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Creation of bound half-fermion pairs by solitons Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-16 Sapan Karki, Brett Altschul
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Weak cosmic censorship conjecture and black hole shadow for black hole with generalized uncertainty principle Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-15 Meirong Tang
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Masses and magnetic moments of doubly heavy tetraquarks via diffusion Monte Carlo method Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-15 Halil Mutuk
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Charged gravastars with conformal motion in the Finslerian space-time Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-14 T. Sanjay, S. K. Narasimhamurthy, Z. Nekouee, H. M. Manjunatha
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Constraints on Einstein-dilaton Gauss-Bonnet gravity with Taiji Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-14 Weilong Luo, Chang Liu, Zong-Kuan Guo
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Analysis of the hidden-charm pentaquark states based on magnetic moment and transition magnetic moment Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-13 Fei Guo, Hao-Song Li
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The crease flow on null hypersurfaces Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-12 Spiros Cotsakis
The crease flow, replacing the Hamiltonian system used for the evolution of crease sets on black hole horizons, is introduced and its bifurcation properties for null hypersurfaces are discussed. We state the conditions of nondegeneracy and typicality for the crease submanifolds, and find their normal forms and versal unfoldings (codimension 3). The allowed boundary singularities are thus prescribed
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Strong gravitational lensing, quasi-periodic oscillations and constraints from EHT observations for quantum-improved charged black hole Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-12 Niyaz Uddin Molla, Himanshu Chaudhary, G. Mustafa, Ujjal Debnath, S. K. Maurya
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Exact phonon quasibound states around an optical black hole Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-12 David Senjaya
In this work, we present an exact solution of phonon quasibound states in a vortex photon flow that creates an analogous black hole background. We worked out and successfully solve the governing differential equation of the systen that is similar with the relativistic Klein–Gordon equation. The exact radial solutions are discovered in terms of the confluent Heun functions that behaves as ingoing waves
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Gluon distribution and mass decomposition of the pion and kaon Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-12 Chengdong Han, Wei Kou, Rong Wang, Xurong Chen
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Testing Yukawa cosmology at the Milky Way and M31 galactic scales Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-11 Rocco D’Agostino, Kimet Jusufi, Salvatore Capozziello
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Constructing massive particles surfaces in static spacetimes Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-11 Igor Bogush, Kirill Kobialko, Dmitri Gal’tsov
Massive particle surface is a generalization of the photon surface, both of which translate the dynamical properties of geodesics orbiting the gravitating object onto the geometric description. The procedure for constructing the massive particle surfaces in static space-times is described in detail and the equivalence of the main results with the results of the geodesic approach is demonstrated for
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Horizon, homogeneity and flatness problems: do their resolutions really depend upon inflation? Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-10 Ashok K. Singal
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Particle motion and tidal force in a non-vacuum-charged naked singularity Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-10 Divyesh P. Viththani, Ashok B. Joshi, Tapobroto Bhanja, Pankaj S. Joshi
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High-energy QCD dynamics from bottom flavor fragmentation at the Hi-Lumi LHC Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-10 Francesco Giovanni Celiberto
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Predicted $$\varXi _b(6087)^0$$ and further predictions Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-09 Wei-Han Tan, Hui-Min Yang, Hua-Xing Chen
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$$\Xi (1620)^-$$ production in $$K^- p$$ scattering process Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-09 Quan-Yun Guo, Zi-Li Yue, Dian-Yong Chen
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Constraining the attractive fifth force in the general free scalar–tensor gravity with solar system experiments Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-09 Xing Zhang, Bo Wang, Rui Niu
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The hybrid cosmology in the scalar-tensor representation of $$f({\mathcal {G}},T)$$ gravity Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-09 Adam Z. Kaczmarek, Dominik Szczȩśniak
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Topological dyonic black holes of massive gravity with generalized quasitopological electromagnetism Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-09 Askar Ali, Ali Övgün
