Article
Physics, Nuclear
B. Ding, C. M. Petrache, S. Guo, E. A. Lawrie, I Wakudyanaye, Z. H. Zhang, H. L. Wang, H. Y. Meng, D. Mengoni, Y. H. Qiang, J. G. Wang, C. Andreoiu, A. Astier, A. Avaa, T. Back, R. A. Bark, D. Bazzacco, A. Boso, T. D. Bucher, B. Cederwall, M. Chisapi, H. L. Fan, F. Galtarossa, F. H. Garcia, A. Goasduff, G. Jaworski, P. Jones, I Kuti, J. J. Lawrie, G. S. Li, R. Li, M. L. Liu, Z. Liu, B. Lomberg, B. F. Lv, T. Marchlewski, L. Mdletshe, L. Msebi, S. H. Mthembu, D. R. Napoli, A. Netshiya, M. F. Nkalanga, J. N. Orce, K. Ortner, F. Recchia, S. Riccetto, A. Rohilla, T. W. Seakamela, M. Siciliano, M. A. Sithole, D. Sohler, J. Srebrny, D. Testov, A. Tucholski, J. J. Valiente-Dobon, F. Wentzel, K. Whitmore, Y. H. Zhang, K. K. Zheng, X. H. Zhou, B. R. Zikhali
Summary: Excited states in Ba-131 and Ce-133 were studied through in-beam gamma-ray spectroscopy, revealing a strongly coupled band associated with a specific configuration for the first time in N = 75 isotopes. The significant energy splitting of signature partners in comparison to other isotopes is attributed to multiple factors including triaxiality and configuration mixing with nearby low-j orbitals.
Article
Physics, Nuclear
K. Kuhn, F. Sarazin, F. M. Nunes, M. A. G. Alvarez, C. Andreoiu, D. W. Bardayan, P. C. Bender, J. C. Blackmon, M. J. G. Borge, R. Braid, B. A. Brown, W. N. Catford, C. Aa Diget, A. DiPietro, T. E. Drake, P. Figuera, A. B. Garnsworthy, J. Gomez-Camacho, G. Hackman, U. Hager, S. Ilyushkin, E. Nacher, P. D. O'Malley, A. Perea, V Pesudo, S. T. Pittman, D. Smalley, C. E. Svensson, O. Tengblad, P. Thompson, C. Unsworth, Z. M. Wang
Summary: The study investigates the nature of 1(-) and 2(-) excited states in Be-10 through the Be-11(p, d) transfer reaction, and finds that their structure is a complex mixture of cluster and halo structures, rather than being uniquely halo-like or cluster-like. The experiment specifically probed a halo-like Be-11 (1/2(+)) configuration in both states, limiting further insights into the structures of these excited states.
Article
Physics, Nuclear
S. Sidorov, D. Zhulyaeva, T. Tretyakova
Summary: This study investigates excited states in the low-energy spectra of Ni70-76. It employs pairing forces in the form of surface delta interaction to explain the formation of the ground state multiplet with seniority nu = 2 states. The splitting of the multiplet is described using mass relationships of neighboring nuclei. The seniority model is then used to reproduce or predict specific states in odd-even isotopes and even-even isotopes. The results are compared with the structure of similar multiplets in N = 50 isotones.
Article
Chemistry, Physical
Salma Bejaoui, Partha P. Bera, Farid Salama, Timothy Lee
Summary: The S0-S1 absorption spectra of anthracene, 9-methylanthracene, and 2-methylanthracene were measured using cavity ring-down spectroscopy technique. The vibronic band systems and their assignments were discussed and compared to previous studies. Density functional theory calculations and time-dependent DFT calculations were carried out to study the structures and vibrational transitions. The vibronic spectra obtained in absorption showed good agreement with fluorescence excitation spectra in terms of peak positions, but exhibited different relative band intensities.
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Optics
Zi-Wei Lin, Ji-Xiang Chen, Ti-Jian Li, Ze-Yu Zhan, Meng Liu, Can Li, Ai-Ping Luo, Pu Zhou, Wen-Cheng Xu, Zhi-Chao Luo
Summary: This paper reports on a 1.7 μm passively mode-locked figure-9 Tm-doped fiber laser that can be used for deep three-photon imaging. By using a nonreciprocal phase shifter and compensating cavity dispersion, a dissipative soliton with a 3-dB bandwidth of 20 nm was achieved. The mode-locked spectral bandwidth could be flexibly tuned by rotating the wave plates. This study provides a foundation for developing robust 1.7 μm ultrashort pulse laser sources.
