BibTex format
@article{Warwick:2017:10.1103/PhysRevLett.119.185002,
author = {Warwick, J and Dzelzainis, T and Dieckmann, ME and Schumaker, W and Doria, D and Romagnani, L and Poder, K and Cole, JM and Alejo, A and Yeung, M and Krushelnick, K and Mangles, SPD and Najmudin, Z and Reville, B and Samarin, GM and Symes, DD and Thomas, AGR and Borghesi, M and Sarri, G},
doi = {10.1103/PhysRevLett.119.185002},
journal = {Physical Review Letters},
title = {Experimental observation of a current-driven instability in a neutral electron-positron beam},
url = {http://dx.doi.org/10.1103/PhysRevLett.119.185002},
volume = {119},
year = {2017}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - We report on the first experimental observation of a current-driven instability developing in a quasineutral matter-antimatter beam. Strong magnetic fields (≥1 T) are measured, via means of a proton radiography technique, after the propagation of a neutral electron-positron beam through a background electron-ion plasma. The experimentally determined equipartition parameter of εB≈10−3 is typical of values inferred from models of astrophysical gamma-ray bursts, in which the relativistic flows are also expected to be pair dominated. The data, supported by particle-in-cell simulations and simple analytical estimates, indicate that these magnetic fields persist in the background plasma for thousands of inverse plasma frequencies. The existence of such long-lived magnetic fields can be related to analog astrophysical systems, such as those prevalent in lepton-dominated jets.
AU - Warwick,J
AU - Dzelzainis,T
AU - Dieckmann,ME
AU - Schumaker,W
AU - Doria,D
AU - Romagnani,L
AU - Poder,K
AU - Cole,JM
AU - Alejo,A
AU - Yeung,M
AU - Krushelnick,K
AU - Mangles,SPD
AU - Najmudin,Z
AU - Reville,B
AU - Samarin,GM
AU - Symes,DD
AU - Thomas,AGR
AU - Borghesi,M
AU - Sarri,G
DO - 10.1103/PhysRevLett.119.185002
PY - 2017///
SN - 0031-9007
TI - Experimental observation of a current-driven instability in a neutral electron-positron beam
T2 - Physical Review Letters
UR - http://dx.doi.org/10.1103/PhysRevLett.119.185002
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000414336400013&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/55754
VL - 119
ER -