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$$D_s \rightarrow f_0(980)$$ form factors and the $$D_s^+ \rightarrow (f_0(980) \rightarrow )\left[ \pi \pi \right] _{S}^{\textrm{I} = 0} e^+ \nu _e$$ decay from light-cone sum rules Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-09 Shan Cheng, Shu-Lei Zhang
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Weyl–invariant scalar–tensor gravities from purely metric theories Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-09 Giorgos Anastasiou, Ignacio J. Araya, Avik Chakraborty
We describe a method to generate scalar–tensor theories with Weyl symmetry, starting from arbitrary purely metric higher derivative gravity theories. The method consists in the definition of a conformally-invariant metric \(\hat{g}_{\mu \nu }\), that is a rank (0,2)-tensor constructed out of the metric tensor and the scalar field. This new object has zero conformal weight and is given by \(\phi ^{2/\Delta
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Workshop summary: Kaons@CERN 2023 Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-09 G. Anzivino, Sergio Arguedas Cuendis, V. Bernard, J. Bijnens, B. Bloch-Devaux, M. Bordone, F. Brizioli, J. Brod, J. M. Camalich, A. Ceccucci, P. Cenci, N. H. Christ, G. Colangelo, C. Cornella, A. Crivellin, G. D’Ambrosio, F. F. Deppisch, A. Dery, F. Dettori, M. Di Carlo, B. Döbrich, J. Engelfried, R. Fantechi, M. González-Alonso, M. Gorbahn, E. Goudzovski, Y. Grossman, N. Hermansson-Truedsson, Z. Hives
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Particle dynamics in spherically symmetric electro-vacuum instantons Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-09 Arthur Garnier
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Fast neutron production at the LNL Tandem from the $$^7$$ Li( $$^{14}$$ N,xn)X reaction Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-08 Pablo Torres-Sánchez, Hans Th. J. Steiger, Pierfrancesco Mastinu, Jeffery L. Wyss, Lennard Kayser, Luca Silvestrin, Elizabeth Musacchio-González, Matthias Raphael Stock, David Dörflinger, Ulrike Fahrendholz, Gianfranco Prete, Osvaldo Carletto, Lothar Oberauer, Ignacio Porras
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UC and BUC plane partitions Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-08 Shengyu Zhang, Zhaowen Yan
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Conserved energy–momentum tensor for real-time lattice simulations Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-08 K. Boguslavski, T. Lappi, J. Peuron, P. Singh
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A generalized static spherically symmetric anisotropic compact stellar model Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-08 Megandhren Govender, Shyam Das
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Microscopic state of BHs and an exact one body method for binary dynamics in general relativity Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-08 Ding-fang Zeng
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The LHC as a Neutrino-Ion Collider Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-08 Juan M. Cruz-Martinez, Max Fieg, Tommaso Giani, Peter Krack, Toni Mäkelä, Tanjona R. Rabemananjara, Juan Rojo
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Slowly rotating Q-balls Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-07 Yahya Almumin, Julian Heeck, Arvind Rajaraman, Christopher B. Verhaaren
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Constraints on the trilinear and quartic Higgs couplings from triple Higgs production at the LHC and beyond Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-07 Panagiotis Stylianou, Georg Weiglein
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Dynamics of inspiraling dark energy Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-07 Lilia Anguelova, John Dumancic, Richard Gass, L. C. R. Wijewardhana
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Predictions for neutrinos and new physics from forward heavy hadron production at the LHC Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-06 Luca Buonocore, Felix Kling, Luca Rottoli, Jonas Sominka
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KG-particles in a cosmic string rainbow gravity spacetime in mixed magnetic fields Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-05 Omar Mustafa
We investigate and report the effects of rainbow gravity on the spectroscopic structure of KG-oscillators in a mixed magnetic field (in the sense that it has the usually described as a uniform and a non-uniform magnetic fields, each at a time) introduced by the 4-vector potential \(A_\mu =(0,0,A_\varphi ,0)\), where \(A_\varphi =B_1 r^2/2+B_2 r\), and \(B_1\) and \(B_2\) are magnetic field strengths
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Distinguishing pure and thermal states by Landauer’s principle in open systems Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-04 Hao Xu
Starting from Polchinski’s thought experiment on how to distinguish between pure and thermal states, we construct a specific system to study the interaction between qubit and cavity quantum field theory (QFT) in order to provide a more operational point of view. Without imposing any restrictions on the initial states of qubit and cavity QFT, we compute the evolution of the system order by order by
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Analysis of the $$\mathrm {X_{AV}}$$ state through its electromagnetic properties Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-04 Ulaş Özdem
