Superallowed $0^+ \rightarrow 0^+$ $\beta$ decay of $T =2$ $^{20}$Mg: $Q_{\textrm{EC}}$ value and $\beta\gamma$ branching

Autor: Glassman, B. E., Pérez-Loureiro, D., Wrede, C., Allen, J. M., Bardayan, D. W., Bennett, M. B., Brown, B. A., Chipps, K. A., Febbraro, M., Fry, C., Hall, M. R., Hall, O., Liddick, S. N., Magilligan, A., O'Malley, P., Ong, W-J., Pain, S. D., Shidling, P., Sims, H., Thompson, P., Zhang, H.

\textbf{Background}: Superallowed $0^+ \rightarrow 0^+$ $\beta$ decays of isospin $T=2$ nuclides can be used to test theoretical isospin symmetry breaking corrections applied to extract the CKM matrix element $V_{ud}$ from $T = 0,1$ decays by measuri

Externí odkaz: http://arxiv.org/abs/1910.12965

Key $^{19}$Ne states identified affecting $\gamma$-ray emission from $^{18}$F in novae

Autor: Hall, M. R., Barbadian, D. W., Baugher, T., Lepailleur, A., Pain, S. D., Ratkiewicz, A., Ahn, S., Allen, J. M., Anderson, J. T., Ayangeakaa, A. D., Blackmon, J. C., Burcher, S., Carpenter, M. P., Cha, S. M., Chae, K. Y., Chipps, K. A., Cizewski, J. A., Febbraro, M., Hall, O., Hu, J., Jiang, C. L., Jones, K. L., Lee, E. J., O'Malley, P. D., Ota, S., Rasco, B. C., Santiago-Gonzalez, D., Seweryniak, D., Sims, H., Smith, K., Tan, W. P., Thompson, P., Thornsberry, C., Varner, R. L., Walter, D., Wilson, G. L., Zhu, S.

Publikováno v: Phys. Rev. Lett. 122, 052701, 2019

Detection of nuclear-decay $\gamma$ rays provides a sensitive thermometer of nova nucleosynthesis. The most intense $\gamma$-ray flux is thought to be annihilation radiation from the $\beta^+$ decay of $^{18}$F, which is destroyed prior to decay by t

Externí odkaz: http://arxiv.org/abs/1902.00106

Cambridge hybrid closed-loop algorithm in children and adolescents with type 1 diabetes: a multicentre 6-month randomised controlled trial

Autor: Hovorka, R, Acerini, C L, Thankamony, A, Allen, J M, Boughton, C K, Dovc, K, Dunger, D B, Ware, J, Musolino, G, Tauschmann, M, Wilinska, M E, Hayes, J F, Hartnell, S, Slegtenhorst, S, Ruan, Y, Haydock, M, Mangat, J, Denvir, L, Kanthagnany, SK, Law, J, Randell, T, Sachdev, P, Saxton, M, Coupe, A, Stafford, S, Ball, A, Keeton, R, Cresswell, R, Crate, L, Cripps, H, Fazackerley, H, Looby, L, Navarra, H, Saddington, C, Smith, V, Verhoeven, V, Bratt, S, Khan, N, Moyes, L, Sandhu, K, West, C, Wadwa, R P, Alonso, G, Forlenza, G, Slover, R, Towers, L, Berget, C, Coakley, A, Escobar, E, Jost, E, Lange, S, Messer, L, Thivener, K, Campbell, F M, Yong, J, Metcalfe, E, Allen, M, Ambler, S, Waheed, S, Exall, J, Tulip, J, Buckingham, B A, Ekhlaspour, L, Maahs, D, Norlander, L, Jacobson, T, Twon, M, Weir, C, Leverenz, B, Keller, J, Davis, N, Kumaran, A, Trevelyan, N, Dewar, H, Price, G, Crouch, G, Ensom, R, Haskell, L, Lueddeke, LM, Mauras, N, Benson, M, Bird, K, Englert, K, Permuy, J, Ponthieux, K, Marrero-Hernandez, J, DiMeglio, L A, Ismail, H, Jolivette, H, Sanchez, J, Woerner, S, Kirchner, M, Mullen, M, Tebbe, M, Besser, R EJ, Basu, S, London, R, Makaya, T, Ryan, F, Megson, C, Bowen-Morris, J, Haest, J, Law, R, Stamford, I, Ghatak, A, Deakin, M, Phelan, K, Thornborough, K, Shakeshaft, J, Weinzimer, S A, Cengiz, E, Sherr, J L, Van Name, M, Weyman, K, Carria, L, Steffen, A, Zgorski, M, Sibayan, J, Beck, R W, Borgman, S, Davis, J, Rusnak, J, Hellman, A, Cheng, P, Kanapka, L, Kollman, C, McCarthy, C, Chalasani, S, Hood, K K, Hanes, S, Viana, J, Lanning, M, Fox, D S, Arreaza-Rubin, G, Eggerman, T, Green, N, Janicek, R, Gabrielson, D, Belle, S H, Castle, J, Green, J, Legault, L, Willi, S M, Wysham, C, Ware, Julia, Boughton, Charlotte K, Allen, Janet M, Wilinska, Malgorzata E, Tauschmann, Martin, Denvir, Louise, Thankamony, Ajay, Campbell, Fiona M, Wadwa, R Paul, Buckingham, Bruce A, Davis, Nikki, DiMeglio, Linda A, Mauras, Nelly, Besser, Rachel E J, Ghatak, Atrayee, Weinzimer, Stuart A, Hood, Korey K, Fox, D Steven, Kanapka, Lauren, Kollman, Craig, Sibayan, Judy, Beck, Roy W, Hovorka, Roman ^*

Publikováno v: In The Lancet Digital Health April 2022 4(4):e245-e255

9 GeV Energy Gain in a Beam-Driven Plasma Wakefield Accelerator

Autor: Litos, M, Adli, E, Allen, J M, An, W, Clarke, C I, Corde, S, Clayton, C E, Frederico, J, Gessner, S J, Green, S Z, Hogan, M J, Joshi, C, Lu, W., Marsh, K A, Mori, W B, Schmeltz, M, Vafaei-Najafabadi, N, Yakimenko, V

An electron beam has gained a maximum energy of 9 GeV per particle in a 1.3 m-long electron beam-driven plasma wakefield accelerator. The amount of charge accelerated in the spectral peak was 28.3 pC, and the root-mean-square energy spread was 5.0%.

Externí odkaz: http://arxiv.org/abs/1511.06743

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