The Energy Momentum Tensor associated with Hard Parton production in Finite Time. (May 2015)

• Record Type: Journal Article
• Authors: Meiring, Ben; Horowitz, W A
• Is Part Of: Journal of physics. Number 623(2015)
• Publication Date: 2015-05
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/623/1/012019
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: We use the Schwinger-Keldysh finite-time formalism applied to an interacting scalar field theory to derive perturbative expressions detailing the system which exists during the initial stages of a high energy collision. Further, we define the QFT conditional expectation value in an effort to describe the initial conditions associated with jet production in heavy ion physics. In this paper we calculate 〈ϕ〉 (x) for a scalar Yukawa model, demonstrate the finiteness of the energy momentum tensor for λϕ 4 to leading order, and derive an expression for the conditional expectation value of operators to aid in the description jet-like behaviour in interacting theories.