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Precise QCD predictions for W-boson production in association with a charm jet Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-04 A. Gehrmann-De Ridder, T. Gehrmann, E. W. N. Glover, A. Huss, A. Rodriguez Garcia, G. Stagnitto
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Regge trajectory relations for the universal description of the heavy-light systems: diquarks, mesons, baryons and tetraquarks Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-04 Jiao-Kai Chen
Two newly proposed Regge trajectory relations are employed to analyze the heavy-light systems. One of the relations is \(M=m_1+m_2+C'+\beta _x\sqrt{x+c_{0x}}\), \((x=l,\,n_r)\). Another reads \(M=m_1+C'+\sqrt{\beta _x^2(x+c_{0x})+\frac{4}{3}\sqrt{{\pi }{\beta _x}}m^{3/2}_2(x+c_{0x})^{1/4}}\). M is the bound state mass. \(m_1\) and \(m_2\) are the masses of the heavy constituent and the light constituent
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QGP probes from a dynamical holographic model of AdS/QCD Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-04 S. Heshmatian, R. Morad
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The $$B^0 \rightarrow J/\psi f_0(1370,1500,1710)$$ decays: an opportunity for scalar glueball hunting Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-04 Jia-Le Ren, Min-Qi Li, Xin Liu, Zhi-Tian Zou, Ying Li, Zhen-Jun Xiao
The scalars \(f_0\) closest to 1.5 GeV contain the mesons \(f_0(1370)\), \(f_0(1500)\) and \(f_0(1710)\), and the latter two ones are usually viewed as the potential candidates for the scalar glueballs. In this work, by including the important contributions from the vertex corrections, we study the decays \(B^0 \rightarrow J/\psi f_0\) within the improved perturbative QCD approach and analyze the possible
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Dirac–Bergmann analysis and degrees of freedom of coincident f(Q)-gravity Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-03 Kyosuke Tomonari, Sebastian Bahamonde
We investigate the propagating degrees of freedom of f(Q)-gravity in a 4-dimensional space-time under the imposition of the coincident gauge by performing the Dirac–Bergmann analysis. In this work, we start with a top-down reconstruction of the metric-affine gauge theory of gravity based only on the concept of a vector bundle. Then, the so-called geometrical trinity of gravity is introduced and the
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Classical versus quantum features of the Berthelot cosmological model Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-03
Abstract In this paper, we compare and contrast the classical versus quantum dynamics of a cosmological model based on the literature (Modified) Berthelot equation of state for the description of the dark sector of the universe. At the classical background level we identify a Minkowski-like and a de Sitter-like equilibrium epochs, with the latter occurring only beyond a certain threshold for a parameter
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Curing the high-energy perturbative instability of vector-quarkonium-photoproduction cross sections at order $$\alpha \alpha _s^3$$ with high-energy factorisation Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-03 Jean-Philippe Lansberg, Maxim Nefedov, Melih A. Ozcelik
We cure the perturbative instability of the total-inclusive-photoproduction cross sections of vector S-wave quarkonia observed at high photon-proton-collision energies (\(\sqrt{s_{\gamma p}}\)) in Next-to-Leading Order (NLO) Collinear-Factorisation (CF) computations. This is achieved using High-Energy Factorisation (HEF) in the Doubly-Logarithmic Approximation (DLA), which is a subset of the Leading-Logarithmic
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Quadratic Rastall gravity: from low-mass HESS J1731−347 to high-mass PSR J0952−0607 pulsars Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-03 Waleed El Hanafy
Similar to Rastall gravity we introduce matter-geometry nonminimal coupling which is proportional to the gradient of quadratic curvature invariants. Those are mimicking the conformal trace anomaly when backreaction of the quantum fields to a curved spacetime geometry is considered. We consider a static spherically symmetric stellar structure with anisotropic fluid and Krori-Barua metric potentials
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Sensitivity to CP discovery in the presence of Lorentz invariance-violating potential at T2HK/T2HKK Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-03 Supriya Pan, Kaustav Chakraborty, Srubabati Goswami
The investigation of conservation/violation of conjugation and parity (CP) symmetry in the leptonic sector is essential to understanding the evolution of the universe. Lorentz invariance and CPT are fundamental symmetries of nature. The violation of Lorentz invariance can also lead to CPT violations. The standard three-flavor neutrino oscillation framework presents a scenario for observing the signature
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The optical features of noncommutative charged 4D-AdS-Einstein–Gauss–Bonnet black hole: shadow and deflection angle Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-03 H. Lekbich, N. Parbin, Dhruba Jyoti Gogoi, A. El Boukili, M. B. Sedra
In this paper, we have explored the optical characteristics, namely the shadow and the deflection angle, inherent to the solution of a 4D-AdS-Einstein–Gauss–Bonnet black hole. This solution, which finds its inspiration in noncommutative geometry, had previously been established in our previous work. The radius of the shadow was determined using the Hamilton-Jacobi method and the Carter separation.
