Quick search Find article
Quick search
Find article

Production of antihydrogen at reduced magnetic field for anti-atom trapping

FREE ARTICLE

G B Andresen1, W Bertsche2,12, A Boston3, P D Bowe1, C L Cesar4, S Chapman2, M Charlton5, M Chartier3, A Deutsch2,13, J Fajans2, M C Fujiwara6, R Funakoshi7, D R Gill6, K Gomberoff2,13,14, J S Hangst1, R S Hayano7, R Hydomako8, M J Jenkins5, L V Jørgensen5, L Kurchaninov6, N Madsen5, P Nolan3, K Olchanski6, A Olin6, R D Page3, A Povilus2, F Robicheaux9, E Sarid10, D M Silveira4, J W Storey6, R I Thompson8, D P van der Werf5, J S Wurtele2 and Y Yamazaki11

Show affiliations


FAST TRACK COMMUNICATION

We have demonstrated production of antihydrogen in a 1 T solenoidal magnetic field. This field strength is significantly smaller than that used in the first generation experiments ATHENA (3 T) and ATRAP (5 T). The motivation for using a smaller magnetic field is to facilitate trapping of antihydrogen atoms in a neutral atom trap surrounding the production region. We report the results of measurements with the Antihydrogen Laser PHysics Apparatus (ALPHA) device, which can capture and cool antiprotons at 3 T, and then mix the antiprotons with positrons at 1 T. We infer antihydrogen production from the time structure of antiproton annihilations during mixing, using mixing with heated positrons as the null experiment, as demonstrated in ATHENA. Implications for antihydrogen trapping are discussed.


PACS

37.10.De Atom cooling methods

52.27.Ep Electron-positron plasmas

36.10.Dr Positronium

52.20.Hv Atomic, molecular, ion, and heavy-particle collisions

Subjects

Atomic and molecular physics

Plasma physics

Dates

Issue 1 (14 January 2008)

Received 6 October 2007, in final form 9 October 2007

Published 19 December 2007



  1. Production of antihydrogen at reduced magnetic field for anti-atom trapping

    G B Andresen et al 2008 J. Phys. B: At. Mol. Opt. Phys. 41 011001

  2. Bounded radial geodesics around a Kerr-Sen black hole

    Paul A Blaga and Cristina Blaga 2001 Class. Quantum Grav. 18 3893

  3. Frictional quantum decoherence

    Bruno Bellomo et al 2007 J. Phys. A: Math. Theor. 40 9437

  4. Resolution improvement in emission optical projection tomography

    Johnathon R Walls et al 2007 Phys. Med. Biol. 52 2775

  5. Background independent quantum gravity: a status report

    Abhay Ashtekar and Jerzy Lewandowski 2004 Class. Quantum Grav. 21 R53

  6. Lectures on supersymmetry breaking

    Kenneth Intriligator and Nathan Seiberg 2007 Class. Quantum Grav. 24 S741

  7. Knot theory and a physical state of quantum gravity

    Tomáš Liko and Louis H Kauffman 2006 Class. Quantum Grav. 23 R63

  8. Physical replicas and the Bose glass in cold atomic gases

    S Morrison et al 2008 New J. Phys. 10 073032

  9. A critical approach to the concept of a polar, low-altitude LARES satellite

    Lorenzo Iorio 2002 Class. Quantum Grav. 19 L175

  10. Deformation quantization of superintegrable systems and Nambu mechanics

    Thomas L Curtright and Cosmas K Zachos 2002 New J. Phys. 4 83

View by subject




Export








Please login to access our web services, or create an account if you don't yet have one.

You must have cookies enabled in your web browser to be able to login.

Username
Password

Forgotten your password? Get a new one here.