Heavy ions and string theory

Heavy Ions Theory Review *

The advent of collider energies to heavy–ion physics is leading to a profound change in the field. The new tools available, specially the access to the large transverse momentum part of the spectrum, allow for an unprecedented characterization of the high–density state created in such collisions. Accordingly, the traditional goal of producing a Quark-Gluon Plasma, the deconfined state of quarks...

DEVELOPMENT IN STRING THEORY

The string theory is a fast moving subject, both physics wise and in the respect of mathematics. In order to keep up with the discipline it is important to move with new ideas which are being stressed. Here I wish to give extracts from new papers of ideas which I have recently found interesting. There are six papers which are involved: I ."Strings formulated directly in 4 dimensions " A. N...

superstring scatterng from dbranes and wess zumino terms in string theory

دو هدف را برای انجام این پایان نامه دنبال می کنیم . نشان می دهیم که بسط دامنه پراکندگی یک میدان راموند-راموند دو میدان پیمانه ای و یک میدان تاکیونی caat بسط سازگاری است که این نکته بیانگر آنست که بسط تاکیونها که بسط انرژی پایین نیست را یافته ایم و این بسط با بسط aatt,ctta,cta,cttt سازگار است با مقایسه با دامنه پراکندگی تعدادی از تصحیحات کنشهای tachyonic dbi, wess-zumino را می یابیم .

QCD and Heavy Ions

This short paper is an attempt to describe a theorist’s view of the goals of relativistic heavy ion program which has just entered the collider era. These goals are centered around understanding the properties and the critical behavior of Quantum Chromo–Dynamics (QCD) in the non–linear regime of high color field strength and high parton density. Some of the current theoretical challenges are hi...

APHYSTHE Theory for Atomic Physics with Heavy Ions