Heavy Ion Acceleration at J-PARC

J-PARC, the Japan Proton Accelerator Research Complex, is an accelerator, which provides a high-intensity proton beam. Recently as a very attractive project, the acceleration of heavy ions produced by supplementary ion sources, called J-PARC-HI, is seriously contemplated by domestic as well as international communities. The planned facility would accelerate heavy ions up to U92+ with a beam energy 20 AGeV ([see formula in PDF] of 6.2 AGeV). The highlight of the J-PARC-HI project is its very high beam rate up to ~1011 Hz, which will enable the study of very rare events. Taking advantage of this high intensity, J-PARC-HI will carry out frontier studies of new and rare observables in this energy region: (i) nuclear medium modification of chiral property of vector mesons through low-mass di-lepton signal, (ii) QCD critical pointcharacterization through event-by-event fluctuation signals of particle production, (iii) systematic measurements related to the equation of state through collective flow signal or two-particle momentum correlation signal, or (iv) the search of hyper nuclei with multi strangeness including or exceeding S = 3. The current plan of J-PARC-HI aims to carrying out the first experimental measurements in 2025.

The Hygroscopy of Amino Acid Ionic Liquids in Aqueous Solution: a Quantum Chemistry Study

Due to many remarkable advantages, such as biodegradability, low cost, chiral property, no toxicity, and excellent solution property, amino acid ionic liquids (AAILs) have received more and more attention and recognition in many chemical and environmental engineering fields. The intervention of water would significantly influence their properties.To understand this effect, the binary systems of water with amino acid-based anion A (A = glycine (Gly

The relativity of chiral property

The standard model ascribes distinct properties to different chiralities of fermions. We show how to incorporate this aspect in an extended space–time-property framework involving two different attributes using a generalized metric which includes gauge fields as well as gravitation. Because the gauge fields are accompanied by coupling constants, all such schemes, including ours, necessitate coupling unification at high energy to ensure universality of gravitational interactions with matter.

CP VIOLATION FROM A HIGHER DIMENSIONAL MODEL

It is shown that Randall–Sundrum model has the EDM term which violates the CP-symmetry. The comparison with the case of Kaluza–Klein theory is done. The chiral property, localization, anomaly phenomena are examined. We evaluate the bulk quantum effect using the method of the induced effective action. This is a new origin of the CP-violation.