Likelihood analysis of the minimal AMSB model
Abstract
We perform a likelihood analysis of the minimal Anomaly-Mediated Supersymmetry Breaking (mAMSB) model using constraints from cosmology and accelerator experiments. We find that a wino-like or a Higgsino-like neutralino LSP, $$m_{\tilde \chi^0_{1}}$$, may provide the cold dark matter (DM) with similar likelihood. The upper limit on the DM density from Planck and other experiments enforces $$m_{\tilde \chi^0_{1}} \lesssim 3~TeV$$ after the inclusion of Sommerfeld enhancement in its annihilations. If most of the cold DM density is provided by the $$\tilde \chi_0^1$$, the measured value of the Higgs mass favours a limited range of $$\tan \beta \sim 5$$ (or for $$\mu > 0$$, $$\tan \beta \sim 45$$) but the scalar mass $$m_0$$ is poorly constrained. In the wino-LSP case, $$m_{3/2}$$ is constrained to about $900~TeV$ and $${m_{\tilde \chi^0_{1}}}$$ to $$2.9\pm0.1~TeV$$, whereas in the Higgsino-LSP case $$m_{3/2}$$ has just a lower limit $$\gtrsim 650TeV$$ ($$\gtrsim 480TeV$$) and $$m_{\tilde \chi^0_{1}}$$ is constrained to $$1.12 ~(1.13) \pm0.02~TeV$$ in the $$\mu>0$$ ($$\mu<0$$) scenario. In neither case can the anomalous magnetic moment of the muon, $${(g-2)_\mu}$$, be improved significantly relative to its Standard Model (SM) value, nor do flavour measurements constrain the model significantly, and there are poor prospects for discovering supersymmetric particles at the LHC, {though there} are some prospects for direct DM detection. On the other hand, if the $${m_{\tilde \chi^0_{1}}}$$ contributes only a fraction of the cold DM density, {future LHC $$E_T$$-based searches for gluinos, squarks and heavier chargino and neutralino states as well as disappearing track searches in the wino-like LSP region will be relevant}, and interference effects enable $${\rm BR}(B_{s, d} \to \mu^+\mu^-)$$ to agree with the data better than in the SM in the case of wino-like DM with $$\mu > 0$$.
- Authors:
- Publication Date:
- Research Org.:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1353303
- Alternate Identifier(s):
- OSTI ID: 1354877
- Report Number(s):
- CERN-PH-TH-2016-220; arXiv:1612.05210; FERMILAB-PUB-16-502-CMS; DESY-16-155; KCL-PH-TH-2016-58; CERN-TH-2016-220; IFT-UAM-CSIC-16-112; IPMU-16-0157; FTPI-MINN-16-30; UMN-TH-3610-16; IPPP-16-104
Journal ID: ISSN 1434-6044; 268; PII: 4810
- Grant/Contract Number:
- AC02-07CH11359
- Resource Type:
- Published Article
- Journal Name:
- European Physical Journal. C, Particles and Fields
- Additional Journal Information:
- Journal Name: European Physical Journal. C, Particles and Fields Journal Volume: 77 Journal Issue: 4; Journal ID: ISSN 1434-6044
- Publisher:
- Springer
- Country of Publication:
- Germany
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Bagnaschi, E., Borsato, M., Sakurai, K., Buchmueller, O., Cavanaugh, R., Chobanova, V., Citron, M., Costa, J. C., De Roeck, A., Dolan, M. J., Ellis, J. R., Flächer, H., Heinemeyer, S., Isidori, G., Lucio, M., Luo, F., Santos, D. Martínez, Olive, K. A., Richards, A., and Weiglein, G. Likelihood analysis of the minimal AMSB model. Germany: N. p., 2017.
Web. doi:10.1140/epjc/s10052-017-4810-0.
Bagnaschi, E., Borsato, M., Sakurai, K., Buchmueller, O., Cavanaugh, R., Chobanova, V., Citron, M., Costa, J. C., De Roeck, A., Dolan, M. J., Ellis, J. R., Flächer, H., Heinemeyer, S., Isidori, G., Lucio, M., Luo, F., Santos, D. Martínez, Olive, K. A., Richards, A., & Weiglein, G. Likelihood analysis of the minimal AMSB model. Germany. https://doi.org/10.1140/epjc/s10052-017-4810-0
Bagnaschi, E., Borsato, M., Sakurai, K., Buchmueller, O., Cavanaugh, R., Chobanova, V., Citron, M., Costa, J. C., De Roeck, A., Dolan, M. J., Ellis, J. R., Flächer, H., Heinemeyer, S., Isidori, G., Lucio, M., Luo, F., Santos, D. Martínez, Olive, K. A., Richards, A., and Weiglein, G. Thu .
"Likelihood analysis of the minimal AMSB model". Germany. https://doi.org/10.1140/epjc/s10052-017-4810-0.
