Article
Astronomy & Astrophysics
Stefan Meinel, Gumaro Rendon
Summary: Understanding the properties of strange Lambda* baryon resonances is a long-standing and fascinating problem. By computing the form factors, we can predict the decay rates and angular observables of Lambda(c) decaying to Lambda*(1520). Furthermore, by combining experimental measurements and theoretical predictions, we obtain an upper limit on the decay rates of Lambda(c) to other semipositronic final states.
Article
Physics, Nuclear
Chang Chen, Wen-Qi Niu, Han-Qing Zheng
Summary: The recently proposed N*(890) 1/2(-) baryon is studied in a flavor SU(3) scheme with K-matrix unitarization, and it is found to co-exist with low-lying poles in other channels, further verifying its existence.
Article
Astronomy & Astrophysics
Jian-Bo Cheng, Du-xin Zheng, Zi-Yang Lin, Shi-Lin Zhu
Summary: We investigate the double-charm and hidden-charm hexaquarks as molecular states using the one-boson-exchange potential model. We consider multichannel coupling and S-D wave mixing and use the complex scaling method to study quasibound states. We find a quasibound state in the double-charm system, but not in the hidden-charm system.
Article
Computer Science, Artificial Intelligence
Seok-Beom Roh, Sung-Kwun Oh, Witold Pedrycz, Zunwei Fu
Summary: This article discusses two key issues in dynamically generated hierarchical neural networks: the type of basic neurons and how to compose a layer. New methods such as least-square SVR and multiple MLS SVR are proposed to improve modeling performance and maintain node diversity, while various selection methods and a new implementation method are introduced to retain node diversity and reduce computational overhead. The proposed method is shown to be preferred over conventional design methodology in terms of diversity of selected nodes and computational aspects.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2022)
Article
Astronomy & Astrophysics
Mathew Thomas Arun, Arpan Chatterjee, Tanumoy Mandal, Subhadip Mitra, Ananya Mukherjee, Krishna Nivedita
Summary: Explored the process of the Z' gauge boson decaying into pairs of right-handed neutrinos in leptophobic U(1) extensions. Analyzed the final state with same-flavor opposite-sign lepton pairs and hadronically decaying boosted W bosons, and found that the high luminosity LHC can discover TeV-scale leptophobic Z' in a wide range of parameter space.
Article
Engineering, Environmental
Ganghua Zhou, Longyun Zhang, Yu Xia, Hangmin Xu, Weiqin Yin, Shengsen Wang, Jianjian Yi, Xingwang Zhu, Xin Ning, Xiaozhi Wang
Summary: This study successfully improved the activity and CO selectivity of photocatalytic CO2 conversion by modifying the surface structure of the catalyst. The newly synthesized TiO2/Cu1NC catalyst showed excellent CO production rate, high selectivity, and stability under full spectral illumination.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Physics, Multidisciplinary
D. Ruterbories, S. Akhter, Z. Ahmad Dar, F. Akbar, V. Ansari, M. Ascencio, M. Sajjad Athar, A. Bashyal, A. Bercellie, M. Betancourt, A. Bodek, J. L. Bonilla, A. Bravar, H. Budd, G. Caceres, T. Cai, M. F. Carneiro, G. A. Diaz, H. da Motta, J. Felix, L. Fields, A. Filkins, R. Fine, A. M. Gago, H. Gallagher, P. K. Gaur, A. Ghosh, S. M. Gilligan, R. Gran, E. Haase, D. A. Harris, S. Henry, K. Jacobsen, D. Jena, S. Jena, J. Kleykamp, A. Klustova, M. Kordosky, D. Last, A. Lozano, X. -G. Lu, E. Maher, S. Manly, W. A. Mann, C. Mauger, K. S. McFarland, A. M. McGowan, B. Messerly, J. Miller, O. Moreno, J. G. Morfin, D. Naples, J. K. Nelson, C. Nguyen, A. Olivier, V. Paolone, G. N. Perdue, K. -J. Plows, M. A. Ramirez, R. D. Ransome, H. Ray, H. Schellman, C. J. Solano Salinas, H. Su, M. Sultana, V. S. Syrotenko, E. Valencia, N. H. Vaughan, A. V. Waldron, M. O. Wascko, C. Wret, B. Yaeggy, L. Zazueta
Summary: This study reports the first measurement of the triple-differential cross section for neutrino quasielastic-like reactions using the MINERvA detector. Discrepancies with simulation predictions were observed, potentially due to inaccuracies in modeling certain scattering processes.
