Results 41 to 50 of about 3,185 (219)

Sensitivity analysis of gamma spectroscopy system with dual high-purity germanium detectors

He jishu, 2022
BackgroundIn rare decay experiments, for instance dark matter and neutrino experiments, rays produced by the radioavtive decay in detector material induce extra experiment background, the energy deposition would contaminate the concerned region ...
YAO Yukun, ZHANG Tao, CHENG Chen, SHEN Xun, LIU Jianglai, MENG Yue, QIAN Zhicheng, SI Lin, WANG Siguang, WU Mengmeng   +9 more
doaj   +1 more source

Lectures on Astronomy, Astrophysics, and Cosmology

, 2007
This is a written version of a series of lectures aimed at undergraduate students in astrophysics/particle theory/particle experiment. We summarize the important progress made in recent years towards understanding high energy astrophysical processes and we survey the state of the art regarding the concordance model of cosmology.
openaire   +2 more sources

Search for impact ejecta at the Paleocene–Eocene boundary

Meteoritics &Planetary Science, EarlyView.
Abstract Almost 10 years have passed since microtektites and microkrystites were reported for the Paleocene–Eocene (P–E) boundary in drill cores and outcrop in New Jersey and in ODP Hole 1051B in the western North Atlantic. The glassy spherules were interpreted to reflect an impact trigger for the Paleocene–Eocene Thermal Maximum (PETM).
Birger Schmitz, Yue Cai, Shiyong Liao, Victoriano Pujalte, Ting Ruan, Robert P. Speijer, Ellen Thomas   +6 more
wiley   +1 more source

A geophysical investigation of the Roter Kamm impact crater, Namibia

Meteoritics &Planetary Science, EarlyView.
Abstract The Roter Kamm impact crater is located in the southern Namib Desert. The crater has a diameter of 2.5 km and belongs to the category of simple, bowl‐shaped impact craters, with an elevated rim of fractured target rock. The crater's interior is completely buried beneath sediments, preventing extensive surface investigations of the bedrock ...
Hannah Nienhaus, Pritam Yogeshwar, Wiebke Mörbe, Bülent Tezkan, Yajun Liu, Bufelo Lushetile, Martin Melles   +6 more
wiley   +1 more source

THE BIOLOGICAL SECTION (23 AUGUST 2024) WITHIN THE XXIV GAMOW INTERNATIONAL ASTRONOMICAL CONFERENCE “ASTRONOMY AND BEYOND: ASTROPHYSICS, COSMOLOGY AND GRAVITATION, ASTROPARTICLE PHYSICS, RADIO ASTRONOMY, ASTROBIOLOGY AND GENETICS”, HELD ON 19–23 AUGUST 2024 AT ODESA I. I. MECHNIKOV NATIONAL UNIVERSITY, ODESA CITY, UKRAINE

Odesa National University Herald. Biology
It was the sixth session of the Biological Section within the Gamow International Astronomical Conference that took place on 23 August 2024. The Biological Section was traditionally held under the title “Importance of G. Gamov’s Ideas for the Biology of the 21st Century.” This year, 39 scientists and students participated in the work of the section ...
M. Borisjuk, A. Stepanenko, G. Chen, T. Michael, E. Lem, V. Schubert, I. Schubert, Yu. O. Tynkevich, I. I. Panchuk, R. A. Volkov, P. Satpathy, M. Mirzakhmedov, H. Büchner, S. Chamas, I. Hoffie, D. S. Daghma, J. Kumlehn, Yu. A. Popovych, O. M. Blagodarova, K. S. Shkolina, S. V. Chebotar, G. Chebotar, P. Kotni, M. Oppermann, O. Yushchuk, A. Barkhatova, A. Chyzh, Y. Mast, F. Marinelli, V. Fedorenko, S. Melnyk, M. Stierhof, D. Bratiichuk, Yu. Rebets, A. Luzhetskyy, B. Ostash, V.-M. Tseduliak, O. Koshla, S. Matsumoto, Y. Ohtsubo, Y. Nagata, I. Roman, O. Gromyko, D. Zharikova, R. Sawers, C. J. Barnes, K. Snape, R. Sydor, N. Senchenko, N. Shenderovska, M. Heichenko, I. Starenka, I. Savinova, D. Semeniuk, N. Hrubiian, R. Vietrov, S. Novosolov, S. Panashchuk, A. Olkhovska, M. Trokoz, O. Hubar, Yu. Monczak, X. Li   +62 more
openaire   +3 more sources

Static recrystallization of shocked calcite in Ries impact breccias

Meteoritics &Planetary Science, EarlyView.
Abstract Calcite is prone to chemical and microstructural modifications, especially after having been strained at high stresses and strain rates, as during hypervelocity impact events. These modifications include precipitation from pore fluid as well as replacement of strained volumes by recrystallization. In calcite aggregates of a metagranite breccia
Claudia A. Trepmann, Fabian Dellefant, Lina Seybold, Wolfgang W. Schmahl, Elena Sturm, Daniel Weidendorfer, Sandro Jahn, Iuliia V. Sleptsova, Stuart A. Gilder   +8 more
wiley   +1 more source

Dark scalars and heavy neutral leptons at DarkQuest

Journal of High Energy Physics, 2021
The proposed DarkQuest beam dump experiment, a modest upgrade to the existing SeaQuest/SpinQuest experiment, has great potential for uncovering new physics within a dark sector.
Brian Batell, Jared A. Evans, Stefania Gori, Mudit Rai   +3 more
doaj   +1 more source

Microspherules Formed by Lightning Strikes

Meteoritics &Planetary Science, EarlyView.
Abstract Natural microspherules are formed by high‐temperature processes and are present throughout the geologic record to the present day. We report the discovery of large numbers of microspherules recovered from a rock pavement in the Pilbara region, Western Australia.
M. R. Boyd, M. J. Genge, A. G. Tomkins
wiley   +1 more source

Lightcone and quasi distribution amplitudes for light octet and decuplet baryons

Journal of High Energy Physics
We present a comprehensive investigation of leading-twist lightcone distribution amplitudes (LCDAs) and quasi distribution amplitudes (quasi-DAs) for light octet and decuplet baryons within large momentum effective theory.
Chao Han, Wei Wang, Jun Zeng, Jia-Lu Zhang   +3 more
doaj   +1 more source

Microbial Endolithic Community at Meteor Crater

Meteoritics &Planetary Science, EarlyView.
Abstract Postimpact recovery and evolution in response to climate changes produced a modern ecosystem at Meteor Crater dominated by a grassland and woodland of piñon and juniper, which has been used to evaluate floral and megafaunal consequences of impact cratering during the Phanerozoic Eon of complex life.
David A. Kring, Charles S. Cockell
wiley   +1 more source