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In our work on the development of model-independent data analysis methods for determining ratios between different couplings/cross sections of Weakly Interacting Massive Particles (WIMPs) by using measured recoil energies from direct Dark…

高能物理 - 唯象学 · 物理学 2011-08-17 Chung-Lin Shan

Spin-dependent WIMP searches have traditionally presented results within an odd group approximation and by suppressing one of the spin-dependent interaction cross sections. We here elaborate on a model-independent analysis in which…

高能物理 - 唯象学 · 物理学 2008-11-26 F. Giuliani , TA Girard

We report results of a 14.1 kgd measurement with 15 superheated droplet detectors of total active mass 0.208 kg, comprising the first stage of a 30 kgd Phase II experiment. In combination with the results of the neutron-spin sensitive…

Weakly interacting massive particles (WIMPs) are amongst the most interesting dark matter (DM) candidates. Many DM candidates naturally arise in theories beyond the standard model (SM) of particle physics, like weak-scale supersymmetry…

宇宙学与河外天体物理 · 物理学 2015-03-17 Yashar Akrami , Christopher Savage , Pat Scott , Jan Conrad , Joakim Edsjö

We demonstrate a new type of analysis for the DRIFT-IId directional dark matter detector using a machine learning algorithm called a Random Forest Classifier. The analysis labels events as signal or background based on a series of selection…

We revisit the expected sensitivity of large-scale xenon detectors to Weakly Interacting Massive Particles (WIMPs). Assuming current primary noise sources can be mitigated, we find that with the present discrimination power between nuclear…

高能物理 - 唯象学 · 物理学 2024-10-04 Itay M. Bloch , Salvatore Bottaro , Diego Redigolo , Ludovico Vittorio

We present a halo-independent analysis of direct detection data on "light WIMPs," i.e. weakly interacting massive particles with mass close to or below 10 GeV/c^2. We include new results from silicon CDMS detectors (bounds and excess…

高能物理 - 唯象学 · 物理学 2015-06-15 Eugenio Del Nobile , Graciela B. Gelmini , Paolo Gondolo , Ji-Haeng Huh

Distinguishing a dark matter interaction from an astrophysical neutrino-induced interaction will be major challenge for future direct dark matter searches. In this paper, we consider this issue within non-relativistic Effective Field Theory…

高能物理 - 唯象学 · 物理学 2016-04-13 James B. Dent , Bhaskar Dutta , Jayden L. Newstead , Louis E. Strigari

We analyse the constraints on models of WIMP Dark Matter that can be derived from upper bounds on the "monojet" cross section at the LHC. These constraints were originally interpreted in the context of an effective field theory (EFT) where…

高能物理 - 唯象学 · 物理学 2018-09-19 Swasti Belwal , Manuel Drees , Jong Soo Kim

The Effective Field Theory (EFT) approach is widely used in the search for possible deviations from the predictions of the Standard Model. Such an approximation of possible BSM physics is valid up to a certain levels of energy scale and…

高能物理 - 唯象学 · 物理学 2020-11-24 E. E. Boos , V. E. Bunichev , L. V. Dudko , M. A. Perfilov , G. A. Vorotnikov

In the context of the effective field theory of dark energy (EFT) we perform agnostic explorations of Horndeski gravity. We choose two parametrizations for the free EFT functions, namely a power law and a dark energy density-like behaviour…

宇宙学与河外天体物理 · 物理学 2019-04-03 Noemi Frusciante , Simone Peirone , Santiago Casas , Nelson A. Lima

Near a critical value of the wino mass where there is a zero-energy S-wave resonance at the neutral-wino-pair threshold, low-energy winos can be described by a zero-range effective field theory (ZREFT) in which the winos interact…

高能物理 - 唯象学 · 物理学 2018-02-28 Eric Braaten , Evan Johnson , Hong Zhang

We formulate point-particle effective field theory (PPEFT) for relativistic spin-half fermions interacting with a massive, charged finite-sized source using a first-quantized effective field theory for the heavy compact object and a…

高能物理 - 唯象学 · 物理学 2017-09-20 C. P. Burgess , Peter Hayman , Markus Rummel , Laszlo Zalavari

Recent results from the PICASSO dark matter search experiment at SNOLAB are reported. These results were obtained using a subset of 10 detectors with a total target mass of 0.72 kg of 19F and an exposure of 114 kgd. The low backgrounds in…

Given the absence of direct evidence for new resonances beyond the Standard Model (BSM) at the Large Hadron Collider (LHC) so far, a complementary strategy to search for new physics in an indirect way is provided by the Standard Model…

高能物理 - 唯象学 · 物理学 2025-01-16 Jaco ter Hoeve

We enumerate the set of simplified models which match onto the complete set of gauge invariant effective operators up to dimension six describing interactions of a singlet-like Majorana fermion dark matter with the standard model. Tree…

高能物理 - 唯象学 · 物理学 2016-10-05 Shigeki Matsumoto , Satyanarayan Mukhopadhyay , Yue-Lin Sming Tsai

We study an effective field theory which includes the Standard Model extended by a Dark Sector consisting of two fermionic $SU(2)_{L}$-doublets. A $Z_2$ parity guarantees that, after electroweak symmetry breaking, the lightest neutral…

高能物理 - 唯象学 · 物理学 2017-04-03 Dimitrios Karamitros

In this work, we study the renormalization-group evolution of parameters in the three-dimensional effective field theory (3D EFT) that describes the thermally driven electroweak phase transition of the Higgs field. We consider tree-level…

高能物理 - 唯象学 · 物理学 2026-03-18 Mikael Chala , Andrii Dashko , Guilherme Guedes

We present the results of a search for WIMPs from the commissioning run of the PandaX-II experiment located at the China Jinping underground Laboratory. A WIMP search data set with an exposure of 306$\times$19.1 kg-day was taken, while its…

Weakly Interacting Massive Particles (WIMPs) are the candidates of dark matter in our universe. Up to now any direct interaction of WIMP with nuclei has not been observed yet. The exclusion limits of the spin-independent cross section of…