New Particles Working Group Report of the Snowmass 2013 Community Summer Study

Gershtein, Y.; Luty, Markus A.; Narain, M.; Wang, L. T.; Whiteson, D.; Agashe, Kaustubh; Apanasevich, L.; Artoni, G.; Avetisyan, A.; Baer, Howard; Bartels, Christoph; Bauer, Martin; Bergé, Daniel; Berggren, M.; Bhattacharya, S.; Black, K. M.; Bose, T.; Brau, J. E.; Brock, R.; Brownson, E.; Cahill-Rowley, Matthew; Çakir, Adalet; Chaus, A.; Cohen, Timothy; Coleppa, Baradhwaj; Cotta, Randel; Craig, Nathaniel; Dobrescu, Bogdan A.; Duggan, D.; Essig, Rouven; Evans, J.A.; Drlica-Wagner, A.; Funk, Sebastian; George, Jimin; Goertz, Florian; Golling, T.; Han, Tao; Haas, A.; Hance, M.; Hayden, D.; Heintz, U.; Henrichs, A.; Hewett, JoAnne L.; Hirschauer, J.; Howe, Kimberly; Ismail, Ameen; Kaadze, K.; Kats, Yevgeny; Kling, Felix; Kolchmeyer, D.; Krücker, D.; Kong, Ki-Sik; Kumar, Abhishek; Kribs, Graham D.; Langacker, Paul; Lath, A.; Lee, S. J.; List, Jenny; Lin, Tongyan; Linssen, L.; Liu, T.; Liu, Z.; Lobanov, A.; Loyal, Joshua; Martin, A.; Melzer-Pellmann, Isabell; Nojiri, Mihoko M.; Padhi, S.; Parashar, N.; Penning, B.; Perelstein, Maxim; Peskin, Michael E.; Pierce, Aaron; Porod, W.; Potter, C. T.; Rizzo, Thomas G.; Sciolla, G.; Stupak, J.; Su, Shi-Quan; Tait, Tim M. P.; Tanabe, T.; Thomas, B.; Thomas, S.; Upadhyay, Sumit Kumar; Varelas, N.; Varnes, E. W.; Vecchi, Luca; Venturini, A.; Vormwald, B.; Wacker, Jochen; Walker, M.; Wood, M.; Yu, Felix; Zhou, N.

doi:10.48550/arxiv.1311.0299

Cited by 22 publications

(45 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although the details of the sparticle spectrum require a complete model for supersymmetry breaking and mediation, it is clear that the stops and higgsinos can be significantly decoupled in the SUSY twin Higgs without increasing the tuning of the weak scale. Percent-level naturalness is consistent with stops at 3.5 TeV and higgsinos at 1 TeV, well beyond the reach of the 13/14 TeV LHC [22]. In general, radiative corrections tie the mass of the gluino to within a factor of 2 of the stop mass, and gluinos in the range of 3.5-7 TeV likewise lie well beyond the reach of the 13/14 TeV LHC, although such heavy spectra would likely be accessible at an LHC energy upgrade [23].…”

Section: Phenomenologysupporting

confidence: 55%

Doubling down on naturalness with a supersymmetric twin Higgs

Craig

Howe

2014

J. High Energ. Phys.

128

177

View full text Add to dashboard Cite

Abstract:We show that naturalness of the weak scale can be comfortably reconciled with both LHC null results and observed Higgs properties provided the double protection of supersymmetry and the twin Higgs mechanism. This double protection radically alters conventional signs of naturalness at the LHC while respecting gauge coupling unification and precision electroweak limits. We find the measured Higgs mass, couplings, and percentlevel naturalness of the weak scale are compatible with stops at ∼ 3.5 TeV and higgsinos at ∼ 1 TeV. The primary signs of naturalness in this scenario include modifications of Higgs couplings, a modest invisible Higgs width, resonant Higgs pair production, and an invisibly-decaying heavy Higgs.