@article{osti_1353303,
title = {Likelihood analysis of the minimal AMSB model},
author = {Bagnaschi, E. and Borsato, M. and Sakurai, K. and Buchmueller, O. and Cavanaugh, R. and Chobanova, V. and Citron, M. and Costa, J. C. and De Roeck, A. and Dolan, M. J. and Ellis, J. R. and Flächer, H. and Heinemeyer, S. and Isidori, G. and Lucio, M. and Luo, F. and Santos, D. Martínez and Olive, K. A. and Richards, A. and Weiglein, G.},
abstractNote = {We perform a likelihood analysis of the minimal Anomaly-Mediated Supersymmetry Breaking (mAMSB) model using constraints from cosmology and accelerator experiments. We find that a wino-like or a Higgsino-like neutralino LSP, $m_{\tilde \chi^0_{1}}$, may provide the cold dark matter (DM) with similar likelihood. The upper limit on the DM density from Planck and other experiments enforces $m_{\tilde \chi^0_{1}} \lesssim 3~TeV$ after the inclusion of Sommerfeld enhancement in its annihilations. If most of the cold DM density is provided by the $\tilde \chi_0^1$, the measured value of the Higgs mass favours a limited range of $\tan \beta \sim 5$ (or for $\mu > 0$, $\tan \beta \sim 45$) but the scalar mass $m_0$ is poorly constrained. In the wino-LSP case, $m_{3/2}$ is constrained to about $900~TeV$ and ${m_{\tilde \chi^0_{1}}}$ to $2.9\pm0.1~TeV$, whereas in the Higgsino-LSP case $m_{3/2}$ has just a lower limit $\gtrsim 650TeV$ ($\gtrsim 480TeV$) and $m_{\tilde \chi^0_{1}}$ is constrained to $1.12 ~(1.13) \pm0.02~TeV$ in the $\mu>0$ ($\mu<0$) scenario. In neither case can the anomalous magnetic moment of the muon, ${(g-2)_\mu}$, be improved significantly relative to its Standard Model (SM) value, nor do flavour measurements constrain the model significantly, and there are poor prospects for discovering supersymmetric particles at the LHC, {though there} are some prospects for direct DM detection. On the other hand, if the ${m_{\tilde \chi^0_{1}}}$ contributes only a fraction of the cold DM density, {future LHC $E_T$-based searches for gluinos, squarks and heavier chargino and neutralino states as well as disappearing track searches in the wino-like LSP region will be relevant}, and interference effects enable ${\rm BR}(B_{s, d} \to \mu^+\mu^-)$ to agree with the data better than in the SM in the case of wino-like DM with $\mu > 0$.},
doi = {10.1140/epjc/s10052-017-4810-0},
journal = {European Physical Journal. C, Particles and Fields},
number = 4,
volume = 77,
place = {Germany},
year = {2017},
month = {4}
}
https://doi.org/10.1140/epjc/s10052-017-4810-0
Web of Science
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Focus point supersymmetry redux
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Charged Higgs bosons in minimal supersymmetry: updated constraints and experimental prospects
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Interpreting a 1 fb−1 ATLAS search in the minimal anomaly mediated supersymmetry breaking model
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Constraints on neutralino dark matter from LEP 2 and cosmology
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The CMSSM parameter space at large tanβ
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Prospects for electroweakino discovery at a 100 TeV hadron collider
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Relic density of wino-like dark matter in the MSSM
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Neutralino dark matter in minimal supergravity: Direct detection versus collider searches
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Varying the universality of supersymmetry-breaking contributions to MSSM Higgs boson masses
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Exploration of the MSSM with non-universal Higgs masses
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Prospects and blind spots for neutralino dark matter
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Model independent approach to focus point supersymmetry: from dark matter to collider searches
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PySLHA: a Pythonic interface to SUSY Les Houches Accord data
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Anomaly mediation in supergravity theories
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Lessons and prospects from the pMSSM after LHC Run I
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Sparticle masses from the superconformal anomaly
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Supersymmetry without prejudice
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Beyond the CMSSM without an accelerator: proton decay and direct dark matter detection
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Dark matter detection in focus point supersymmetry
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Applying exclusion likelihoods from LHC searches to extended Higgs sectors
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DARWIN dark matter WIMP search with noble liquids
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Realistic anomaly-mediated supersymmetry breaking
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Implications of LHC searches on SUSY particle spectra: The pMSSM parameter space with neutralino dark matter
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Gaugino mass without singlets
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Constraining supersymmetry
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Fitting the phenomenological MSSM
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Constraining anomaly mediated supersymmetry breaking framework via ongoing muon experiment at Brookhaven
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The MSSM parameter space with non-universal Higgs masses
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Reach of the CERN LHC for the minimal anomaly-mediated SUSY breaking model
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