Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
Constraining chameleon field theories using the GammeV afterglow experiments
Physical Review D - Particles, Fields, Gravitation and Cosmology, Volume 81, No. 1, Article 015013, Year 2010
Notification
URL copied to clipboard!
Description
The GammeV experiment has constrained the couplings of chameleon scalar fields to matter and photons. Here, we present a detailed calculation of the chameleon afterglow rate underlying these constraints. The dependence of GammeV constraints on various assumptions in the calculation is studied. We discuss the GammeV-CHameleon Afterglow SEarch, a second-generation GammeV experiment, which will improve upon GammeV in several major ways. Using our calculation of the chameleon afterglow rate, we forecast model-independent constraints achievable by GammeV-CHameleon Afterglow SEarch. We then apply these constraints to a variety of chameleon models, including quartic chameleons and chameleon dark energy models. The new experiment will be able to probe a large region of parameter space that is beyond the reach of current tests, such as fifth force searches, constraints on the dimming of distant astrophysical objects, and bounds on the variation of the fine structure constant. © 2010 The American Physical Society.
Authors & Co-Authors
Upadhye, Amol
United States, Chicago
The Kavli Institute for Cosmological Physics
Steffen, Jason H.
United States, Batavia
Fermi National Accelerator Laboratory
Weltman, Amanda
United Kingdom, Cambridge
Faculty of Mathematics
South Africa, Cape Town
University of Cape Town
Statistics
Citations: 3
Authors: 3
Affiliations: 4
Identifiers
Doi:
10.1103/PhysRevD.81.015013
ISSN:
15507998
e-ISSN:
15502368
Study Approach
Quantitative