show abstract

Section: Phenomenologysupporting

confidence: 55%

Doubling down on naturalness with a supersymmetric twin Higgs

Craig

Howe

2014

J. High Energ. Phys.

128

177

View full text Add to dashboard Cite

show abstract

“…Indirect-detection, direct-detection, and production (i.e., collider) searches for DM have different advantages. The complementarity between the methods has been reviewed in a number of recent works [e.g., [296][297][298]. As discussed in §2, indirect-detection searches measure the rate of DM annihilation (or decay) into Standard Model particles.…”

Section: Role Of Indirect-detection Searches For Dark Mattermentioning

confidence: 99%

“…There is broad consensus that the three approaches probe different and complementary regions of the DM parameter space [296][297][298]. Because they measure very different observables, direct comparisons between them depend on a number of assumptions about the nature of DM particles and their interactions.…”

Section: Role Of Indirect-detection Searches For Dark Mattermentioning

confidence: 99%

Sensitivity projections for dark matter searches with the Fermi large area telescope

et al. 2016

Self Cite

View full text Add to dashboard Cite

The nature of dark matter is a longstanding enigma of physics; it may consist of particles beyond the Standard Model that are still elusive to experiments. Among indirect search techniques, which look for stable products from the annihilation or decay of dark matter particles, or from axions coupling to highenergy photons, observations of the γ-ray sky have come to prominence over the last few years, because of the excellent sensitivity of the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope mission. The LAT energy range from 20 MeV to above 300 GeV is particularly well suited for searching for products of the interactions of dark matter particles. In this report we describe methods used to search for evidence of dark matter with the LAT, and review the status of searches performed with up to six years of LAT data. We also discuss the factors that determine the sensitivities of these searches, including the magnitudes of the signals and the relevant backgrounds, considering both statistical and systematic uncertainties. We project the expected sensitivities of each search method for 10 and 15 years of LAT data taking. In particular, we find that the sensitivity of searches targeting dwarf galaxies, which provide the best limits currently, will improve faster than the square root of observing time. Current LAT limits for dwarf galaxies using six years of data reach the thermal relic level for masses up to 120 GeV for the bb annihilation channel for reasonable dark matter density profiles. With projected discoveries of additional dwarfs, these limits could extend to about 250 GeV. With as much as 15 years of LAT data these searches would be sensitive to dark 1 arXiv:1605.02016v2 [astro-ph.HE] 13 May 2016 matter annihilations at the thermal relic cross section for masses to greater than 400 GeV (200 GeV) in the bb (τ + τ − ) annihilation channels.

show abstract

“…Basic aspects of formalism may be found in the review of Jungman, Griest and Kamionkowski [8]. However, the last few years have witnessed the discovery and mass measurement for a SM-like Higgs boson [28,29], new constraints on the mass scale of particles beyond the SM [30], and important computational advances in lattice QCD [31,32]. A complete description of DM-SM interactions is now possible in many SM extensions but demands the systematic treatment of QCD effects and uncertainties, including the consideration of loop amplitudes that are typically neglected in the m W ∼ M regime, but which contribute at leading order in the general case.…”

Section: Introductionmentioning

confidence: 99%

Standard model anatomy of WIMP dark matter direct detection. I. Weak-scale matching

2015

View full text Add to dashboard Cite

We present formalism necessary to determine weak-scale matching coefficients in the computation of scattering cross sections for putative dark matter candidates interacting with the Standard Model. Particular attention is paid to the heavy-particle limit. A consistent renormalization scheme in the presence of nontrivial residual masses is implemented. Two-loop diagrams appearing in the matching to gluon operators are evaluated. Details are given for the computation of matching coefficients in the universal limit of WIMP-nucleon scattering for pure states of arbitrary quantum numbers, and for singlet-doublet and doublet-triplet mixed states.

show abstract

New Particles Working Group Report of the Snowmass 2013 Community Summer Study

Cited by 22 publications

References 7 publications

Doubling down on naturalness with a supersymmetric twin Higgs

Doubling down on naturalness with a supersymmetric twin Higgs

Sensitivity projections for dark matter searches with the Fermi large area telescope

Standard model anatomy of WIMP dark matter direct detection. I. Weak-scale matching

Contact Info

Product

Resources

About