PHYSICAL REVIEW LETTERS
(2022)
Article
Astronomy & Astrophysics
A. Feijoo, V. Valcarce Cadenas, V. K. Magas
Summary: We have used extended Unitarized Chiral Perturbation Theory to study the meson-baryon interaction in the neutral S = -2 sector. Our approach incorporates not only the leading Weinberg-Tomozawa term, as in previous studies, but also the Born terms and next-to-leading order contribution. By employing the SU(3) symmetry of the chiral Lagrangian, we have taken most of the model parameters from the BCN model and fit them to experimental data in the neutral S = -1 sector. Our results demonstrate the ability of our approach to dynamically generate Xi(1620) and Xi(1690) states in reasonable agreement with the data, and provide a natural explanation for the puzzle with the decay branching ratios of Xi(1690). This highlights the reliability of chiral models with unitarization in coupled channels and the importance of considering Born and NLO contributions for precise calculations.
Article
Astronomy & Astrophysics
Aaron Park, Kie Sang Jeong, Su Houng Lee
Summary: Based on the constituent quark model and quark dynamics with confinement, this study analyzes the appearance of quarkyonic modes in the phase space of baryons as density increases. It is found that as baryon density increases, the initial quark mode involves dou thorn quarks from neutron (proton) and leaves the most attractive (ud) diquark intact.
Article
Engineering, Geological
Menghan Wei, Dazhao Song, Xueqiu He, Quan Lou, Liming Qiu, Zhenlei Li
Summary: Rock fracturing is often accompanied by electromagnetic phenomenon. The directionality of the electromagnetic field generated from rock fracturing was studied using a set of electromagnetic antennas capable of simultaneous three-axis measurement. The intensity and directional characteristics of the electromagnetic signals received at different positions were analyzed.
JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
(2023)
Article
Physics, Multidisciplinary
Kosim Olimov, Kadyr G. Gulamov, Khusniddin K. Olimov, Anvar R. Kurbanov, Shavqiddin Niyazov, Alisher K. Olimov, Akbar I. Suvanov
Summary: The production of Delta(0) in p+C-12 and d+C-12 collisions has been investigated separately in the target and projectile fragmentation regions. The masses and widths of the Delta(0) resonances have been extracted and compared. The width of Delta(0) from the target C-12 fragmentation region is about 2.3 times smaller than that from free nucleon collisions. Monte Carlo model calculations have been used to estimate the lifetime of Delta(0) resonances from the target fragmentation region, and it is found to agree well with experimental results.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Biochemical Research Methods
Shilu Zhu, Yifan Cheng, Jialong Chen, Guangli Liu, Tingting Luo, Runhuai Yang
Summary: Micromotors have shown great potential in various fields and further research on the cooperative and interactive behaviours of multiple micromotors could revolutionize many areas. However, reversible transformations among diverse behaviours have not been well explored and are crucial for achieving complex tasks.
Article
Astronomy & Astrophysics
Basabendu Barman, Debasish Borah, Suruj Jyoti Das, Rishav Roshan
Summary: We propose a new method to investigate the nonthermal origin of the baryon asymmetry of the Universe (BAU) and dark matter (DM) using stochastic gravitational waves emitted by evaporating primordial black holes (PBHs) due to PBH density fluctuations. The model suggests that CP-violating out-of-equilibrium decays of a colored scalar, produced nonthermally from PBH evaporation at late epochs, lead to the generation of BAU. The same PBH evaporation also contributes to the nonthermal origin of superheavy DM.
Article
Astronomy & Astrophysics
Dibyendu Bala, Saumen Datta
Summary: The study investigates the interaction between a heavy quark-antiquark pair in color octet configuration in gluon plasma, calculating the effective thermal potential for hybrid states. Results for two different gluonic sources show identical thermal potentials at large distances, and are interpreted as the interaction potential between the static Q and the (Q) overbar in a color octet configuration.
Article
Physics, Applied
Marvin M. Mueller, Miriam Kosik, Marta Pelc, Garnett W. Bryant, Andres Ayuela, Carsten Rockstuhl, Karolina Slowik
Summary: The article introduces a novel Energy-based Plasmonicity Index (EPI) and its application in characterizing resonances in graphene nanoantennas. Analysis of resonances in doped nanoantennas reveals that selected resonances may have a plasmonic nature under low doping limits, but the actual analysis reveals the opposite.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Physics, Nuclear
Natsumi Ikeno, Lianrong Dai, Eulogio Oset
EUROPEAN PHYSICAL JOURNAL A
(2020)
Article
Astronomy & Astrophysics
R. Molina, E. Oset
Article
Multidisciplinary Sciences
Albert Feijoo, Daniel Gazda, Volodymyr Magas, Angels Ramos
Summary: This study introduces an optimized chiral (K) over barN interaction model for explaining experimental data at higher energies, including the impact of higher partial waves and channel coupling. The results are promising, indicating the ability of chiral higher partial waves to extend the description of scattering data to higher energies and account for complex structures in reaction cross-sections.
Article
Physics, Nuclear
Hristijan Kochankovski, Angels Ramos, Isaac Vidana
Summary: An analytic parametrization of the cold hypernuclear matter equation of state is developed based on microscopic calculations, accurately reproducing the results. The parametrization allows for rapid calculations and accurate simulation of microscopic results, and is applied to determine the composition and properties of neutron stars.
