Zobrazeno 1 - 10
of 693
pro vyhledávání: '"Tye S"'
Autor:
Luu, Hoang Nhan, Mocz, Philip, Vogelsberger, Mark, Pozo, Alvaro, Broadhurst, Tom, Tye, S. -H. Henry, Liu, Tao, Fung, Leo W. H., Smoot, George F., Emami, Razieh, Hernquist, Lars
Fuzzy dark matter (FDM) is a compelling candidate for dark matter, offering a natural explanation for the structure of diffuse low-mass haloes. However, the canonical FDM model with a mass of $10^{-22}~{\rm eV}$ encounters challenges in reproducing t
Externí odkaz:
http://arxiv.org/abs/2408.00827
Autor:
Qiu, Yu-Cheng, Tye, S. -H. Henry
Publikováno v:
Phys. Rev. D 108, 113004, 2023
The baryon-number violation (BV) happens in the standard electroweak model. According to the Bloch-wave picture, the BV event rate shall be significantly enhanced when the proton-proton collision center of mass (COM) energy goes beyond the sphaleron
Externí odkaz:
http://arxiv.org/abs/2309.07410
Autor:
Luu, Hoang Nhan, Mocz, Philip, Vogelsberger, Mark, May, Simon, Borrow, Josh, Tye, S. -H. Henry, Broadhurst, Tom
Dark matter as scalar particles consisting of multiple species is well motivated in string theory where axion fields are ubiquitous. A two-field fuzzy dark matter (FDM) model features two species of ultralight axion particles with different masses, $
Externí odkaz:
http://arxiv.org/abs/2309.05694
Autor:
Qiu, Yu-Cheng, Tye, S. -H. Henry
In a general phenomenological model with local supersymmetry, the amount of massive gravitinos produced in early universe tends to violate the known dark matter density bound by many orders of magnitude. In the brane world scenario in Type IIB string
Externí odkaz:
http://arxiv.org/abs/2207.03144
The $\Lambda$CDM model provides an excellent fit to the CMB data. However, a statistically significant tension emerges when its determination of the Hubble constant $H_0$ is compared to the local distance-redshift measurements. The axi-Higgs model, w
Externí odkaz:
http://arxiv.org/abs/2105.01631
Publikováno v:
JCAP 08 (2021) 057
If the electroweak Higgs vacuum expectation value $v$ in early universe is $\sim 1 \%$ higher than its present value $v_0=246$ GeV, the $^7$Li puzzle in BBN and the CMB/$\Lambda$CDM tension with late-universe measurements on Hubble parameter are miti
Externí odkaz:
http://arxiv.org/abs/2102.11257
Guided by the naturalness criterion for an exponentially small cosmological constant, we present a string theory motivated 4-dimensional $\mathcal{N}=1$ non-linear supergravity model (or its linear version with a nilpotent superfield) with spontaneou
Externí odkaz:
http://arxiv.org/abs/2010.10089
Autor:
Qiu, Yu-Cheng, Tye, S. -H. Henry
Publikováno v:
JHEP01(2021)117
String theory has no parameter except the string scale $M_S$, so the Planck scale $M_\text{Pl}$, the supersymmetry-breaking scale, the EW scale $m_\text{EW}$ as well as the vacuum energy density (cosmological constant) $\Lambda$ are to be determined
Externí odkaz:
http://arxiv.org/abs/2006.16620
We propose that the periodic fast radio bursts of FRB 180916.J0158+65 are sourced by axion emission (mass $m_{a} \sim 10^{-14}$ eV) from cosmic superstrings. Some of the emitted axions are converted to photons by magnetic fields as they travel along
Externí odkaz:
http://arxiv.org/abs/2003.07275
Publikováno v:
Phys. Rev. D 101, 083012 (2020)
The large dark cores of common dwarf galaxies are unexplained by the standard heavy particle interpretation of dark matter. This puzzle is exacerbated by the discovery of a very large but barely visible, dark matter dominated galaxy Antlia II orbitin
Externí odkaz:
http://arxiv.org/abs/1902.10488