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We study the production of primordial black hole (PBH) dark matter in the case when the Standard Model Higgs coupled non-minimally to gravity is the inflaton. PBHs can be produced if the Higgs potential has a near-critical point due to…

宇宙学与河外天体物理 · 物理学 2019-01-23 Syksy Rasanen , Eemeli Tomberg

The Coleman-Weinberg mechanism can realise different phases of dynamical symmetry breaking. In each phase a combination of scalars, corresponding to the pseudo-Goldstone boson of scale invariance, has a loop-suppressed mass. We show that…

高能物理 - 唯象学 · 物理学 2021-03-24 Kristjan Kannike , Luca Marzola , Martti Raidal , Alessandro Strumia

We investigate properties of a classifier applied to the measurements of the CP state of the Higgs boson in $H\rightarrow\tau\tau$ decays. The problem is framed as binary classifier applied to individual instances. Then the prior knowledge…

机器学习 · 计算机科学 2018-09-07 P. Bialas , D. Nemeth , E. Richter-Wąs

We consider the classically scale invariant Higgs-dilaton model of dynamical symmetry breaking extended with an extra scalar field that plays the role of dark matter. The Higgs boson is light near a critical boundary between different…

高能物理 - 唯象学 · 物理学 2022-06-01 Kristjan Kannike , Niko Koivunen , Aleksei Kubarski , Luca Marzola , Martti Raidal , Alessandro Strumia , Venno Vipp

We study an effective theory beyond the standard model (SM) where either of two additional gauge singlets, a Majorana fermion and a real scalar, constitutes all or some fraction of dark matter. In particular, we focus on the masses of the…

高能物理 - 唯象学 · 物理学 2019-05-22 Wen Yin

Multivariance of geometry means that at the point $P_{0}$ there exist many vectors $P_{0}P_{1}$, $\P_{0}P_{2}$,... which are equivalent (equal) to the vector $\Q_{0}Q_{1}$ at the point $Q_{0}$, but they are not equivalent between…

综合物理 · 物理学 2007-12-11 Yuri A. Rylov

We consider a classically scale invariant version of the Standard Model, extended by an extra dark $SU(2)_X$ gauge group. Apart from the dark gauge bosons and a dark scalar doublet which is coupled to the Standard Model Higgs through a…

高能物理 - 唯象学 · 物理学 2016-02-03 Alexandros Karam , Kyriakos Tamvakis

The Pearson-Matthews correlation coefficient (usually abbreviated MCC) is considered to be one of the most useful metrics for the performance of a binary classification or hypothesis testing method (for the sake of conciseness we will use…

信号处理 · 电气工程与系统科学 2023-05-11 Petre Stoica , Prabhu Babu

The idea of this work is to investigate the constraints on the dark matter (DM) allowed parameter space from high scale validity (absolute stability of Higgs vacuum and perturbativity) in presence of multi particle dark sector and heavy…

高能物理 - 唯象学 · 物理学 2020-04-22 Subhaditya Bhattacharya , Purusottam Ghosh , Abhijit Kumar Saha , Arunansu Sil

The observed Higgs mass indicates that the Standard Model can be valid up to near the Planck scale $M_\text{P}$. Within this framework, it is important to examine how little modification is necessary to fit the recent experimental results…

高能物理 - 唯象学 · 物理学 2021-01-25 Yuta Hamada , Hikaru Kawai , Yukari Nakanishi , Kin-ya Oda

Gravitational positivity bounds provide consistency conditions for effective field theories with gravity. They turn out to be phenomenologically useful by providing lower bounds in parameters of new physics beyond the Standard Models (BSM).…

高能物理 - 唯象学 · 物理学 2025-01-24 Suro Kim , Pyungwon Ko

We investigate the sensitivity to weakly interacting scalar dark matter from future determination of electroweak oblique parameters in the Circular Electron-Positron Collider (CEPC) project. As illuminating examples, three dark matter…

高能物理 - 唯象学 · 物理学 2017-09-19 Chengfeng Cai , Zhao-Huan Yu , Hong-Hao Zhang

Principal Component Analysis (PCA) is applied to the residuals of six widely used nuclear mass models to uncover systematic deviations and identify missing physical effects in theoretical nuclear mass predictions. By analyzing the principal…

核理论 · 物理学 2026-03-03 Y. Y. Huang , X. H. Wu

We perform a Markov Chain Monte Carlo (MCMC) analysis of a simple yet generic multifield inflation model characterized by two scalar fields coupled to each other and nonminimally coupled to gravity, fit to Planck 2018 cosmic microwave…

宇宙学与河外天体物理 · 物理学 2023-08-04 Wenzer Qin , Sarah R. Geller , Shyam Balaji , Evan McDonough , David I. Kaiser

An extension of the Standard Model with three right-handed neutrinos and a simple invisible axion model can account for all experimentally confirmed signals of new physics (neutrino oscillations, dark matter and baryon asymmetry) in…

高能物理 - 唯象学 · 物理学 2019-02-06 Alberto Salvio

The principle of maximum conformality (PMC) provides a convenient way for setting the optimal renormalization scales for high-energy processes, which can eliminate the conventional renormalization scale error via an order-by-order manner.…

高能物理 - 唯象学 · 物理学 2014-06-05 Sheng-Quan Wang , Xing-Gang Wu , Xu-Chang Zheng , Gu Chen , Jian-Ming Shen

We explore the possibility that both the weak scale and the thermal relic dark matter abundance are environmentally selected in a multiverse. An underlying supersymmetric theory containing the states of the MSSM and singlets, with…

高能物理 - 唯象学 · 物理学 2010-05-25 Gilly Elor , Hock-Seng Goh , Lawrence J. Hall , Piyush Kumar , Yasunori Nomura

We explore an extension of the Inert Doublet Model which allows also for CP violation in the Higgs sector. This necessitates two non-inert doublets. The lightest neutral scalar of the inert doublet is a candidate for dark matter. Scanning…

高能物理 - 唯象学 · 物理学 2009-09-24 B. Grzadkowski , O. M. Ogreid , P. Osland

In this review we present a theory of cosmological constant and Dark Energy (DE), based on the topological structure of the vacuum. The Multiple Point Principle (MPP) is reviewed. It demonstrates the existence of the two vacua into the SM.…

高能物理 - 唯象学 · 物理学 2017-03-16 B. G. Sidharth , A. Das , C. R. Das , L. V. Laperashvili , H. B. Nielsen

This review is devoted to Anti-Grand Unification and to the Multiple Point Model solution of problems of the unification of gauge interactions. According to this model, near the Planck scale there exists a Multiple Critical Point (MCP),…

高能物理 - 理论 · 物理学 2007-05-23 L. Laperashvili