EUROPEAN PHYSICAL JOURNAL A
(2022)
Article
Physics, Nuclear
Magdalena Skurzok, Massimiliano Bazzi, Mario Bragadireanu, Damir Bosnar, Michael Cargnelli, Alberto Clozza, Catalina Curceanu, Luca de Paolis, Raffaele Del Grande, Laura Fabbietti, Carlo Guaraldo, Mihai Iliescu, Masahiko Iwasaki, Paolo Levi Sandri, Johann Marton, Marco Miliucci, Pawel Moskal, Kristian Piscicchia, Angels Ramos, Alessandro Scordo, Michal Silarski, Diana Laura Sirghi, Florin Sirghi, Antonio Spallone, Oton Vazquez Doce, Slawomir Wycech, Johann Zmeskal
Summary: The aim of the AMADEUS collaboration is to provide new experimental constraints on the anti-nucleon-K strong interaction in the regime of nonperturbative QCD by investigating the low-energy interactions of K- hadrons with light nuclei. The low-momentum kaon beam produced at the DA Phi NE collider is ideal for studying both at-rest and in-flight K- nuclear captures. Using the large acceptance KLOE detector as an active target allows for excellent position and momentum resolutions. This work presents a brief description of recent AMADEUS results.
INTERNATIONAL JOURNAL OF MODERN PHYSICS E
(2022)
Article
Physics, Multidisciplinary
J. A. Marse-Valera, V. K. Magas, A. Ramos
Summary: The existence of pentaquarks with strangeness content zero and one is a significant discovery in recent years in the field of hadron physics. These states can be explained as hadronic molecules and were predicted before their discovery based on a model using unitarized meson-baryon amplitudes obtained from vector meson exchange interactions. Contrary to previous beliefs, this model also predicts the existence of pentaquarks with double strangeness at approximately 4500 and 4600 MeV, which are generated through a specific and unique mechanism involving a strong coupling between the two heaviest meson-baryon states.
PHYSICAL REVIEW LETTERS
(2023)
Article
Astronomy & Astrophysics
Gloria Montana, Angels Ramos, Laura Tolos, Juan M. Torres-Rincon
Summary: This study investigates the properties of X(3872) and its spin partner X(4014) in both vacuum and at finite temperature. The X(3872) is dynamically generated through the s-wave rescattering of pseudoscalar and vector charm mesons, while the X(4014) is obtained from the scattering of charm vector mesons. The properties of their bottom counterparts are predicted using heavy-quark flavor symmetry. The dynamically generated states exhibit decreasing mass and increasing decay width with temperature, consistent with their meson constituents. These results have implications for relativistic heavy-ion collisions, analysis of the medium formed after hadronization, and femtoscopic studies, and can be tested in lattice-QCD calculations.
Article
Physics, Nuclear
Juan M. Torres-Rincon, Gloria Montana, Angels Ramos, Laura Tolos
Summary: We extend the kinetic theory of D mesons to include thermal and off-shell effects caused by the modification of heavy-meson spectral functions in the medium. Using the Kadanoff-Baym approach, we derive the off-shell Fokker-Planck equation that encodes the heavy-flavor transport coefficients. We analyze the thermal width of D mesons due to their scattering off light mesons, focusing on new in-medium effects and find that the D-meson spatial diffusion coefficient matches well with lattice-QCD calculations and Bayesian analyses at higher temperatures.
Proceedings Paper
Physics, Applied
Ales Cieply, Jaroslava Hrtankova, Jiri Mares, Eliahu Friedman, Avraham Gal, Angels Ramos
PROCEEDINGS OF THE 15TH INTERNATIONAL CONFERENCE ON MESON-NUCLEON PHYSICS AND THE STRUCTURE OF THE NUCLEON
(2020)
Article
Physics, Nuclear
Gloria Montana, Olaf Kaczmarek, Laura Tolos, Angels Ramos
EUROPEAN PHYSICAL JOURNAL A
(2020)
Article
Astronomy & Astrophysics
Gloria Montana, Angels Ramos, Laura Tolos, Juan M. Torres-Rincon
Article
Physics, Multidisciplinary
R. Del Grande, K. Piscicchia, M. Cargnelli, C. Curceanu, L. Fabbietti, J. Marton, P. Moskal, A. Ramos, A. Scordo, D. Sirghi, M. Skurzok, O. Vazquez Doce, S. Wycech, J. Zmeskal, V De Leo, G. Mandaglio, M. Martini, E. Perez Del Rio, A. Selce, M. Silarski
Article
Astronomy & Astrophysics
Natsumi Ikeno, Genaro Toledo, Eulogio Oset
Article
Astronomy & Astrophysics
Shuntaro Sakai, Eulogio Oset, Feng-Kun Guo
Article
Astronomy & Astrophysics
Wei-Hong Liang, E. Oset