Article
Biochemistry & Molecular Biology
Jacek Kudelski, Anna Tokarzewicz, Monika Gudowska-Sawczuk, Barbara Mroczko, Piotr Chlosta, Marta Bruczko-Goralewska, Przemyslaw Mitura, Grzegorz Mlynarczyk
Summary: This study aimed to evaluate the expression and activity of matrix metalloproteinase 2 and 9 (MMP-2 and MMP-9) in urinary bladder cancer at different stages. The results showed that the content and activity of MMP-9 were higher than MMP-2, especially in high-grade cancer tissue. MMP-9 may have higher clinical utility as a potential therapeutic option and a diagnostic biomarker for urinary bladder cancer.
Article
Multidisciplinary Sciences
Fan Wu, Daniel Finkelstein-Shapiro, Mao Wang, Ilmari Rosenkampff, Arkady Yartsev, Torbjorn Pascher, Tu C. Nguyen-Phan, Richard Cogdell, Karl Borjesson, Tonu Pullerits
Summary: In this study, the authors experimentally investigated the dynamics of exciton-polaritons in a photosynthetic protein and found evidence of rapid energy transfer to dark polariton states.
NATURE COMMUNICATIONS
(2022)
Article
Astronomy & Astrophysics
F. C. L. Crespi, A. Bracco, E. G. Lanza, A. Tamii, N. Blasi, F. Camera, O. Wieland, N. Aoi, D. L. Balabanski, S. Bassauer, A. S. Brown, M. P. Carpenter, J. J. Carroll, M. Ciemata, A. Czeszumska, P. J. Davies, V. Derya, L. M. Donaldson, Y. D. Fang, H. Fujita, G. Gey, H. T. Ha, M. N. Harakeh, T. Hashimoto, N. Ichige, E. Ideguchi, A. Inoue, J. Isaak, C. Iwamoto, D. G. Jenkins, T. Klaus, N. Kobayashi, T. Koike, M. Krzysiek, M. K. Raju, M. Liu, A. Maj, L. Morris, P. von Neumann Cosel, S. Noji, H. J. Ong, S. G. Pickstone, N. Pietralla, D. Savran, J. M. Schmitt, M. Spieker, G. Steinhilber, C. Sullivan, B. Wasilewska, M. Weinert, V. Werner, Y. Yamamoto, T. Yamamoto, R. G. T. Zegers, X. Zhou, S. Zhu, A. Zilges
Summary: The low-lying dipole strength in Zr-90 and Zr-94 nuclei was investigated using (p, p'gamma) and (alpha, alpha'gamma) experiments. A comparison of the nuclear probes with existing gamma data showed different excitation patterns. The study suggested a mixing of isoscalar and isovector components in the 1(-) states below the particle binding energy.
Correction
Optics
Pierre Jouchet, Clement Cabriel, Nicolas Bourg, Marion Bardou, Christian Pous, Emmanuel Fort, Sandrine Leveque-Fort
Summary: The correction to this paper has been published.
Article
Business
Ping Zhang, Yezhou Sha, Yifan Xu
Summary: The study on the spillover effects between BRIC and G7 from 2009 to 2020 reveals that G7 is the exporter of risk while BRIC is the receiver of risk. The net spillover of G7 is higher than that of BRIC in both static and dynamic spillover analysis, with G7 also exhibiting higher volatility spillover to other markets compared to BRIC.
EMERGING MARKETS FINANCE AND TRADE
(2021)
Article
Astronomy & Astrophysics
Adrian S. Hamers, Giacomo Fragione, Patrick Neunteufel, Bence Kocsis
Summary: Detection of gravitational waves from mergers of neutron stars and black holes in the low- and high-end mass gap poses a puzzle to standard stellar and binary evolution theory. Research shows that most first-generation mergers are consistent with isolated binaries, while second-generation mergers are less common and can be strongly affected by three-body interactions.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Food Science & Technology
Aurelija Zajanckauskaite, Algirdas Noreika, Rasa Rutkiene, Rolandas Meskys, Laura Kaliniene
Summary: Bacteriophage VR26 shows strong efficacy against O26:H11 at common refrigeration temperatures, with significant reductions in bacterial counts observed in several experiments, making it a potential method for controlling STEC O26:H11 in the food industry.
Correction
Optics
Pierre Jouchet, Clement Cabriel, Nicolas Bourg, Marion Bardou, Christian Pous, Emmanuel Fort, Sandrine Leveque-Fort
Summary: A correction for this paper has been published, please refer to the link for more information.
Article
Physics, Multidisciplinary
Francisco Restrepo, Utpal Chatterjee, Genda Gu, Hao Xu, Dirk K. Morr, Juan Carlos Campuzano
Summary: This study investigates the pairing mechanism in Bi2212 cuprate using angle resolved photoemission spectroscopy data and the Bethe-Salpeter equation. The authors suggest that a spin-mediated pairing interaction plays a dominant role in the formation of Cooper pairs and can account for the high superconducting temperature.
