INVITED PAPERS


Modern Trends In Accelerator Development, Colliders

DAΦNE OPERATING EXPERIENCE WITH CRAB WAIST COLLISIONS

M. Zobovª for DAΦNE Collaboration

Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, Frascati, Italy for DAΦNE Collaboration Team

Abstract

The Φ-factory DAΦNE was upgraded in the second half of 2007 in order to implement a recently proposed scheme of crab waist collisions aimed at substantial luminosity increase. Commissioning of the modified collider started in November 2007. In this paper we briefly describe the crab waist collision concept and discuss in detail the DAΦNE hardware upgrade and obtained experimental results.

ª – corresponding author

Paper Slides

74 

DUBNA SITING AND ILC ACTIVITY IN JINR

G.D. Shirkovª

Joint Institute for Nuclear Research, Dubna, Russia

ª – corresponding author

No paper Slides

Contribution not received

MODERN PROBLEMS IN PARTICLE PHYSICS AND NEW CHALLENGES AT TeV SCALE

D. Kazakovª

Joint Institute for Nuclear Research, Dubna, Russia

ª – corresponding author

No paper Slides

Contribution not received

STATUS AND PROGRESS VEPP-2000

D. Berkaevª for VEPP-2000 team

Budker Institute of Nuclear Physics Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

Abstract

VEPP-2000 electron-positron collider construction has been completed in the Budker INP at the beginning of 2007 year. First beam was captured in a special lattice without final focus solenoids. In this regime all systems of power supplies, machine control and beam diagnostics were calibrated and tuned. In the same mode vacuum chamber treatment by synchrotron radiation was performed with electron beam current up to 150 mA.

The first test of the round beam option was performed at the energy of 508 MeV with the solenoidal field 10 T in two interaction straight sections. Studies of the beam-beam interaction have been done in "weak-strong" and "strong-strong" regimes. Measurements of beam sizes in the both cases have indicated a beam behavior similar to expectations for the round colliding beams.

ª – corresponding author

Paper Slides

70 

STATUS AND TRENDS OF THE COMPACT LINEAR COLLIDER (CLIC) STUDY

J.-P. Delahayeª for the Compact LInear Collider Study Team and the CLIC/CTF3 Collaboration

Organisation Européenne pour la Recherche Nucléaire, Genève, Switzerland

ª – corresponding author

No paper Slides

Contribution not received

STATUS OF THE HIRFL-CSR

Y. Yuanª

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China

ª – corresponding author

No paper Slides

Contribution not received

STATUS OF THE LHC

L. Evansª

Organisation Européenne pour la Recherche Nucléaire, Genève, Switzerland

ª – corresponding author

No paper Slides

Contribution not received

STATUS OF VEPP-4M COLLIDER AT BINP

V. Smalukª for the VEPP-4M team

Budker Institute of Nuclear Physics Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia

Abstract

Since 2002, the VEPP-4M electron-positron collider is operating with the KEDR detector for high-energy physics experiments in the 1.5÷2.0 GeV energy range. In these experiments, masses of the J/ψ, ψ´, ψ˝, D- mesons and τ-lepton have been measured with a record accuracy. In the immediate future, further experiments are scheduled in 1÷5 GeV energy range for study of hadron production in continuum and for precise measurement of the R constant. Current status of the VEPP-4M collider and the near future plans are reviewed.

ª – corresponding author

Paper Slides

79 

STATUS REPORT ON THE FAIR PROJECT

C. Dimopoulouª on behalf of FAIR Technical Division, GSI Accelerator Division and collaborators

Gesellschaft für Schwerionenforschung, Darmstadt, Deutsch

ª – corresponding author

No paper Slides

Contribution not received

THE INTERNATIONAL LINEAR COLLIDER FROM RDR TO TDP

W. Bialowonsª

Deutsches Elektronen Synchrotron, Hamburg, Deutsch

ª – corresponding author

No paper Slides

Contribution not received