2021 Vol. 45, No. 7
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2021, 45(7): 073001. doi: 10.1088/1674-1137/abfc38
Abstract:
The prediction of reactor antineutrino spectra will play a crucial role as reactor experiments enter the precision era. The positron energy spectrum of 3.5 million antineutrino inverse beta decay reactions observed by the Daya Bay experiment, in comb...
The prediction of reactor antineutrino spectra will play a crucial role as reactor experiments enter the precision era. The positron energy spectrum of 3.5 million antineutrino inverse beta decay reactions observed by the Daya Bay experiment, in comb...
2021, 45(7): 073101. doi: 10.1088/1674-1137/abf5c9
Abstract:
In this work, we calculate the sub-leading power contributions to radiative leptonic\begin{document}$ D\to\gamma \,\ell \,\nu $\end{document} ![]()
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decay. For the first time, we provide the analytic expressions of next-to-leading power contributions and t...
In this work, we calculate the sub-leading power contributions to radiative leptonic
2021, 45(7): 073102. doi: 10.1088/1674-1137/abf72e
Abstract:
We continue our endeavor to investigate lepton number violating (LNV) processes at low energies in the framework of effective field theory (EFT). In this work we study the LNV tau decays\begin{document}$ \tau^+\rightarrow \ell^-P_i^{+}P_j^{+} $\end{...
We continue our endeavor to investigate lepton number violating (LNV) processes at low energies in the framework of effective field theory (EFT). In this work we study the LNV tau decays
2021, 45(7): 073103. doi: 10.1088/1674-1137/abf827
Abstract:
In this paper, we analyze the dependence of the topological charge density from the overlap operator on the Wilson mass parameter in the overlap kernel by the symmetric multi-probing source (SMP) method. We observe that non-trivial topological object...
In this paper, we analyze the dependence of the topological charge density from the overlap operator on the Wilson mass parameter in the overlap kernel by the symmetric multi-probing source (SMP) method. We observe that non-trivial topological object...
2021, 45(7): 073104. doi: 10.1088/1674-1137/abf829
Abstract:
Measuring vector boson scattering (VBS) precisely is an important step toward understanding the electroweak symmetry breaking of and detecting new physics beyond the standard model (SM). Herein, we propose a neural network that compresses the feature...
Measuring vector boson scattering (VBS) precisely is an important step toward understanding the electroweak symmetry breaking of and detecting new physics beyond the standard model (SM). Herein, we propose a neural network that compresses the feature...
2021, 45(7): 073105. doi: 10.1088/1674-1137/abf8a2
Abstract:
We present a nonextensive version of the Polyakov-Nambu-Jona-Lasinio model that is based on nonextentive statistical mechanics. This new statistics model is characterized by a dimensionless nonextensivity parameter q that accounts for all possible ef...
We present a nonextensive version of the Polyakov-Nambu-Jona-Lasinio model that is based on nonextentive statistical mechanics. This new statistics model is characterized by a dimensionless nonextensivity parameter q that accounts for all possible ef...
2021, 45(7): 073106. doi: 10.1088/1674-1137/abf913
Abstract:
The two-photon-exchange (TPE) effect plays a key role in extracting the form factors (FFs) of the proton. In this work, we discuss several exact properties of the TPE effect in the elastic\begin{document}$ep$\end{document} ![]()
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scattering. By taking four...
The two-photon-exchange (TPE) effect plays a key role in extracting the form factors (FFs) of the proton. In this work, we discuss several exact properties of the TPE effect in the elastic
2021, 45(7): 073107. doi: 10.1088/1674-1137/abfa83
Abstract:
In this study, we choose the scalar and axialvector diquark operators in the color antitriplet as the fundamental building blocks to construct four-quark currents and investigate the diquark-antidiquark type axialvector tetraquark states\begin{docum...
In this study, we choose the scalar and axialvector diquark operators in the color antitriplet as the fundamental building blocks to construct four-quark currents and investigate the diquark-antidiquark type axialvector tetraquark states
2021, 45(7): 073108. doi: 10.1088/1674-1137/abfb50
Abstract:
Top partners are well motivated in many new physics models. Usually, vector like quarks,\begin{document}$T_{\rm L,R}$\end{document} ![]()
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, are introduced to circumvent the quantum anomaly. Therefore, it is crucial to probe their interactions with standard...
Top partners are well motivated in many new physics models. Usually, vector like quarks,
2021, 45(7): 073109. doi: 10.1088/1674-1137/abfb5f
Abstract:
We study the impact of steady, homogeneous, and external parallel electric and magnetic field strengths (\begin{document}$ eE\parallel eB $\end{document} ![]()
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) on the chiral symmetry breaking-restoration and confinement-deconfinement phase transition. We ...
