Catálogo de publicaciones - revistas

<jats:title>Abstract</jats:title> <jats:p>In this study, the multi-quasiparticle triaxial projected shell model (TPSM) is applied to investigate <jats:inline-formula> <jats:tex-math><?CDATA $\gamma$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_7_074108_M1.jpg" xlink:type="simple" /> </jats:inline-formula>-vibrational bands in transitional nuclei of <jats:inline-formula> <jats:tex-math><?CDATA $^{118-128}{\rm{Xe}}$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_7_074108_M2.jpg" xlink:type="simple" /> </jats:inline-formula>. We report that each triaxial intrinsic state has a <jats:inline-formula> <jats:tex-math><?CDATA $\gamma$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_7_074108_M3.jpg" xlink:type="simple" /> </jats:inline-formula>-band built on it. The TPSM approach is evaluated by the comparison of TPSM results with available experimental data, which shows a satisfactory agreement. The energy ratios, <jats:italic>B</jats:italic>(<jats:italic>E2</jats:italic>) transition rates, and signature splitting of the <jats:inline-formula> <jats:tex-math><?CDATA $\gamma$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_7_074108_M4.jpg" xlink:type="simple" /> </jats:inline-formula>-vibrational band are calculated. </jats:p>

<jats:title>Abstract</jats:title> <jats:p>We study the structure of nonstrange baryons by analytically calculating the electromagnetic transition helicity amplitudes of the nucleon and Δ resonances. We employ an improved hypercentral constituent quark model and obtain the corresponding eigenenergies and eigenfunctions in closed forms. Then, we calculate the transverse and longitudinal helicity amplitudes for nucleon and Δ resonances. The comparison of evaluated observables and experimental data indicates good agreement between the proposed model and available data.</jats:p>

<jats:title>Abstract</jats:title> <jats:p>The exclusive photoproduction of vector mesons ( <jats:inline-formula> <jats:tex-math><?CDATA $J/\psi$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_7_074110_M1.jpg" xlink:type="simple" /> </jats:inline-formula> and <jats:inline-formula> <jats:tex-math><?CDATA $\phi$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_7_074110_M2.jpg" xlink:type="simple" /> </jats:inline-formula>) is investigated by considering the next-to-leading order corrections in the framework of the color glass condensate. We compare the next-to-leading order modified dipole amplitude with the HERA data, finding a good agreement. Our studies show that the <jats:inline-formula> <jats:tex-math><?CDATA $\chi^2/d.o.f$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_7_074110_M3.jpg" xlink:type="simple" /> </jats:inline-formula> from the leading order, running coupling, and collinearly improved next-to-leading order dipole amplitudes are 2.159, 1.097, and 0.932 for the elastic cross-section, and 2.056, 1.449, and 1.357 for the differential cross-section, respectively. The results indicate that the higher-order corrections contribute significantly to the vector meson productions, and the description of the experimental data is dramatically improved once the higher order corrections are included. We extend the next-to-leading order exclusive vector meson production model to LHC energies using the same parameters obtained from HERA. We find that our model provides a rather good description of the <jats:inline-formula> <jats:tex-math><?CDATA $J/\psi$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_7_074110_M4.jpg" xlink:type="simple" /> </jats:inline-formula> and <jats:inline-formula> <jats:tex-math><?CDATA $\phi$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_7_074110_M5.jpg" xlink:type="simple" /> </jats:inline-formula> data in proton-proton collisions at 7 TeV and 13 TeV in LHCb experiments. </jats:p>

<jats:title>Abstract</jats:title> <jats:p>We propose a new method to test the cosmic distance duality relation using the strongly lensed gravitational waves. The simultaneous observation of the image positions, relative time delay between different images, redshift measurements of the lens and the source, together with the mass modelling of the lens galaxy, provide the angular diameter distance to the gravitational wave source. On the other hand, the luminosity distance to the source can be obtained from the observation of the gravitational wave signals. To our knowledge this is the first time a method is proposed to simultaneously measure the angular diameter distance and the luminosity distance from the same source. Hence, the strongly lensed gravitational waves provide a unique method to test the cosmic distance duality relation. With the construction of the third generation gravitational detectors such as the Einstein Telescope, it will be possible to test the cosmic distance duality relation with an accuracy of a few percent.</jats:p>

