Book Description
In this work, we consider two different models of dark matter and set limits on results of experiments. One is a dynamic dark matter scenario where we put limits on parameters observable by experiments DAMA and XMASS through nuclear recoil of detector atoms (direct detection). The second is a case of dark matter annihilation into positrons and electrons and the signal this would produce on measured values of positron flux and ratio of electron to positron (indirect detection). The values of these quantities as measured by FERMI and PAMELA experiments are observed and an explanation using a dark matter annihilation is presented vs astrophysical sources of particles.
Particle Dark Matter
Author: Gianfranco BertonePublisher: Cambridge University Press
ISBN: 0521763681
Category : Science
Languages : en
Pages : 763
Book Description
Describes the dark matter problem in particle physics, astrophysics and cosmology for graduate students and researchers.
Probing Cosmic Dark Matter and Dark Energy with Weak Gravitational Lensing Statistics
Author: Masato ShirasakiPublisher: Springer
ISBN: 9812877967
Category : Science
Languages : en
Pages : 144
Book Description
In this book the applicability and the utility of two statistical approaches for understanding dark energy and dark matter with gravitational lensing measurement are introduced. For cosmological constraints on the nature of dark energy, morphological statistics called Minkowski functionals (MFs) to extract the non-Gaussian information of gravitational lensing are studied. Measuring lensing MFs from the Canada–France–Hawaii Telescope Lensing survey (CFHTLenS), the author clearly shows that MFs can be powerful statistics beyond the conventional approach with the two-point correlation function. Combined with the two-point correlation function, MFs can constrain the equation of state of dark energy with a precision level of approximately 3–4 % in upcoming surveys with sky coverage of 20,000 square degrees. On the topic of dark matter, the author studied the cross-correlation of gravitational lensing and the extragalactic gamma-ray background (EGB). Dark matter annihilation is among the potential contributors to the EGB. The cross-correlation is a powerful probe of signatures of dark matter annihilation, because both cosmic shear and gamma-ray emission originate directly from the same dark matter distribution in the universe. The first measurement of the cross-correlation using a real data set obtained from CFHTLenS and the Fermi Large Area Telescope was performed. Comparing the result with theoretical predictions, an independent constraint was placed on dark matter annihilation. Future lensing surveys will be useful to constrain on the canonical value of annihilation cross section for a wide range of mass of dark matter annihilation. Future lensing surveys will be useful to constrain on the canonical value of annihilation cross section for a wide range of mass of dark matter.
Author: Jan Olzem