We study the impact of steady, homogeneous, and external parallel electric and magnetic field strengths (
2021, 45(7): 073110. doi: 10.1088/1674-1137/abfbca
Abstract:
We extend the hotspot model to include the virtuality dependence and use it to study the exclusive and dissociative\begin{document}${J}/{\psi}$\end{document} ![]()
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production combined with the dipole amplitude in the target rapidity representation. We det...
We extend the hotspot model to include the virtuality dependence and use it to study the exclusive and dissociative
2021, 45(7): 073111. doi: 10.1088/1674-1137/abfc36
Abstract:
Deep learning has been widely and actively used in various research areas. Recently, in gauge/gravity duality, a new deep learning technique called AdS/DL (Deep Learning) has been proposed. The goal of this paper is to explain the essence of AdS/DL i...
Deep learning has been widely and actively used in various research areas. Recently, in gauge/gravity duality, a new deep learning technique called AdS/DL (Deep Learning) has been proposed. The goal of this paper is to explain the essence of AdS/DL i...
2021, 45(7): 073112. doi: 10.1088/1674-1137/abfd28
Abstract:
Last year, the\begin{document}$ \Xi(1620) $\end{document} ![]()
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state, which is cataloged in the Particle Data Group (PDG) with only one star, was reported again in the \begin{document}$ \Xi^{-}\pi^{+} $\end{document} ![]()
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final state by the Belle Collaboratio...
Last year, the
2021, 45(7): 073113. doi: 10.1088/1674-1137/abfe51
Abstract:
We present a case study for the doubly charged Higgs boson\begin{document}$H^{\pm\pm}$\end{document} ![]()
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pair production in \begin{document}$e^+e^-$\end{document} ![]()
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and pp colliders with their subsequent decays to four charged leptons. We consider the Hig...
We present a case study for the doubly charged Higgs boson
2021, 45(7): 073114. doi: 10.1088/1674-1137/abf828
Abstract:
In this study, we perform a detailed analysis on the same-sign dilepton signature in the inert doublet model. Focusing on the low dark matter mass region, we randomly scan the corresponding parameter space. Viable samples allowed by various constrain...
In this study, we perform a detailed analysis on the same-sign dilepton signature in the inert doublet model. Focusing on the low dark matter mass region, we randomly scan the corresponding parameter space. Viable samples allowed by various constrain...
2021, 45(7): 074101. doi: 10.1088/1674-1137/abf5ca
Abstract:
Cross-section data of the 185Re(n,2n)184mRe, 185Re(n,2n)184gRe, 185Re(n,α)182m1+m2+gTa, 187Re(n, 2n)186g,(m)Re, 187Re(n,α)184Ta, and 187Re(n,p)187W reactions were measured at four neutron energies, namely 13.5, 14.1, 14.4, and 14.8 MeV, by means of t...
Cross-section data of the 185Re(n,2n)184mRe, 185Re(n,2n)184gRe, 185Re(n,α)182m1+m2+gTa, 187Re(n, 2n)186g,(m)Re, 187Re(n,α)184Ta, and 187Re(n,p)187W reactions were measured at four neutron energies, namely 13.5, 14.1, 14.4, and 14.8 MeV, by means of t...
2021, 45(7): 074102. doi: 10.1088/1674-1137/abf645
Abstract:
The large values and constituent-quark-number scaling of the elliptic flow of low-\begin{document}$ p_T $\end{document} ![]()
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D mesons imply that charm quarks, initially produced through hard processes, might be partially thermalized through strong interac...
The large values and constituent-quark-number scaling of the elliptic flow of low-
2021, 45(7): 074103. doi: 10.1088/1674-1137/abf6c3
Abstract:
First-principle calculations based on the density functional theory (DFT) method are adopted to investigate the influence of a strong electric field on the 7Be half-life. Accordingly, electronic structures of Be and BeO are examined in the presence o...
First-principle calculations based on the density functional theory (DFT) method are adopted to investigate the influence of a strong electric field on the 7Be half-life. Accordingly, electronic structures of Be and BeO are examined in the presence o...
2021, 45(7): 074104. doi: 10.1088/1674-1137/abf8a3
Abstract:
Neutrons tunneling to the classically forbidden (CF) region in the neutron-rich nucleus\begin{document}$ ^{68} {\rm{Ca}}$\end{document} ![]()
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are investigated in the Skyrme Hartree-Fock (HF) and Hartree-Fock-Bogoliubov (HFB) models. The definition of the ...
Neutrons tunneling to the classically forbidden (CF) region in the neutron-rich nucleus
2021, 45(7): 074105. doi: 10.1088/1674-1137/abf99a
Abstract:
The coexistence of neutron-neutron (n-n), proton-proton (p-p), and neutron-proton (n-p) pairings is investigated by adopting an effective density-dependent contact pairing potential. These three types of pairings can coexist only if the n-p pairing i...
