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Title: Indirect detection constraints on s- and t-channel simplified models of dark matter

Abstract

Recent Fermi-LAT observations of dwarf spheroidal galaxies in the Milky Way have placed strong limits on the gamma-ray flux from dark matter annihilation. In order to produce the strongest limit on the dark matter annihilation cross-section, the observations of each dwarf galaxy have typically been "stacked" in a joint-likelihood analysis, utilizing optical observations to constrain the dark matter density profile in each dwarf. These limits have normally been computed only for singular annihilation final states, such as $$b\bar{b}$$ or $$\tau^+\tau^-$$. In this paper, we generalize this approach by producing an independent joint-likelihood analysis to set constraints on models where the dark matter particle annihilates to multiple final state fermions. We interpret these results in the context of the most popular simplified models, including those with s- and t-channel dark matter annihilation through scalar and vector mediators. We introduce our findings as constraints on the minimum dark matter mass and the mediator sector parameters. Additionally, we compare our simplified model results to those of Effective Field Theory contact interactions in the high-mass limit.

Authors:
 [1];  [1];  [1];  [1]
  1. The Ohio State Univ., Columbus, OH (United States)
Publication Date:
Research Org.:
The Ohio State Univ., Columbus, OH (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); National Aeronautics and Space Administration
OSTI Identifier:
1602506
Alternate Identifier(s):
OSTI ID: 1325844
Grant/Contract Number:  
SC0011726; PF3-140110; SC0013529
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 94; Journal Issue: 5; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Carpenter, Linda M., Colburn, Russell, Goodman, Jessica, and Linden, Tim. Indirect detection constraints on s- and t-channel simplified models of dark matter. United States: N. p., 2016. Web. doi:10.1103/PhysRevD.94.055027.
Carpenter, Linda M., Colburn, Russell, Goodman, Jessica, & Linden, Tim. Indirect detection constraints on s- and t-channel simplified models of dark matter. United States. https://doi.org/10.1103/PhysRevD.94.055027
Carpenter, Linda M., Colburn, Russell, Goodman, Jessica, and Linden, Tim. 2016. "Indirect detection constraints on s- and t-channel simplified models of dark matter". United States. https://doi.org/10.1103/PhysRevD.94.055027. https://www.osti.gov/servlets/purl/1602506.
@article{osti_1602506,
title = {Indirect detection constraints on s- and t-channel simplified models of dark matter},
author = {Carpenter, Linda M. and Colburn, Russell and Goodman, Jessica and Linden, Tim},
abstractNote = {Recent Fermi-LAT observations of dwarf spheroidal galaxies in the Milky Way have placed strong limits on the gamma-ray flux from dark matter annihilation. In order to produce the strongest limit on the dark matter annihilation cross-section, the observations of each dwarf galaxy have typically been "stacked" in a joint-likelihood analysis, utilizing optical observations to constrain the dark matter density profile in each dwarf. These limits have normally been computed only for singular annihilation final states, such as $b\bar{b}$ or $\tau^+\tau^-$. In this paper, we generalize this approach by producing an independent joint-likelihood analysis to set constraints on models where the dark matter particle annihilates to multiple final state fermions. We interpret these results in the context of the most popular simplified models, including those with s- and t-channel dark matter annihilation through scalar and vector mediators. We introduce our findings as constraints on the minimum dark matter mass and the mediator sector parameters. Additionally, we compare our simplified model results to those of Effective Field Theory contact interactions in the high-mass limit.},
doi = {10.1103/PhysRevD.94.055027},
url = {https://www.osti.gov/biblio/1602506}, journal = {Physical Review D},
issn = {2470-0010},
number = 5,
volume = 94,
place = {United States},
year = {Wed Sep 21 00:00:00 EDT 2016},
month = {Wed Sep 21 00:00:00 EDT 2016}
}

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Cited by: 24 works
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Works referenced in this record:

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journal, July 2014


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journal, August 2015


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text, January 2018


Indication of Gamma-ray Emission from the Newly Discovered Dwarf Galaxy Reticulum II
text, January 2015


Constraints on Light Majorana Dark Matter from Colliders
text, January 2010


Gamma Ray Line Constraints on Effective Theories of Dark Matter
text, January 2010


Weak Corrections are Relevant for Dark Matter Indirect Detection
text, January 2010


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preprint, January 2012


On the Validity of the Effective Field Theory for Dark Matter Searches at the LHC
text, January 2013


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text, January 2014


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text, January 2014


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text, January 2015


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Works referencing / citing this record:

Bayesian analysis of sneutrino dark matter in the NMSSM with a type-I seesaw mechanism
journal, June 2019


The waning of the WIMP? A review of models, searches, and constraints
journal, March 2018


The Waning of the WIMP? A Review of Models, Searches, and Constraints
text, January 2017