Jet energy flow at the LHC (2009)
Hatta, Yoshitaka, Ueda, Takahiro
We present a quantitative study of energy flow away from jets by numerically solving the evolution equation derived by Banfi, Marchesini and Smye (BMS), and apply the result to two processes at the...
Polarized DIS in N=4 SYM: Where is spin at strong coupling? (2009)
Hatta, Yoshitaka, Ueda, Takahiro, Xiao, Bo-Wen
Using the AdS/CFT correspondence, we calculate the polarized structure functions in strongly coupled N=4 supersymmetric Yang-Mills theory deformed in the infrared. We find that the flavor singlet...
Soft gluons away from jets: distribution and correlation (2009)
Avsar, Emil, Hatta, Yoshitaka, Matsuo, Toshihiro
Recently, an exact conformal mapping between soft gluons emitted from jets at large angle in e+e- annihilation and those in the BFKL evolution of a high energy hadron has been proposed. We elucidate...
Relating $e^+e^-$ annihilation to high energy scattering at weak and strong coupling (2008)
We explore the correspondence between the final state in e^+e^- annihilation and the small-x hadronic wavefunction in the transverse plane both in weakly coupled QCD and strongly coupled N=4 SYM. At...
Thermal hadron spectrum in $e^+e^-$ annihilation from gauge/string duality (2008)
Hatta, Yoshitaka, Matsuo, Toshihiro
We compute the inclusive spectrum of produced particles in e+e- annihilation in confining gauge theories that have a gravity dual and show that the momentum distribution exhibits the thermal behavior.
Quantitative study of the transverse correlation of soft gluons in high energy QCD (2008)
We examine both analytically and numerically the validity of factorization for the double dipole scattering amplitude T^{(2)} which appears on the right hand side of the BK--JIMWLK equation. We...
Jet fragmentation and gauge/string duality (2008)
Hatta, Yoshitaka, Matsuo, Toshihiro
We consider an analog of e^+e^- annihilation in gauge theories which have a dual string description in asymptotically AdS_5 space and discuss the nature of jet fragmentation. We construct the...
CGC formalism with two sources (2006)
In this work we extend the JIMWLK formalism to the two-source problem. The S-matrix for the forward scattering can be written in a double functional integral representation which involves the usual...
On the Wess-Zumino term in high energy QCD (2005)
Recently, Kovner and Lublinsky proposed new small-x QCD evolution equations valid when the gluon density inside the target is low. The key element of their construction is the Wess-Zumino term which...
Deconfining Phase Transition as a Matrix Model of Renormalized Polyakov Loops (2003)
Dumitru, Adrian, Hatta, Yoshitaka, Lenaghan, Jonathan, Orginos, Kostas, Pisarski, Robert D.
We discuss how to extract renormalized from bare Polyakov loops in SU(N) lattice gauge theories at nonzero temperature in four spacetime dimensions. Single loops in an irreducible representation are...
On the nature of thermal QCD phase transitions (2003)
Hatta, Yoshitaka, Fukushima, Kenji
We argue that the chiral phase transition and the deconfinement phase transition in finite temperature QCD are just different limits of a single crossover phase transition driven by the lightest...
Linking the chiral and deconfinement phase transitions (2003)
Hatta, Yoshitaka, Fukushima, Kenji
We show that the electric glueball becomes critical at the end-point of the deconfinement phase transition in finite temperature QCD. Based on this observation and existing lattice data, we argue...
Universality, the QCD critical/tricritical point and the quark number susceptibility (2002)
Hatta, Yoshitaka, Ikeda, Takashi
The quark number susceptibility near the QCD critical end-point (CEP), the tricritical point (TCP) and the O(4) critical line at finite temperature and quark chemical potential is investigated. Based...
Traces of the tricritical point on the QCD phase diagram (2001)
This paper has been withdrawn by the author.
Purely perturbative Boltzmann equation for hot non-Abelian gauge theories (2001)
In the perturbation theory, trasnport phenomena in hot non-Abelian gauge theories like QCD are often plagued with infrared singularities or nonperturbative effects. We show, in the context of the...