Forward hadron productions in high energy $pp$ collisions from a Monte-Carlo generator for color glass condensate

Forward hadron productions in high energy $p p$ collisions from a Monte-Carlo generator for color glass condensate

Wei-Tian Deng, Hirotsugu Fujii, Kazunori Itakura, and Yasushi Nara

Phys. Rev. D 91, 014006 – Published 6 January 2015

Abstract

We develop a Monte Carlo event generator based on the combination of a parton production formula including the effects of parton saturation (called the DHJ formula) and a hadronization process due to the Lund string fragmentation model. This event generator is designed for the description of hadron productions at forward rapidities and in a wide transverse momentum range in high-energy proton-proton collisions. We analyze transverse momentum spectra of charged hadrons as well as identified particles, including pion, kaon, and (anti)proton at RHIC energy and ultraforward neutral pion spectra from the LHCf experiment. We compare our results to those obtained in other models based on parton-hadron duality and fragmentation functions.

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Received 16 October 2014

DOI:https://doi.org/10.1103/PhysRevD.91.014006

Authors & Affiliations

Wei-Tian Deng¹, Hirotsugu Fujii², Kazunori Itakura^3,4, and Yasushi Nara⁵

¹School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
²Institute of Physics, University of Tokyo, Tokyo 153-8902, Japan
³KEK Theory Center, IPNS, KEK, Tsukuba 305-0801, Japan
⁴Department of Particle and Nuclear Studies, Graduate University for Advanced Studies(SOKENDAI), Tsukuba 305-0801, Japan
⁵Akita International University, Yuwa, Akita-city 010-1292, Japan

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Vol. 91, Iss. 1 — 1 January 2015

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