Search for Low-Mass Weakly Interacting Massive Particles Using Voltage-Assisted Calorimetric Ionization Detection in the SuperCDMS Experiment

Agnese, R.; Anderson, A. J.; Asai, M.; Balakishiyeva, D.; Thakur, R. Basu; Bauer, D. A.; Billard, J.; Borgland, A. W.; Bowles, M. A.; Brandt, D.; Brink, P. L.; Bunker, R.; Cabrera, B.; Caldwell, D. O.; Cerdeño, David G.; Chagani, H.; Cooley, J.; Cornell, B.; Crewdson, C. H.; Cushman, P.; Daal, M.; Stefano, P. C. F. Di; Doughty, T.; Esteban, Luis; Fallows, S.; Figueroa‐Feliciano, E.; Godfrey, G.; Golwala, S. R.; Hall, J.; Harris, H. R.; Hertel, S. A.; Höfer, T.; Holmgren, D.; Hsu, L.; Huber, M. E.; Jastram, A.; Kamaev, O.; Kara, Burhan; Kelsey, M. H.; Kennedy, A.; Kiveni, M.; Koch, K.; Loer, B.; Asamar, E. Lopez; Mahapatra, R.; Mandic, V.; Martínez, C. Moreno; McCarthy, K. A.; Mirabolfathi, N.; Moffatt, R. A.; Moore, David C.; Nadeau, P.; Nelson, Robert H.; Page, K.; Partridge, R.; Pepin, M.; Phipps, A.; Prasad, K.; Pyle, M.; Qiu, H.; Rau, W.; Redl, P.; Reisetter, A.; Ricci, Y.; Saab, T.; Sadoulet, B.; Sander, J.; Schneck, K.; Schnee, R. W.; Scorza, S.; Serfass, B.; Shank, B.; Speller, D.; Villano, A. N.; Welliver, B.; Wright, D. H.; Yellin, S.; Yen, J. J.; Young, B. A.; Zhang, J.

doi:10.1103/physrevlett.112.041302

Cited by 263 publications

(253 citation statements)

References 65 publications

Supporting

Mentioning

247

Contrasting

Order By: Relevance

“…ments which search for dark-matter particles via their direct interaction with the material of a detector [34][35][36][37][38][39][40][41][42]. The paper is organized as follows.…”

Section: Jhep01(2016)172mentioning

confidence: 99%

Search for invisible decays of a Higgs boson using vector-boson fusion in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector

Aad¹,

Abbott²,

Abdallah³

et al. 2016

J. High Energ. Phys.

Self Cite

View full text Add to dashboard Cite

A search for a Higgs boson produced via vector-boson fusion and decaying into invisible particles is presented, using 20.3 fb −1 of proton-proton collision data at a centreof-mass energy of 8 TeV recorded by the ATLAS detector at the LHC. For a Higgs boson with a mass of 125 GeV, assuming the Standard Model production cross section, an upper bound of 0.28 is set on the branching fraction of H → invisible at 95% confidence level, where the expected upper limit is 0.31. The results are interpreted in models of Higgsportal dark matter where the branching fraction limit is converted into upper bounds on the dark-matter-nucleon scattering cross section as a function of the dark-matter particle mass, and compared to results from the direct dark-matter detection experiments. The ATLAS collaboration 28 IntroductionAstrophysical observations provide strong evidence for dark matter (see ref.[1] and the references therein). Dark matter (DM) may be explained by the existence of weakly interacting massive particles (WIMP) [2,3]. The observed Higgs boson with a mass of about 125 GeV [4,5] might decay to dark matter or neutral long-lived massive particles [6][7][8][9][10], provided this decay is kinematically allowed. This is referred to as an invisible decay of the Higgs boson [11][12][13][14][15][16][17][18]. This paper presents a search for invisible decays of a Higgs boson produced via the vector-boson fusion (VBF) process. In the Standard Model (SM), the process H → ZZ → 4ν is an invisible decay of the Higgs boson, but the branching fraction (BF) is 0.1% [19, 20], which is below the sensitivity of the search presented in this paper. In addition to the VBF Higgs boson signal itself, there is a contribution to Higgs boson production from the gluon fusion plus 2-jets (ggF+2-jets) process, which is smaller than the VBF signal in the phase space of interest in this search. The ggF+2-jets contribution is treated as signal. The search is performed with a dataset corresponding to an integrated luminosity of 20.3 fb −1 of proton-proton collisions at √ s = 8 TeV, recorded by the ATLAS detector at the LHC [21].-1 - JHEP01(2016)172The signature of this process is two jets with a large separation in pseudorapidity 1 and large missing transverse momentum 2 E miss T . The VBF process, in its most extreme topology (high dijet invariant mass for example), offers strong rejection against the QCDinitiated (W, Z)+jets (V +jets) backgrounds. The resulting selection has a significantly better signal-to-background ratio than selections targeting the ggF process.The CMS Collaboration obtained an upper bound of 58% on the branching fraction of invisible Higgs boson decays using a combination of the VBF and ZH production modes [22]. Weaker limits were obtained using the Z(→ )H + E miss T signature by both the ATLAS and CMS collaborations [22, 23], giving upper limits at 95% CL of 75% and 83% on the branching fraction of invisible Higgs boson decays, respectively. By combining the searches in the Z(→ )H and Z(→ bb)H channels, CMS obtained...