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Low-energy spectrum of the BULLKID detector array operated on surface Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-03 D. Delicato, A. Ahmad, L. Bandiera, M. Calvo, M. Cappelli, G. Del Castello, M. del Gallo Roccagiovine, M. Giammei, V. Guidi, D. Maiello, V. Pettinacci, M. Romagnoni, M. Tamisari, A. Cruciani, A. Mazzolari, A. Monfardini, M. Vignati
We present the first continuous operation in a surface lab of BULLKID, a detector for searches of light Dark Matter and precision measurements of the coherent and elastic neutrino-nucleus scattering. The detector consists of an array of 60 cubic silicon particle absorbers of 0.34 g each, sensed by cryogenic kinetic inductance detectors. The data presented focusses on one of the central elements of
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Towards higher-order calculations of quarkonia production with $$k_T$$ -factorization: P-wave charmonia Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-02
Abstract Inclusive P-wave charmonia production in hadronic collisions at high energies is discussed in the framework of non-relativistic QCD and \(k_T\) -factorization formalism. We present two consistent approaches to merge the usual leading order \(k_T\) -factorization calculations with tree-level next-to-leading order off-shell amplitudes. Using these prescriptions, we extracted long-distance matrix
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Stability of Cauchy horizon in charged black holes surrounded by quintessential dark energy Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-02 Lu Chen, Jia Tan
By investigating the Quasinormal Modes of a massless neutral scalar field, we have explored the influence of dark energy on the strong cosmic censorship (SCC) of charged de Sitter-like black holes. The results indicate that SCC can consistently be violated as long as the black hole approaches extremality. However, as the state parameter \(\sigma = 3\omega _f + 1\) of the dark energy increases and approaches
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4D spherically symmetric time-dependent quantum gravity amplitudes Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-02
Abstract In these short notes, we compute non-perturbatively the time-dependent quantum gravity amplitudes for a four-dimensional spherically symmetric space-time with space-like and time-like boundaries. We solve the 4D classical and quantum constraints in a novel way. We identify the classical solution of the constraints as a canonical transformation, where the integration constants are the new variables
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Observation of $$K^{+} \rightarrow \pi ^{+}\pi ^{0}\pi ^{0}\gamma $$ decay Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-02 A. V. Artamonov, V. N. Bychkov, S. V. Donskov, A. P. Filin, S. N. Filippov, A. M. Gorin, E. N. Gushchin, A. V. Inyakin, G. D. Kekelidze, G. V. Khaustov, S. A. Kholodenko, A. A. Khudyakov, V. N. Kolosov, V. I. Kravtsov, Yu. G. Kudenko, A. V. Kulik, V. F. Kurshetsov, V. A. Lishin, V. M. Lysan, M. V. Medynsky, V. F. Obraztsov, A. V. Okhotnikov, V. A. Polyakov, A. Yu. Polyarush, V. I. Romanovsky, V. I
The \(K^{+} \rightarrow \pi ^{+}\pi ^{0}\pi ^{0}\gamma \) decay is observed by the OKA collaboration. About 60 events of the decay observed with signal:noise \(\approx 1\). The branching ratio obtained by normalization to \(K^{+} \rightarrow \pi ^{+}\pi ^{0}\pi ^{0}\) is measured to be \((3.7 \pm 0.9(stat) \pm 0.3(syst))\times 10^{-6}\) for \(E_{\gamma }^*>10\,\textrm{MeV}\). The branching ratio, \(\gamma
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Gravitational memory effects of black bounces and a traversable wormhole Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-01 Hamed Hadi, Reza Naderi
Black bounces are spacetimes that can be interpreted as either black holes or wormholes depending on specific parameters. In this study, we examine the Simpson–Visser and Bardeen-type solutions as black bounces and investigate the gravitational wave in the background of these solutions. We then explore the displacement and velocity memory effects by analyzing the deviation of two neighboring geodesics