COMMUNICATIONS PHYSICS
(2022)
Article
Physics, Multidisciplinary
Raymond J. Hawkins, Yichu Li
Summary: Extending Okun's law to allow for time-dependent response of unemployment to output changes leads to Okun loops, which are an example of anelastic relaxation in economics. These loops have been regularly observed in the US economy since WWII and in all G7 countries. The anelastic form of Okun's law provides a statistically significant and operationally parsimonious representation of output-unemployment dynamics in all G7 countries.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2021)
Article
Physics, Nuclear
K. Sieja, S. Goriely
Summary: This work focuses on the direct neutron-capture process for isotopes of astrophysical interest, using a shell-model approach to calculate spectra and spectroscopic factors in different target nuclei. A comparison of shell-model and global model results reveals discrepancies related to problems in level densities. The results indicate that direct neutron capture is non-negligible and even more important than Hauser-Feshbach predictions for the most neutron-rich nuclei close to the neutron drip line.
EUROPEAN PHYSICAL JOURNAL A
(2021)
Article
Astronomy & Astrophysics
Kamila Sieja
Summary: This study gains new insights into the structure of Sr isotopes in the region of N=60 through experimental studies on excited levels, transition strengths, and spectroscopic factors. A classic shell model is used to describe the structure of Sr isotopes, and spectroscopic factors are computed to understand the evolution of low-energy excitations. The origin of deformation at N=60 is mentioned in the context of shell model and Monte Carlo shell model calculations.
Article
Physics, Multidisciplinary
S. A. Bennett, K. Garrett, D. K. Sharp, S. J. Freeman, A. G. Smith, T. J. Wright, B. P. Kay, T. L. Tang, I. A. Tolstukhin, Y. Ayyad, J. Chen, P. J. Davies, A. Dolan, L. P. Gaffney, A. Heinz, C. R. Hoffman, C. Muller-Gatermann, R. D. Page, G. L. Wilson
Summary: We present a novel technique for obtaining fission data for nuclei that are not in beta stability. These data are important for understanding the astrophysical r process, the origin of heavy elements, and developing predictive models for fission. They are also relevant for terrestrial applications in power generation and safeguarding. The solenoidal spectrometer technique, commonly used for studying nucleon-transfer reactions in inverse kinematics, has been successfully applied to deduce the fission-barrier height of 239U via the 238U(d, pf) reaction, confirming the validity of this technique.
PHYSICAL REVIEW LETTERS
(2023)
Article
Physics, Nuclear
J. Wisniewski, W. Urban, T. Rzaca-Urban, K. Sieja, A. Blanc, M. Jentschel, C. Micheagnoli, P. Mutti, U. Koester, G. de France, G. S. Simpson, C. A. Ur
Summary: Excited levels in 92Kr, 96Zr, and 98Mo nuclei were studied using high-statistics multiple-γ coincidence data. New levels, especially with low spins, were searched for and spin-parity assignments to known levels were confirmed. The experimental results were compared with large-scale shell-model calculations to understand the microscopic structure of these nuclei.
Article
Physics, Nuclear
K. Sieja
Summary: The Brink-Axel hypothesis, which states that the photoabsorption cross section is independent of the excitation energy of a nuclear system, is used in nuclear structure studies and calculations of neutron-capture cross section for astrophysical applications. This study shows that the dipole photoabsorption cross section at low energy is actually dependent on the excitation energy and large deviations from the Brink-Axel hypothesis are observed for the ground state of an even-even system. Additionally, the low-lying E1-strength, known as pygmy dipole resonance, is found to be affected by the excitation energy of the initial state and strongly dependent on its structure. The implications of these findings on neutron-capture cross section calculations are discussed.
EUROPEAN PHYSICAL JOURNAL A
(2023)
Article
Physics, Nuclear
T. Rzaca-Urban, K. Sieja, M. Czerwinski, J. Kurpeta, M. Pomorski, W. Urban, J. Wisniewski, M. Wroblewski, L. Canete, T. Eronen, S. Geldhof, A. Jokinen, A. Kankainen, I. D. Moore, D. Nesterenko, H. Penttila, I Pohjalainen, S. Rinta-Antila, A. de Roubin, M. Vilen
Summary: Low-spin, excited states of the Br-89 nucleus, produced in beta(-) decay of Se-89, have been studied for the first time. The gamma radiation following the beta(-) decay was measured using high-resolution germanium detectors. New levels and gamma transitions were observed, expanding the levels scheme of Br-89. The proposed spin-parity for the ground state of the Se-89 mother nucleus has been changed from (5/2(+)) to (3/2(+)). The observed beta(-) transition to the 1754.5-keV level suggests a pi g(9/2)-based configuration. The low-energy excitation scheme of Br-89 is proposed to be explained by excitations based on pi p(3/2) and pi f(5/2) single-particle levels.