<jats:title>Abstract</jats:title> <jats:p>The Ryu-Takayanagi (RT) formula plays a large role in the current theory of gauge-gravity duality and emergent geometry phenomena. The recent reinterpretation of this formula in terms of a set of “bit threads” is an interesting effort in understanding holography. In this study, we investigate a quantum generalization of the “bit threads” based on a tensor network, with particular focus on the multi-scale entanglement renormalization ansatz (MERA). We demonstrate that, in the large <jats:italic>c</jats:italic> limit, isometries of the MERA can be regarded as “sources” (or “sinks”) of the information flow, which extensively modifies the original picture of bit threads by introducing a new variable <jats:italic>ρ</jats:italic>: density of the isometries. In this modified picture of information flow, the isometries can be viewed as generators of the flow. The strong subadditivity and related properties of the entanglement entropy are also obtained in this new picture. The large c limit implies that classical gravity can emerge from the information flow. </jats:p>

<jats:title>Abstract</jats:title> <jats:p>We construct an alternative uniformly accelerated reference frame based on a 3+1 formalism in adapted coordinates. In this frame, a time-dependent redshift drift exists between co-moving observers, which differs from that in Rindler coordinates. This phenomenon can be tested in a laboratory and improve our understanding of non-inertial frames.</jats:p>

<jats:title>Abstract</jats:title> <jats:p>The Born cross section and dressed cross section of <jats:inline-formula> <jats:tex-math><?CDATA $ e^+e^-\to b\bar{b} $?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083001_M1.jpg" xlink:type="simple" /> </jats:inline-formula> and the total hadronic cross section in <jats:inline-formula> <jats:tex-math><?CDATA $ e^+e^- $?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083001_M2.jpg" xlink:type="simple" /> </jats:inline-formula> annihilation in the bottomonium energy region are calculated based on the <jats:inline-formula> <jats:tex-math><?CDATA $ R_b $?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083001_M3.jpg" xlink:type="simple" /> </jats:inline-formula> values measured by the BaBar and Belle experiments. The data are used to calculate the vacuum polarization factors in the bottomonium energy region, and to determine the resonant parameters of the vector bottomonium(-like) states <jats:inline-formula> <jats:tex-math><?CDATA $ Y(10750) $?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083001_M4.jpg" xlink:type="simple" /> </jats:inline-formula>, <jats:inline-formula> <jats:tex-math><?CDATA $ \Upsilon(5S) $?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083001_M5.jpg" xlink:type="simple" /> </jats:inline-formula>, and <jats:inline-formula> <jats:tex-math><?CDATA $ \Upsilon(6S) $?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083001_M6.jpg" xlink:type="simple" /> </jats:inline-formula>. </jats:p>

<jats:title>Abstract</jats:title> <jats:p>The baryon <jats:inline-formula> <jats:tex-math><?CDATA $\Xi_b(6227)$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083101_M2.jpg" xlink:type="simple" /> </jats:inline-formula> with the quantum number <jats:inline-formula> <jats:tex-math><?CDATA $J^P=1/2^{-}$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083101_M3.jpg" xlink:type="simple" /> </jats:inline-formula> is considered as a molecular state composed of a <jats:inline-formula> <jats:tex-math><?CDATA $\Sigma_b$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083101_M4.jpg" xlink:type="simple" /> </jats:inline-formula> baryon and <jats:inline-formula> <jats:tex-math><?CDATA $\bar{K}$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083101_M5.jpg" xlink:type="simple" /> </jats:inline-formula> meson. The partial decay widths of the <jats:inline-formula> <jats:tex-math><?CDATA $\Sigma_b\bar{K}$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083101_M6.jpg" xlink:type="simple" /> </jats:inline-formula> molecular state into <jats:inline-formula> <jats:tex-math><?CDATA $\Xi_b\gamma$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083101_M7.jpg" xlink:type="simple" /> </jats:inline-formula> and <jats:inline-formula> <jats:tex-math><?CDATA $\Xi_b^{'}\gamma$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083101_M8.jpg" xlink:type="simple" /> </jats:inline-formula> final states through hadronic loops are evaluated with the help of the effective Lagrangians. The partial widths for the <jats:inline-formula> <jats:tex-math><?CDATA $\Xi_b(6227)\to\gamma\Xi_b$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083101_M9.jpg" xlink:type="simple" /> </jats:inline-formula> and <jats:inline-formula> <jats:tex-math><?CDATA $\Xi_b(6227)\to\gamma\Xi^{'}_b$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083101_M10.jpg" xlink:type="simple" /> </jats:inline-formula> transitions are evaluated at 1.50–1.02 keV and 17.56–24.91 keV, respectively, which may be accessible for the LHCb. Based on our results, we argue that an experimental determination of the radiative decay width of <jats:inline-formula> <jats:tex-math><?CDATA $\Xi_b(6227)$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083101_M11.jpg" xlink:type="simple" /> </jats:inline-formula> is important for the understanding of its intrinsic properties. </jats:p>

