Zobrazeno 1 - 10
of 972
pro vyhledávání: '"Matteini P."'
Autor:
Matteini, Marco
I present a recap of a fully analytical calculation of the Euclidean action for a self-interacting scalar field with a quartic potential, in the thin-wall approximation. I then apply this result to the coupled fluid-scalar field model, a phenomenolog
Externí odkaz:
http://arxiv.org/abs/2411.17477
Autor:
Opie, Simon, Verscharen, Daniel, Chen, Christopher H. K., Owen, Christopher J., Isenberg, Philip A., Sorriso-Valvo, Luca, Franci, Luca, Matteini, Lorenzo
Publikováno v:
J. Plasma Phys. 90 (2024) 905900602
Where and under what conditions the transfer of energy between electromagnetic fields and particles takes place in the solar wind remains an open question. We investigate the conditions that promote the growth of kinetic instabilities predicted by li
Externí odkaz:
http://arxiv.org/abs/2409.18849
Autor:
Lewis, Harry C., Stawarz, Julia E., Matteini, Lorenzo, Franci, Luca, Klein, Kristopher G., Wicks, Robert T., Salem, Chadi S., Horbury, Timothy S., Wang, Joseph H.
Plasma in the terrestrial magnetosheath is characterised by very weak particle-particle collisions, so kinetic microinstabilities are thought to be responsible for regulating the thermodynamics of the plasma. By exciting electromagnetic waves, these
Externí odkaz:
http://arxiv.org/abs/2407.20844
We consider a single real scalar field in flat spacetime with a polynomial potential up to $\phi^4$, that has a local minimum, the false vacuum, and a deeper global minimum, the true vacuum. When the vacua are almost degenerate we are in the thin wal
Externí odkaz:
http://arxiv.org/abs/2404.17632
Autor:
Huang, Zesen, Shi, Chen, Velli, Marco, Sioulas, Nikos, Panasenco, Olga, Bowen, Trevor, Matteini, Lorenzo, Xia, Mingtao, Shi, Xiaofei, Huang, Sheng, Huang, Jia, Casillas, Lizet
One of the primary science objectives of Parker Solar Probe (PSP) is to determine the structures and dynamics of the plasma and magnetic fields at the sources of the solar wind. However, establishing the connection between {\it in situ} measurements
Externí odkaz:
http://arxiv.org/abs/2312.08669
Autor:
Trotta, D., Larosa, A., Nicolaou, G., Horbury, T. S., Matteini, L., Hietala, H., Blanco-Cano, X., Franci, L., Chen, C. H. K., Zhao, L., Zank, G. P., Cohen, C. M. S., Bale, S. D., Laker, R., Fargette, N., Valentini, F., Khotyaintsev, Y., Kieokaew, R., Raouafi, N., Davies, E., Vainio, R., Dresing, N., Kilpua, E., Karlsson, T., Owen, C. J., Wimmer-Schweingruber, R.
The Parker Solar Probe (PSP) and Solar Orbiter (SolO) missions opened a new observational window in the inner heliosphere, which is finally accessible to direct measurements. On September 05, 2022, a coronal mass ejection (CME)-driven interplanetary
Externí odkaz:
http://arxiv.org/abs/2312.05983
Autor:
Matteini E, Diluvio L, Lambiase S, Cioni A, Gaeta Shumak R, Costanza G, Lanna C, Caldarola G, Bianchi L, Campione E
Publikováno v:
Clinical, Cosmetic and Investigational Dermatology, Vol Volume 17, Pp 2225-2230 (2024)
Enrico Matteini,1,* Laura Diluvio,1,* Sara Lambiase,1 Arnaldo Cioni,1 Ruslana Gaeta Shumak,1 Gaetana Costanza,2 Caterina Lanna,1 Giacomo Caldarola,3,4 Luca Bianchi,1 Elena Campione1 1Dermatology Unit, Department of Systems Medicine, Universit
Externí odkaz:
https://doaj.org/article/e26b93fd460c4f09a3cc330b3bf1347d
Measurements of transverse magnetic field and velocity components from Parker Solar Probe have revealed a coherent quasi-periodic pattern in the near-Sun solar wind. As well as being Alfv\'enic and arc-polarised, these deflections were characterised
Externí odkaz:
http://arxiv.org/abs/2309.13683
Autor:
Conti, Francesco, Banchelli, Martina, Bessi, Valentina, Cecchi, Cristina, Chiti, Fabrizio, Colantonio, Sara, D'Andrea, Cristiano, de Angelis, Marella, Moroni, Davide, Nacmias, Benedetta, Pascali, Maria Antonietta, Sorbi, Sandro, Matteini, Paolo
The cerebrospinal fluid (CSF) of 19 subjects who received a clinical diagnosis of Alzheimer's disease (AD) as well as of 5 pathological controls have been collected and analysed by Raman spectroscopy (RS). We investigated whether the raw and preproce
Externí odkaz:
http://arxiv.org/abs/2309.03664
We present a fully analytical calculation of the false vacuum decay rate for a self-interacting scalar field in the thin-wall approximation. We obtain the bounce solution, together with the Euclidean action, counter-terms and renormalization group ru
Externí odkaz:
http://arxiv.org/abs/2304.02290