Article
Physics, Nuclear
M. Si, R. Lozeva, H. Naidja, A. Blanc, J-M Daugas, F. Didierjean, G. Duchene, U. Koster, T. Kurtukian-Nieto, F. Le Blanc, P. Mutti, M. Ramdhane, W. Urban
Summary: This study investigates excited states in I-137 through ss decay of Te-137, establishing a new level scheme for I-137 and deducing the half-life of Te-137 and its ss-delayed neutron-emission probability. The experimental results provide valuable information for the theoretical description of nuclei in the region.
Article
Physics, Nuclear
J. Kurpeta, A. Abramuk, T. Rzaca-Urban, W. Urban, L. Canete, T. Eronen, S. Geldhof, M. Gierlik, J. P. Greene, A. Jokinen, A. Kankainen, I. D. Moore, D. A. Nesterenko, H. Penttila, I Pohjalainen, M. Reponen, S. Rinta-Antila, A. de Roubin, G. S. Simpson, A. G. Smith, M. Vilen
Summary: In this study, neutron-rich Pd-119 nuclei were synthesized through proton-induced fission of natural uranium, followed by detailed investigations on their nuclear structure and decay properties. The research revealed two distinct nuclear level structures in Ag-119, and identified two beta-unstable isomers in Pd-119.
Article
Physics, Nuclear
W. Urban, K. Sieja, T. Rzaca-Urban, J. Wisniewski, A. Blanc, M. Jentschel, P. Mutti, U. Koster, T. Soldner, G. de France, G. S. Simpson, C. A. Ur, A. G. Smith, J. P. Greene
Summary: In this study, excited levels in 90Sr, 92Sr, 94Sr, and 96Sr nuclei were investigated, leading to the discovery of new levels and firm spin-parity assignments. A new coexisting deformed band was observed in the 96Sr nucleus. Large-scale shell-model calculations highlighted the important role of various single-particle excitations in the evolution of collectivity in strontium isotopes.
Article
Physics, Nuclear
B. M. Nyako, J. Timar, M. Csatlos, Zs Dombradi, A. J. Krasznahorkay, I Kuti, D. Sohler, T. G. Tornyi, M. Czerwinski, T. Rzaca-Urban, W. Urban, L. Atanasova, D. L. Balabanski, K. Sieja, A. Blanc, G. de France, M. Jentschel, U. Koster, P. Mutti, G. S. Simpson, T. Soldner, C. A. Ur
Summary: Excited states of the neutron-rich 89Br have been observed for the first time through cold neutron induced fission of 235U. The level structure appears similar to that of 87Br, which was confirmed by large valence space shell model calculations. Comparing the observed π g9/2 band with the results of the shell model calculations provides insights into the evolution of collectivity in this region.
Article
Physics, Nuclear
Aniruddha Dey, D. C. Biswas, A. Chakraborty, S. Mukhopadhyay, A. K. Mondal, L. S. Danu, B. Mukherjee, S. Garg, B. Maheshwari, A. K. Jain, A. Blanc, G. de France, M. Jentschel, U. Koster, S. Leoni, P. Mutti, G. Simpson, T. Soldner, C. A. Ur, W. Urban
Summary: A detailed investigation has been carried out for the relative isotopic distributions of even-even correlated fission fragments in the U-235(n, f) fission reaction, using high-statistics data obtained during the EXILL campaign at ILL, Grenoble, France. The experimental results have been substantiated by theoretical calculations and calculations based on the semiempirical GEF model, showing fair agreement between the results.
Article
Physics, Nuclear
B. M. Nyako, J. Timar, M. Csatlos, Zs Dombradi, A. Krasznahorkay, I Kuti, D. Sohler, T. G. Tornyi, M. Czerwinski, T. Rzaca-Urban, W. Urban, P. Baczyk, L. Atanasova, D. L. Balabanski, K. Sieja, A. Blanc, M. Jentschel, U. Koster, P. Mutti, T. Soldner, G. de France, G. S. Simpson, C. A. Ur
Summary: Medium-spin excited states of the neutron-rich nucleus Br-87 were observed and studied for the first time, with fission of U-235 induced by a cold neutron beam. The observed level scheme showed deviations from shell model predictions, particularly in the behavior of the pi g(9/2) band at high spins. This deviation is likely due to increased collectivity resulting from polarization of the core by high-j protons in the pi g(9/2) band.