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Triply heavy tetraquark states: masses and other properties Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-01
Abstract In this work, we study masses and other static properties of triply heavy tetraquarks in the unified framework of the MIT bag which incorporates chromomagnetic interactions and enhanced binding energy. The masses, magnetic moments and charge radii of all strange and nonstrange (ground) states of triply heavy tetraquarks are computed, suggesting that all of triply heavy tetraquarks are above
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Precision predictions for dark matter with DM@NLO in the MSSM Eur. Phys. J. C (IF 4.4) Pub Date : 2024-04-01
Abstract We present DM@NLO, a Fortran 77 based program with a C++ interface dedicated to precision calculations of dark matter (DM) (co)annihilation cross-sections and elastic dark matter-nucleon scattering amplitudes in the minimal supersymmetric (SUSY) Standard Model (MSSM) at next-to-leading order (NLO) in perturbative (SUSY) QCD. If the annihilating initial particles carry an electric or colour
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Exploring CP violation in $$\varvec{H \rightarrow \tau ^+\,\tau ^-\,\gamma }$$ Eur. Phys. J. C (IF 4.4) Pub Date : 2024-03-30 Erlend Aakvaag, Nikolai Fomin, Anna Lipniacka, Stefan Pokorski, Janusz Rosiek, Dibyakrupa Sahoo
We propose a method of measuring the CP-odd part of the Yukawa interaction of Higgs boson and \(\tau \) leptons by observing the forward–backward asymmetry in the decay \(H \rightarrow \tau ^+ \, \tau ^- \, \gamma \). The source of such asymmetry is the interference of the CP-even loop-level contribution coming from \(H \rightarrow Z \, \gamma \rightarrow \tau ^+ \, \tau ^- \, \gamma \) decay channel
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Symmetry-based study and dynamics of casual bulk viscous matter-dominated universe Eur. Phys. J. C (IF 4.4) Pub Date : 2024-03-30
Abstract The dynamics of cosmological expansion is studied for a spatially flat matter-dominated universe filled with barotropic casual bulk viscous fluid. The evolution equation for the Hubble parameter is derived using Friedmann equations and conservation law for the viscous fluid, in which the viscous pressure is modeled by truncated version of the full Israel-Stewart theory of bulk viscosity. We
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$$(g-2)_{e,\mu }$$ anomalies and decays $$h\rightarrow e_a e_b$$ , $$Z\rightarrow e_ae_b$$ , and $$e_b\rightarrow e_a \gamma $$ in a two Higgs doublet model with inverse seesaw neutrinos Eur. Phys. J. C (IF 4.4) Pub Date : 2024-03-30 T. T. Hong, Q. Duyet Tran, T. Phong Nguyen, L. T. Hue, N. H. T. Nha
The lepton flavor violating decays \(h\rightarrow e_b^\pm e_a^\mp \), \(Z\rightarrow e_b^\pm e_a^\mp \), and \(e_b\rightarrow e_a \gamma \) will be discussed in the framework of the Two Higgs doublet model with presence of new inverse seesaw neutrinos and a singly charged Higgs boson that accommodate both \(1\sigma \) experimental data of \((g-2)\) anomalies of the muon and electron. Numerical results
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Thermal leptogenesis in nonextensive cosmology Eur. Phys. J. C (IF 4.4) Pub Date : 2024-03-30
Abstract Thermal leptogenesis is a mechanism that explains the observed asymmetry between matter and antimatter in the early universe. In this study, we review the impact of nonextensive Tsallis statistical mechanics on the early universe and study its effect on thermal leptogenesis. The study has found that the use of nonextensive statistical mechanics can affect the production of baryon asymmetry
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On the positivity of $$\overline{\textrm{MS}}$$ parton distributions Eur. Phys. J. C (IF 4.4) Pub Date : 2024-03-30
Abstract We revisit our argument that shows that parton distribution functions (PDFs) in the \(\overline{\textrm{MS}}\) scheme are non-negative in the perturbative region, with the dual goals of clarifying its theoretical underpinnings and elucidating its domain of validity. We specifically discuss recent results proving that PDFs can turn negative at sufficiently low scale, we clarify quantitatively