Results 21 to 30 of about 3,185 (219)

Topological Equivalence Theorem and Double-Copy for Chern–Simons Scattering Amplitudes

open access: yesResearch, 2023
We study the mechanism of topological mass generation for 3-dimensional Chern–Simons gauge theories and propose a brand-new topological equivalence theorem to connect scattering amplitudes of the physical gauge boson states to that of the transverse ...
Yan-Feng Hang, Hong-Jian He, Cong Shen
doaj   +1 more source

Weak decays of doubly heavy baryons: multi-body decay channels

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
The newly-discovered $$\Xi _{cc}^{++}$$ Ξcc++ decays into the $$ \Lambda _{c}^+ K^-\pi ^+\pi ^+$$ Λc+K-π+π+ , but the experimental data has indicated that this decay is not saturated by any two-body intermediate state.
Yu-Ji Shi, Wei Wang, Ye Xing, Ji Xu
doaj   +1 more source

Radiative decays of the Higgs boson to a pair of fermions

open access: yesJournal of High Energy Physics, 2017
We revisit the radiative decays of the Higgs boson to a fermion pair h → f f ¯ γ $$ h\to f\overline{f}\gamma $$ where f denotes a fermion in the Standard Model (SM). We include the chirality-flipping diagrams via the Yukawa couplings at the order O y f 2
Tao Han, Xing Wang
doaj   +1 more source

Reconstruction of the event vertex in the PandaX-III experiment with convolution neural network

open access: yesJournal of High Energy Physics, 2023
The PandaX-III experiment uses a high-pressure xenon gaseous time projection chamber (TPC) to search for the neutrinoless double beta decay (0νββ) of 136Xe. The absence of the vertex position in the electron drift direction at which the event takes place
Tao Li   +6 more
doaj   +1 more source

Erratum: Planck 2018 results: VI. Cosmological parameters (Astronomy and Astrophysics (2020) 641 (A6) DOI: 10.1051/0004-6361/201833910)

open access: yes, 2021
In the original version, the bounds given in Eqs. (87a) and (87b) on the contribution to the early-time optical depth, (15,30), contained a numerical error in deriving the 95th percentile from the Monte Carlo samples. The corrected 95% upper bounds are: τ(15,30) < 0:018 (lowE, flat τ(15, 30), FlexKnot), (1) τ(15, 30) < 0:023 (lowE, flat knot, FlexKnot):
Aghanim N.   +180 more
openaire   +3 more sources

Signal identification with Kalman Filter towards background-free neutrinoless double beta decay searches in gaseous detectors

open access: yesJournal of High Energy Physics, 2021
Particle tracks and differential energy loss measured in high pressure gaseous detectors can be exploited for event identification in neutrinoless double beta decay (0νββ) searches.
Tao Li   +8 more
doaj   +1 more source

Scattering amplitudes of Kaluza-Klein strings and extended massive double-copy

open access: yesJournal of High Energy Physics, 2022
We study the scattering amplitudes of massive Kaluza-Klein (KK) states of open and closed bosonic strings under toroidal compactification. We analyze the structure of vertex operators for the KK strings and derive an extended massive KLT-like relation ...
Yao Li   +3 more
doaj   +1 more source

Feasibility Study for Application of Digitized Henize Mt. Wilson Michigan Southern Sky Hα$$ \boldsymbol{\alpha} $$ Survey Low‐Dispersive Spectral Plates for Searches for Anomalous and Highly Redshifted Objects

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT The goal of this study is to confirm the feasibility of the use of digitized low dispersive MtWilson Michigan Southern Sky Hα$$ \alpha $$ survey astronomical photographic plates for modern astrophysical research. The detection of highly redshifted objects, such as early galaxies and quasars, is fundamental to understanding the universe's ...
Tauseef Ahmad Zafar   +3 more
wiley   +1 more source

Gravitational Waves from Nnaturalness

open access: yesJournal of High Energy Physics
We study the prospects for probing the Nnaturalness solution to the electroweak hierarchy problem with future gravitational wave observatories. Nnaturalness, in its simplest incarnation, predicts N copies of the Standard Model with varying Higgs mass ...
Brian Batell   +3 more
doaj   +1 more source

A global analysis of charmless two body hadronic decays for anti-triplet charmed baryons

open access: yesJournal of High Energy Physics, 2022
Recently Belle collaboration reported new measurements for the branching fractions with the first observing two processes of B Ξ c 0 → Λ K S 0 $$ \mathcal{B}\left({\Xi}_c^0\to \Lambda {K}_S^0\right) $$ , B Ξ c 0 → Σ 0 K S 0 $$ \mathcal{B}\left({\Xi}_c^0 ...
Fei Huang, Zhi-Peng Xing, Xiao-Gang He
doaj   +1 more source

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