The coexistence of neutron-neutron (n-n), proton-proton (p-p), and neutron-proton (n-p) pairings is investigated by adopting an effective density-dependent contact pairing potential. These three types of pairings can coexist only if the n-p pairing i...
2021, 45(7): 074106. doi: 10.1088/1674-1137/abf99b
Abstract:
We explore the effects of the density dependence of symmetry energy on the crust-core phase transition and dynamical instabilities in cold and warm neutron stars in the relativistic mean field (RMF) theory with point-coupling interactions using the V...
We explore the effects of the density dependence of symmetry energy on the crust-core phase transition and dynamical instabilities in cold and warm neutron stars in the relativistic mean field (RMF) theory with point-coupling interactions using the V...
2021, 45(7): 074107. doi: 10.1088/1674-1137/abfa84
Abstract:
To explore the properties of neutron-rich nuclei with approximately 40 protons, the density-dependent point coupling (DD-PC1) effective interaction parameter is adopted in the relativistic mean-field theory with the complex momentum representation (R...
To explore the properties of neutron-rich nuclei with approximately 40 protons, the density-dependent point coupling (DD-PC1) effective interaction parameter is adopted in the relativistic mean-field theory with the complex momentum representation (R...
2021, 45(7): 074108. doi: 10.1088/1674-1137/abfaf2
Abstract:
A nuclear mass formula based on the macroscopic microscopic approach is proposed, in which the number of model parameters is reduced compared with other macroscopic microscopic models. The root mean square (RMS) deviation with respect to 2314 trainin...
A nuclear mass formula based on the macroscopic microscopic approach is proposed, in which the number of model parameters is reduced compared with other macroscopic microscopic models. The root mean square (RMS) deviation with respect to 2314 trainin...
2021, 45(7): 074109. doi: 10.1088/1674-1137/abfb51
Abstract:
Three typical Pauli blocking algorithms in quantum molecular dynamics type models are investigated in the nuclear matter, the nucleus, and heavy ion collisions. In nuclear matter, the blocking ratios obtained with the three algorithms are underestima...
Three typical Pauli blocking algorithms in quantum molecular dynamics type models are investigated in the nuclear matter, the nucleus, and heavy ion collisions. In nuclear matter, the blocking ratios obtained with the three algorithms are underestima...
2021, 45(7): 074110. doi: 10.1088/1674-1137/abfd29
Abstract:
The moments and moment products of conserved charges are believed to be sensitive to critical fluctuations, which have been adopted in determining the QCD critical point. Using a dynamical multiphase transport model, we reproduce the centrality and e...
The moments and moment products of conserved charges are believed to be sensitive to critical fluctuations, which have been adopted in determining the QCD critical point. Using a dynamical multiphase transport model, we reproduce the centrality and e...
2021, 45(7): 075001. doi: 10.1088/1674-1137/abf6c2
Abstract:
We present a systematic determination of the responses of PandaX-II, a dual phase xenon time projection chamber detector, to low energy recoils. The electron recoil (ER) and nuclear recoil (NR) responses are calibrated, respectively, with injected tr...
We present a systematic determination of the responses of PandaX-II, a dual phase xenon time projection chamber detector, to low energy recoils. The electron recoil (ER) and nuclear recoil (NR) responses are calibrated, respectively, with injected tr...
2021, 45(7): 075101. doi: 10.1088/1674-1137/abf6c4
Abstract:
Considering a grand canonical ensemble, we study the phase structures and transitions of RN black holes surrounded by quintessence dark energy on two different boundary conditions, namely AdS space and a Dirichlet wall. For AdS space, under the condi...
Considering a grand canonical ensemble, we study the phase structures and transitions of RN black holes surrounded by quintessence dark energy on two different boundary conditions, namely AdS space and a Dirichlet wall. For AdS space, under the condi...
2021, 45(7): 075102. doi: 10.1088/1674-1137/abf72d
Abstract:
We review steady spherically symmetric accretion onto a renormalization group improved Schwarzschild space-time, which is a solution to an asymptotically safe theory (AS) containing high-derivative terms. We use a Hamiltonian dynamical system approac...
We review steady spherically symmetric accretion onto a renormalization group improved Schwarzschild space-time, which is a solution to an asymptotically safe theory (AS) containing high-derivative terms. We use a Hamiltonian dynamical system approac...
2021, 45(7): 075103. doi: 10.1088/1674-1137/abf9ff
Abstract:
Primordial black holes have been considered attractive dark matter candidates, whereas some of the predictions rely heavily on the near-horizon physics that remains to be tested experimentally. As a concrete alternative, thermal 2-2-holes closely res...
Primordial black holes have been considered attractive dark matter candidates, whereas some of the predictions rely heavily on the near-horizon physics that remains to be tested experimentally. As a concrete alternative, thermal 2-2-holes closely res...
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