BROWSE

Related Scientist

Researcher

순수물리이론 연구단
순수물리이론 연구단
more info

Threshold factorization redux

Cited 0 time in webofscience Cited 0 time in scopus
18 Viewed 6 Downloaded
Title
Threshold factorization redux
Author(s)
Junegone Chay; Chul Kim
Publication Date
2018-05
Journal
PHYSICAL REVIEW D, v.97, no.9, pp.094024 -
Publisher
American Physical Society
Abstract
We reanalyze the factorization theorems for the Drell-Yan process and for deep inelastic scattering near threshold, as constructed in the framework of the soft-collinear effective theory (SCET), from a new, consistent perspective. In order to formulate the factorization near threshold in SCET, we should include an additional degree of freedom with small energy, collinear to the beam direction. The corresponding collinear-soft mode is included to describe the parton distribution function (PDF) near threshold. The soft function is modified by subtracting the contribution of the collinear-soft modes in order to avoid double counting on the overlap region. As a result, the proper soft function becomes infrared finite, and all the factorized parts are free of rapidity divergence. Furthermore, the separation of the relevant scales in each factorized part becomes manifest. We apply the same idea to the dihadron production in e+e- annihilation near threshold, and show that the resultant soft function is also free of infrared and rapidity divergences. © 2018 authors. Published by the American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/4987
ISSN
2470-0010
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
Files in This Item:
PhysRevD.97.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse