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We report a new limit on a possible short range spin-dependent interaction from the precise measurement of the ratio of Larmor precession frequencies of stored ultracold neutrons and $^{199}$Hg atoms confined in the same volume. The…

We study an economical model of weakly-interacting massive particle dark matter (DM) which has spin 3/2 and interacts with the 125-GeV Higgs boson via effective scalar and pseudoscalar operators. We apply constraints on the model from the…

高能物理 - 唯象学 · 物理学 2017-12-01 Chia-Feng Chang , Xiao-Gang He , Jusak Tandean

Recently, the DAMA/LIBRA collaboration released updated results from their search for the annual modulation signal from Dark Matter (DM) scattering in the detector. Besides approximately doubling the exposure of the DAMA/LIBRA data set, the…

宇宙学与河外天体物理 · 物理学 2019-01-03 Sebastian Baum , Katherine Freese , Chris Kelso

We investigate the non-relativistic reduction of simplified models for spin 1 dark matter (DM) with the aim of identifying features in the phenomenology of DM-quark interactions which are specific to vector DM. In the case of DM-quark…

高能物理 - 唯象学 · 物理学 2019-09-04 Riccardo Catena , Kåre Fridell , Martin B. Krauss

In this work we consider a real scalar dark matter $S$ interacting only with $SU(2)_L$ singlet Up-type quarks $U_i=u_R,c_R,t_R$ via a vector-like fermion $\psi$ which has the same quantum number as $U_i$. The DM-nucleon scattering can…

高能物理 - 唯象学 · 物理学 2018-07-10 Seungwon Baek , Pyungwon Ko , Peiwen Wu

Using an effective interaction approach to describe the interactions between the dark matter particle and the light degrees of freedom of the standard model, we calculate the gamma-ray flux due to the annihilation of the dark matter into…

高能物理 - 唯象学 · 物理学 2011-06-24 Kingman Cheung , Po-Yan Tseng , Tzu-Chiang Yuan

Recent analysis of the isospin diffusion data from heavy-ion collisions based on an isospin- and momentum-dependent transport model with in-medium nucleon-nucleon cross sections has led to the extraction of a value of $L=88\pm 25$ MeV for…

核理论 · 物理学 2009-11-11 Lie-Wen Chen , Che Ming Ko , Bao-An Li

Searches for the axion and axionlike particles may hold the key to unlocking some of the deepest puzzles about our universe, such as dark matter and dark energy. Here we use the recently demonstrated spin-based amplifier to constrain such…

Scalar couplings between covalently bound nuclear spins are a ubiquitous feature in nuclear magnetic resonance (NMR) experiments, imparting valuable information to NMR spectra regarding molecular structure and conformation. Such couplings…

化学物理 · 物理学 2011-12-26 Micah Ledbetter , Giacomo Saielli , Alessandro Bagno , Nhan Tran , Michael Romalis

Low-mass (sub-eV) spin-0 dark matter particles, which form a coherently oscillating classical field $\phi = \phi_0 \cos(m_\phi t)$, can induce oscillating variations in the fundamental constants through their interactions with the Standard…

原子物理 · 物理学 2016-08-24 Y. V. Stadnik , V. V. Flambaum

We recently showed that macroscopic nuclear spin ensembles prepared in coherent spin states can dramatically enhance the interaction rates of weakly interacting cosmic relics-such as dark matter and the cosmic neutrino background-through…

高能物理 - 唯象学 · 物理学 2026-05-01 Marios Galanis , Onur Hosten , Asimina Arvanitaki , Savas Dimopoulos

We study the spin-dependence of Dark Matter (DM) particles which interact gravitationally with the Standard Model (SM) in an extra-dimensional Randall-Sundrum scenario. We assume that both the Dark Matter and the Standard Model are confined…

高能物理 - 唯象学 · 物理学 2021-03-12 Miguel G. Folgado , Andrea Donini , Nuria Rius

We analyze a universe filled with interacting dark matter, a scalar field accommodated as dark radiation along with dark energy plus a decoupled radiation term within the framework of spatially flat Friedmann-Robertson-Walker (FRW)…

广义相对论与量子宇宙学 · 物理学 2013-08-06 Luis P. Chimento , Martín G. Richarte

We calculate the spin-independent scattering cross section for direct detection that results from the electromagnetic polarizability of a composite scalar baryon dark matter candidate -- "Stealth Dark Matter", that is based on a dark SU(4)…

The LUX collaboration new results advance the search for dark matter candidate particles in the 4 GeV/c^2 and higher mass range, with a maximal spin-independent 90% C.L. limit of 2 x 10^-46 cm^2 at 50 GeV/c^2 for its 332 live-day run,…

宇宙学与河外天体物理 · 物理学 2019-08-15 M. Szydagis

We study the indirect detection of dark matter through neutrino flux from their annihilation in the center of the Sun, in a class of theories where the dark matter-nucleon spin-independent interactions break the isospin symmetry. We point…

高能物理 - 唯象学 · 物理学 2013-05-29 Shao-Long Chen , Yue Zhang

Recently, the CoGeNT collaboration presented a positive signal for an annual modulation in their data set. In light of the long standing annual modulation signal in DAMA/LIBRA, we analyze the compatibility of both of these signal within the…

高能物理 - 唯象学 · 物理学 2012-06-26 Thomas Schwetz , Jure Zupan

Direct searches for dark matter (DM) by the LUX and PandaX-II Collaborations employing xenon-based detectors have recently come up with the most stringent limits to date on the spin-independent elastic scattering of DM off nucleons. For…

高能物理 - 唯象学 · 物理学 2016-12-20 Xiao-Gang He , Jusak Tandean

In our work on the development of a model-independent data analysis method for estimating the spin-independent (SI) scalar coupling of Weakly Interacting Massive Particles (WIMPs) on nucleons by using measured recoil energies from direct…

高能物理 - 唯象学 · 物理学 2015-03-19 Chung-Lin Shan

Indirect detection is one of the most powerful methods to search for annihilating dark matter. In this work, we investigate the impact of non-perturbative effects in the indirect detection of dark matter. For this purpose we utilize a…

高能物理 - 唯象学 · 物理学 2024-03-29 Simone Biondini , Julian Bollig , Stefan Vogl