show abstract

“…ments which search for dark-matter particles via their direct interaction with the material of a detector [34][35][36][37][38][39][40][41][42]. The paper is organized as follows.…”

Section: Jhep01(2016)172mentioning

confidence: 99%

Search for invisible decays of a Higgs boson using vector-boson fusion in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector

Aad¹,

Abbott²,

Abdallah³

et al. 2016

J. High Energ. Phys.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Accelerator and direct detection experiments are most sensitive to DM particles with mass below a few hundred GeV. Positive results for signals of ∼10 GeV DM reported by some direct-searches experiments [7][8][9][10] could not be confirmed by other detectors, and are in tension with results obtained by XENON100 [11,12] and LUX [13]. On the other hand, the rather heavy Higgs boson [14] and the lack of indications of new physics at the Large Hadron Collider, strongly constrain the existence of a WIMP at the electroweak scale.…”

Section: Introductionmentioning

confidence: 99%

Optimized Dark Matter Searches in Deep Observations of Segue 1 with MAGIC

Aleksić

2016

Springer Theses

View full text Add to dashboard Cite

Abstract. We present the results of stereoscopic observations of the satellite galaxy Segue 1 with the MAGIC Telescopes, carried out between 2011 and 2013. With almost 160 hours of good-quality data, this is the deepest observational campaign on any dwarf galaxy performed so far in the very high energy range of the electromagnetic spectrum. We search this large data sample for signals of dark matter particles in the mass range between 100 GeV and 20 TeV. For this we use the full likelihood analysis method, which provides optimal sensitivity to characteristic gamma-ray spectral features, like those expected from dark matter annihilation or decay. In particular, we focus our search on gamma-rays produced from different final state Standard Model particles, annihilation with internal bremsstrahlung, monochromatic lines and box-shaped signals. Our results represent the most stringent constraints to the annihilation cross-section or decay lifetime obtained from observations of satellite galaxies, for masses above few hundred GeV. In particular, our strongest limit (95% confidence level) corresponds to a ∼500 GeV dark matter particle annihilating into τ + τ − , and is of order σ ann v ≃ 1.2×10 −24 cm 3 s −1 -a factor ∼40 above the σ ann v thermal value.

show abstract

“…Black solid, blue dashed, and blue solid lines represent the exclusion contours from LUX [11], CDMSlite [15], and the recent SuperCDMS [16] experiments, respectively. The red point represent the benchmark point used in our analysis.…”

Section: Direct Detectionmentioning

confidence: 99%

“…On the other hand, experiments such as XENON [9,10], LUX [11], SIMPLE [12], CDMS [13,14] and SuperCDMS [15,16] have not found any excess of events that can be interpreted as signals from DM. In particular, the LUX experiment has probed the relevant region of parameters at the highest level of sensitivity and excluded most regions favored by the possible signals of light DM.…”

Section: Introductionmentioning

confidence: 99%

Isospin-violating dark matter with colored mediators

Hamaguchi

Liew

Moroi

et al. 2014

J. High Energ. Phys.

View full text Add to dashboard Cite

In light of positive signals reported by the CDMS-II Si experiment and the recent results of the LUX and SuperCDMS experiments, we study isospin-violating dark matter scenarios assuming that the interaction of the dark matter is mediated by colored particles. We investigate the phenomenology of the model, including collider searches, flavor and CP phenomenology. A minimal possible scenario includes scalar dark matter and new vector-like colored fermions with masses of O(1) TeV as mediators. Such a scenario may be probed at the 14 TeV LHC, while flavor and CP constraints are stringent and severe tuning in the couplings is unavoidable. We also found that, as an explanation of the CDMS-II Si signal, isospin-violating fermionic dark matter models with colored scalar mediators are disfavored by the LHC constraints.

show abstract

Search for Low-Mass Weakly Interacting Massive Particles Using Voltage-Assisted Calorimetric Ionization Detection in the SuperCDMS Experiment

Cited by 263 publications

References 65 publications

Search for invisible decays of a Higgs boson using vector-boson fusion in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector

Search for invisible decays of a Higgs boson using vector-boson fusion in pp collisions at s = 8 $$ \sqrt{s}=8 $$ TeV with the ATLAS detector

Optimized Dark Matter Searches in Deep Observations of Segue 1 with MAGIC

Isospin-violating dark matter with colored mediators

Contact Info

Product

Resources

About