title: Experimental verification of the Hall effect during magnetic reconnection in a laboratory plasma.
abstract: In this Letter we report a clear and unambiguous observation of the out-of-plane quadrupole magnetic field suggested by numerical simulations in the reconnecting current sheet in the magnetic reconnection experiment. Measurements show that the Hall effect is large in the collision-less regime and becomes small as the collisionality increases, indicating that the Hall effect plays an important role in collision-less reconnection.
authors.affiliation: Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas, Princeton Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543, USA.
authors.forename: Yang
authors.initials: Y
authors.lastname: Ren
authors.forename: Masaaki
authors.initials: M
authors.lastname: Yamada
authors.forename: Stefan
authors.initials: S
authors.lastname: Gerhardt
authors.forename: Hantao
authors.initials: H
authors.lastname: Ji
authors.forename: Russell
authors.initials: R
authors.lastname: Kulsrud
authors.forename: Aleksey
authors.initials: A
authors.lastname: Kuritsyn