Abstract
The J-PARC Hadron Facility is designed as a multipurpose experimental facility for a wide range of particle and nuclear physics programs, aiming to provide the world highest intensity secondary beams. Currently three secondary beam lines; K1.8, K1.8BR and KL together with the test beam line named K1.1BR come into operation. Various experimental programs are proposed at each beam line and some of them have been performed so far. As the first experiment at the J-PARC Hadron Facility, the Θ+ pentaquark was searched for via the pion-induced hadronic reaction in the autumn of 2010. Also experimental programs to search for new hadronic states such as K−pp have started to perform a physics run. The current status and near future programs are introduced.
Highlights
The Hadron Experimental Facility at J-PARC (Japan Proton Accelerator Research Complex) is a multipurpose experimental facility for a wide range of particle and nuclear physics programs
The J-PARC Hadron Facility is designed as a multipurpose experimental facility for a wide range of particle and nuclear physics programs, aiming to provide the world highest intensity secondary beams
Three secondary beam lines; K1.8, K1.8BR and KL together with the test beam line named K1.1BR come into operation
Summary
The Hadron Experimental Facility at J-PARC (Japan Proton Accelerator Research Complex) is a multipurpose experimental facility for a wide range of particle and nuclear physics programs. It aims to provide the world highest intensity secondary beams produced with 30 GeV–9 A primary proton beam on a production target of 30% interaction length. The new beam line, high-momentum beam line, will be completed in the end of the FY2015. It delivers primary and secondary particles up to 30 GeV/c to open a new area of experimental programs to study the medium modification of hadron mass. The recent results of the experimental programs and the future prospects are introduced
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