<jats:title>Abstract</jats:title> <jats:p>Using lattice configurations for quantum ​​​​​chromodynamics (QCD) generated with three domain-wall fermions at a physical pion mass, we obtain a parameter-free prediction of QCD’s renormalisation-group-invariant process-independent effective charge, <jats:inline-formula> <jats:tex-math><?CDATA $\hat\alpha(k^2)$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083102_M1.jpg" xlink:type="simple" /> </jats:inline-formula>. Owing to the dynamical breaking of scale invariance, evident in the emergence of a gluon mass-scale, <jats:inline-formula> <jats:tex-math><?CDATA $m_0= 0.43(1)\;$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083102_M2.jpg" xlink:type="simple" /> </jats:inline-formula>GeV, this coupling saturates at infrared momenta: <jats:inline-formula> <jats:tex-math><?CDATA $\hat\alpha(0)/\pi=0.97(4)$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083102_M3.jpg" xlink:type="simple" /> </jats:inline-formula>. Amongst other things: <jats:inline-formula> <jats:tex-math><?CDATA $\hat\alpha(k^2)$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083102_M4.jpg" xlink:type="simple" /> </jats:inline-formula> is almost identical to the process-dependent (PD) effective charge defined via the Bjorken sum rule; and also that PD charge which, employed in the one-loop evolution equations, delivers agreement between pion parton distribution functions computed at the hadronic scale and experiment. The diversity of unifying roles played by <jats:inline-formula> <jats:tex-math><?CDATA $\hat\alpha(k^2)$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083102_M5.jpg" xlink:type="simple" /> </jats:inline-formula> suggests that it is a strong candidate for that object which represents the interaction strength in QCD at any given momentum scale; and its properties support a conclusion that QCD is a mathematically well-defined quantum field theory in four dimensions. </jats:p>

<jats:title>Abstract</jats:title> <jats:p>The preference of the normal neutrino mass ordering from the recent cosmological constraint and the global fit of neutrino oscillation experiments does not seem like a wise choice at first glance since it obscures the neutrinoless double beta decay and hence the Majorana nature of neutrinos. Contrary to this naive expectation, we point out that the actual situation is the opposite. The normal neutrino mass ordering opens the possibility of excluding the higher solar octant and simultaneously measuring the two Majorana <jats:italic>CP</jats:italic> phases in future <jats:inline-formula> <jats:tex-math><?CDATA $0 \nu 2 \beta$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083103_M1.jpg" xlink:type="simple" /> </jats:inline-formula> experiments. Especially, the funnel region will completely disappear if the solar mixing angle takes the higher octant. The combined precision measurement by the JUNO and Daya Bay experiments can significantly reduce the uncertainty in excluding the higher octant. With a typical <jats:inline-formula> <jats:tex-math><?CDATA ${\cal{O}}({\rm{meV}})$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083103_M2.jpg" xlink:type="simple" /> </jats:inline-formula> sensitivity on the effective mass <jats:inline-formula> <jats:tex-math><?CDATA $|m_{ee}|$?></jats:tex-math> <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="cpc_44_8_083103_M3.jpg" xlink:type="simple" /> </jats:inline-formula>, the neutrinoless double beta decay experiment can tell if the funnel region really exists and hence exclude the higher solar octant. With the sensitivity further improved to sub-meV, the two Majorana <jats:italic>CP</jats:italic> phases can be simultaneously determined. Thus, the normal neutrino mass ordering clearly shows phenomenological advantages over the inverted one. </jats:p>