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Eli Sarid ALPHA Collaboration, CERN + NRCN, Israel

Antihydrogen Trapping and Resonant Interactions. Eli Sarid ALPHA Collaboration, CERN + NRCN, Israel. The ALPHA Collaboration. NRCN - Nucl. Res. Center Negev, Israel. University of Liverpool, UK . TRIUMF, Canada. University of Wales Swansea, UK . University of Tokyo, Japan.

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Eli Sarid ALPHA Collaboration, CERN + NRCN, Israel

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  1. Antihydrogen Trapping and Resonant Interactions Eli Sarid ALPHA Collaboration, CERN + NRCN, Israel

  2. The ALPHA Collaboration NRCN - Nucl. Res. Center Negev, Israel University of Liverpool, UK TRIUMF, Canada University of Wales Swansea, UK University of Tokyo, Japan University of California Berkeley, USA University of British Columbia, Canada University of Aarhus, Denmark Auburn University, USA University of Calgary, Canada RIKEN, Japan Simon Fraser University, Canada Federal University of Rio de Janeiro, Brazil

  3. We are not LHC (No Higgs in this talk…) • Duoplasmatron= Source  90 keV (kinetic energy) • LINAC2= Linear accelerator  50 MeV • PSBooster= Proton Synchrotron Booster  1.4 GeV • PS= Proton Synchrotron  25 GeV • SPS= Super Proton Synchrotron  450 GeV • LHC= Large Hadron Collider  7 TeV

  4. ALPHA EXPERIMENT

  5. The dream - Antihydrogen Spectroscopy 1s-2s two-photon spectroscopy • Doppler effect cancels • High precision in matter sector • test of CPT theorem f(1S-2S) = 2 466 061 102 474 851(34) Hz - Hänsch group

  6. Antihydrogen Production AD p- Production (GeV)‏ Deceleration (MeV)‏ Na-22 e+ Production (MeV)‏ Moderation Accumulation (eV)‏ Cooling ( ~ meV)‏ 108 e+ 104 p- Trapping (keV)‏ Cooling (~ meV)‏ Hbar Formation mechanism: • Radiative recombination • Binding E. deep; Formation rates low, ~T-0.6 • Three-body recombination • Binding E. shallow; Formation rate high, ~T-4.5

  7. ATHENA- 2002

  8. Antihydrogen Trapping AD p- Production (GeV)‏ Deceleration (MeV)‏ Na-22 e+ Production (MeV)‏ Moderation Accumulation (eV)‏ Cooling ( ~ meV)‏ 108 e+ 104 p- Trapping (keV)‏ Cooling (~ meV)‏ Superimpose Magnetic Trap U=-µB 0.7 K/T per Bohr magneton

  9. Magnetic Trap

  10. Cosmic rays vs. antiprotons

  11. Nature 38 events 38 annihilations in 335 attempts, only 1 in 246 with heated positrons Total background 1.4±1.4 events, including cosmic of 0.46±0.01 events Trapped antihydrogen for at least 172 ms.

  12. Nature 38 events vs. simulation(including the effect of bias electric fields) Bias fields prove that the annihilations are not mirror trapped pbars

  13. ANTIHYDROGEN CONFINEMENT FOR 1000S

  14. Talk in anti-matter language (2011)

  15. STAR TREK ENTERPRISE

  16. FACT Until recently antimatter has been created in very small amounts. But CERN has now broken ground on its new Antiproton Decelerator- an advanced antimatter production facility that promises to create antimatter in much larger quantities. Dan Brown , Angels and Demons (2000)

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