Article
Astronomy & Astrophysics
Meisen Gao, Jun Gao
Summary: The study focuses on single top (anti)quark production with leptonic decays at the Large Hadron Electron Collider at next-to-leading order in QCD. The NLO corrections reduce the fiducial cross section by 14%, while the NLO predictions exhibit strong stability under scale variations. A method for determining the top quark mass using the measurement of the average transverse momentum of the charged lepton is proposed, with scale variations at NLO introducing a theoretical uncertainty of about 1.3 GeV.
Article
Physics, Multidisciplinary
E. Cruz-Albaro, A. Gutierrez-Rodriguez, M. A. Hernandez-Ruiz, T. Cisneros-Perez
Summary: In this paper, bounds on the top quark electromagnetic and weak dipole moments are obtained using a bestest little Higgs model (BLHM) approach. These physical observables are sensitive to quantum corrections induced by virtual particles at the one-loop level.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Chemistry, Multidisciplinary
Zhexin Tang, Tongtong Shang, Han Xu, Ting Lin, Ang Gao, Weiguang Lin, Xinyan Li, Shiyu Wang, Botao Yu, Fanqi Meng, Qinghua Zhang, Xuefeng Wang, Dong Su, Qingbo Meng, Lijun Wu, Lin Gu, Ce-Wen Nan
Summary: The physical properties of materials are determined by the valence electron configurations, and different valence shells lead to different phenomena. In this study, we examined the valence electron density and orbital population of Sc2+ in the compound ScS using quantitative convergent-beam electron diffraction. Our results show that the 4s orbital is occupied by Sc2+, which is unexpected as it is usually the 3d orbital that is occupied in transition metal atoms. This finding reveals a unique electron configuration in a transition metal compound and suggests potential ways to modulate material properties by controlling electron orbitals.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Astronomy & Astrophysics
Konstantin Asteriadis, Fabrizio Caola, Kirill Melnikov, Raoul Rontsch
Summary: This paper investigates the production of Higgs bosons in weak boson fusion and its role in studying Higgs interactions with vector bosons. By considering anomalous weak interactions and next-to-next-to-leading order (NNLO) QCD radiative corrections, the description of Higgs boson production in weak boson fusion is extended. It is found that next-to-leading order (NLO) QCD results are sufficiently precise for studying the anomalous couplings, while NNLO QCD corrections only slightly affect the NLO QCD predictions, but enhance the credibility of conclusions based on NLO QCD computations.
Article
Astronomy & Astrophysics
Phillip Gutierrez, Rishabh Jain, Chung Kao
Summary: The study investigates the discovery potential of the top-quark decay into a charm quark and a Higgs boson at the LHC, using a two-Higgs-doublet model and Monte Carlo simulations. It is found that a high-energy LHC at root s = 27 TeV could potentially detect this FCNH signal, suggesting the importance of further research in this area.
Article
Physics, Multidisciplinary
E. Gurkanli, V Ari, A. A. Billur, M. Koksal
Summary: The study focuses on the quartic gauge boson couplings in the Standard Model and the methods for investigating them through collisions, emphasizing the importance of these couplings in studying new physics. The results show that under specific collision conditions, it is possible to effectively measure anomalous WWWW couplings, enhancing the exploration of new physics.
EUROPEAN PHYSICAL JOURNAL PLUS
(2021)
Article
Physics, Particles & Fields
A. Gutierrez-Rodriguez, M. A. Hernandez-Ruiz, E. Gurkanli, V. Ari, M. Koksal
Summary: This paper investigates the e(-) p -> e(-) gamma* p -> pW(-) gamma nu(e) production at the LHeC and FCC-he to probe quartic W+ W- gamma gamma couplings. Using data from future e(-) p colliders, competitive sensitivity measures on the couplings can be obtained. The production mode offers a cleaner collision environment for studying quartic W+ W- gamma gamma couplings compared to the LHC.
EUROPEAN PHYSICAL JOURNAL C
(2021)
Article
Physics, Multidisciplinary
S. Spor, M. Koksal
Summary: We study the effects of anomalous W+W- gamma couplings through the production of W-pairs in the LHeC and FCC-he. We examine different decay channels of the produced W-pairs and present the best limits on the anomalous coupling coefficients. The results demonstrate the potential of this process in future electron-positron colliders.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Astronomy & Astrophysics
S. Spor, M. Koksal
Summary: Investigated anomalous W+W-gamma couplings through the process e-e+/-nu e nu e gamma, obtaining 95% Confidence Level limits that can greatly improve current experimental constraints. Published in Elsevier B.V. under CC BY license, funded by SCOAP3.
Article
Physics, Multidisciplinary
E. Cruz-Albaro, A. Gutierrez-Rodriguez
Summary: In this study, sensitivity limits on the weak dipole moments of the top-quark -Z boson interactions in the Bestest Little Higgs Model (BLHM) were explored. New vertices from scalar bosons, vector bosons, and heavy quarks were calculated, leading to potential values for the weak dipole moments of the top-quark in future collider experiments. This research complements existing studies at the one-loop level and suggests the possibility of measuring the anomalous weak magnetic dipole moment of the top-quark in future experiments.
EUROPEAN PHYSICAL JOURNAL PLUS
(2022)
Article
Astronomy & Astrophysics
George Wei-Shu Hou
Summary: The article discusses a potential new physics theory involving a second Higgs doublet with additional couplings. This theory could explain baryogenesis and address the electron EDM problem. Experimental evidence at the LHC and measurements of decay rates could provide insights into this theory.
Article
Physics, Particles & Fields
H. Denizli, A. Senol
Summary: The study investigated the CP-conserving and CP-violating dimension-six operators of Higgs-gauge boson couplings through simulation experiments. Constraints on four Wilson coefficients were obtained using specific kinematic variables, showing comparable limits with current experimental results at root s = 100 TeV.
Article
Physics, Multidisciplinary
M. S. Afify, Z. Iqbal, G. Murtza
Summary: The study investigates the formation and characteristics of spin electron acoustic (SEA) soliton in a spin-polarized electron-hole plasma, and finds that increasing beam density and spin polarization can change the soliton nature. These findings may be important for understanding the characteristics of localized spin-dependent nonlinear waves in nanosized semiconductor devices.
Article
Astronomy & Astrophysics
Xiao-Fang Han, Tianjun Li, Hong-Xin Wang, Lei Wang, Yang Zhang
Summary: The study shows that the lepton-specific inert two-Higgs-doublet model under certain conditions can explain the anomalies of muon and electron g-2 data simultaneously, with a specific Higgs mass range for appropriate Yukawa couplings. This model is more suitable for explaining lepton universality data than the standard model, and the multilepton event searches at LHC impose a stringent upper bound on one of the Higgs masses.
Review
Astronomy & Astrophysics
Wei-Shu Hou, Tanmoy Modak
Summary: The paragraph discusses the properties of the h(125) boson discovered in 2012 and related research on top quarks. It mainly explores the impact of the h-H mixing angle on various couplings, and proposes some collision processes and related issues.
MODERN PHYSICS LETTERS A
(2021)