Electron-positron pair creation under Gaussian and super-Gaussian pulse trains

Autor: X. X. Zhou, X. N. Cao, C. K. Li, N. S. Lin, Y. J. Li

Publikováno v: European Physical Journal C: Particles and Fields, Vol 84, Iss 10, Pp 1-8 (2024)

Abstract The electron-positron pair (EPP) creation under Gaussian and super-Gaussian pulse trains are studied by the computational quantum field theory (CQFT) in the single-photon regime. The details of the EPP creation are studied from the time evol

Externí odkaz: https://doaj.org/article/2a6fd7695f0a47c0b67f06520f9aac07

GRANDMA and HXMT Observations of GRB 221009A: The Standard Luminosity Afterglow of a Hyperluminous Gamma-Ray Burst—In Gedenken an David Alexander Kann

Autor: D. A. Kann, S. Agayeva, V. Aivazyan, S. Alishov, C. M. Andrade, S. Antier, A. Baransky, P. Bendjoya, Z. Benkhaldoun, S. Beradze, D. Berezin, M. Boër, E. Broens, S. Brunier, M. Bulla, O. Burkhonov, E. Burns, Y. Chen, Y. P. Chen, M. Conti, M. W. Coughlin, W. W. Cui, F. Daigne, B. Delaveau, H. A. R. Devillepoix, T. Dietrich, D. Dornic, F. Dubois, J.-G. Ducoin, E. Durand, P.-A. Duverne, H.-B. Eggenstein, S. Ehgamberdiev, A. Fouad, M. Freeberg, D. Froebrich, M. Y. Ge, S. Gervasoni, V. Godunova, P. Gokuldass, E. Gurbanov, D. W. Han, E. Hasanov, P. Hello, T. Hussenot-Desenonges, R. Inasaridze, A. Iskandar, N. Ismailov, A. Janati, T. Jegou du Laz, S. M. Jia, S. Karpov, A. Kaeouach, R. W. Kiendrebeogo, A. Klotz, R. Kneip, N. Kochiashvili, N. Kunert, A. Lekic, S. Leonini, C. K. Li, W. Li, X. B. Li, J. Y. Liao, L. Logie, F. J. Lu, J. Mao, D. Marchais, R. Ménard, D. Morris, R. Natsvlishvili, V. Nedora, K. Noonan, K. Noysena, N. B. Orange, P. T. H. Pang, H. W. Peng, C. Pellouin, J. Peloton, T. Pradier, O. Pyshna, Y. Rajabov, S. Rau, C. Rinner, J.-P. Rivet, F. D. Romanov, P. Rosi, V. A. Rupchandani, M. Serrau, A. Shokry, A. Simon, K. Smith, O. Sokoliuk, M. Soliman, L. M. Song, A. Takey, Y. Tillayev, L. M. Tinjaca Ramirez, I. Tosta e Melo, D. Turpin, A. de Ugarte Postigo, S. Vanaverbeke, V. Vasylenko, D. Vernet, Z. Vidadi, C. Wang, J. Wang, L. T. Wang, X. F. Wang, S. L. Xiong, Y. P. Xu, W. C. Xue, X. Zeng, S. N. Zhang, H. S. Zhao, X. F. Zhao

Publikováno v: The Astrophysical Journal Letters, Vol 948, Iss 2, p L12 (2023)

Object GRB 221009A is the brightest gamma-ray burst (GRB) detected in more than 50 yr of study. In this paper, we present observations in the X-ray and optical domains obtained by the GRANDMA Collaboration and the Insight Collaboration. We study the

Externí odkaz: https://doaj.org/article/5ebca5e7256647c995f697755b6c737d

Reanalysis of the X-Ray-burst-associated FRB 200428 with Insight-HXMT Observations

Autor: M. Y. Ge, C. Z. Liu, S. N. Zhang, F. J. Lu, Z. Zhang, Z. Chang, Y. L. Tuo, X. B. Li, C. K. Li, S. L. Xiong, C. Cai, X. F. Li, R. Zhang, Z. G. Dai, J. L. Qu, L. M. Song, S. Zhang, L. J. Wang

Publikováno v: The Astrophysical Journal, Vol 953, Iss 1, p 67 (2023)

A double-peak X-ray burst from the Galactic magnetar SGR J1935+2154 was discovered to be associated with the two radio pulses of FRB 200428 separated by 28.97 ± 0.02 ms. Precise measurements of the timing and spectral properties of the X-ray bursts

Externí odkaz: https://doaj.org/article/02de0983a4fb4f1badf4990614982acb

Cost-effectiveness analysis protocol of the Smart Triage program: A point-of-care digital triage platform for pediatric sepsis in Eastern Uganda

Autor: Edmond C. K. Li, Sela Grays, Abner Tagoola, Clare Komugisha, Annette Mary Nabweteme, J. Mark Ansermino, Craig Mitton, Niranjan Kissoon, Asif R. Khowaja

Publikováno v: PLoS ONE, Vol 16, Iss 11 (2021)

Background Sepsis is a clinical syndrome characterized by organ dysfunction due to presumed or proven infection. Severe cases can have case fatality ratio 25% or higher in low-middle income countries, but early diagnosis and timely treatment have a p

Externí odkaz: https://doaj.org/article/e941d373f34f45d1b22278758b8355ff

Scaled laboratory experiments explain the kink behaviour of the Crab Nebula jet

Autor: C. K. Li, P. Tzeferacos, D. Lamb, G. Gregori, P. A. Norreys, M. J. Rosenberg, R. K. Follett, D. H. Froula, M. Koenig, F. H. Seguin, J. A. Frenje, H. G. Rinderknecht, H. Sio, A. B. Zylstra, R. D. Petrasso, P. A. Amendt, H. S. Park, B. A. Remington, D. D. Ryutov, S. C. Wilks, R. Betti, A. Frank, S. X. Hu, T. C. Sangster, P. Hartigan, R. P. Drake, C. C. Kuranz, S. V. Lebedev, N. C. Woolsey

Publikováno v: Nature Communications, Vol 7, Iss 1, Pp 1-8 (2016)

The periodical change of the Crab nebula’s jet direction challenges our understanding of astrophysical jet dynamics. Here the authors use high-power lasers to create a jet that can be directly compared to the Crab nebula’s, and report the detecti

Externí odkaz: https://doaj.org/article/ff2c78a1bb6f48aea0cc24cab4a47592