Possible influence of the two string events on the hadron formation in a nuclear environment

TL;DR

This paper investigates how two-string events, caused by pomeron exchange, influence hadron formation and absorption in nuclear environments, challenging the assumption of single-string production in deep inelastic scattering.

Contribution

It introduces the consideration of two-string events in the string model, highlighting their impact on hadron formation lengths and absorption in nuclei.

Findings

Two-string events produce hadrons with smaller formation lengths.

Hadrons from two-string events undergo more absorption in nuclear matter.

Pomeron exchange can lead to two-string production in DIS.

Abstract

One of the basic assumptions of the string model is that as a result of a DIS in nucleus a single string arises, which then breaks into hadrons. However the pomeron exchange considered in this work, leads to the production of two strings in the one event. The hadrons produced in these events have smaller formation lengths, than those with the same energy produced in the single string events. As a consequence, they undergo more substantial absorption in the nuclear matter.