What does 这一 mean in 在追求这一目标的过程中? In the following sentence:


  在追求这一目标的过程中，赛事转播和媒体是基本要素，国际足联与央视的合作伙伴关系发挥着至关重要的作用。


What does the 这一 here mean? I understand it modifies 目标, but does that mean 一 here works as a measure word for 目标？If that is true, what is the difference between 这一 and 这个, and why does it use 这一 here?



PS: Is the 着 in 发挥着 a continuous aspect particle...?
The '一' here is for emphasis


在追求这目标的过程中 = In the process of pursuing this goal 
在追求这(一)目标的过程中 = In the process of pursuing this (one/ single) goal 


The two sentence basically have the same meaning, but the "一" in the second sentence emphasizes the singularity of the object 目标. Affirm it is the 'one' goal stated earlier and stress its importance. 

More example:

此理想 = this goal

此一理想 = this one goal (affirm it is the 'one' goal stated earlier and stress its importance.  )

此人 = this person

此一人 =  this one person (stress the importance of this person in the context, for example, "this one person holds all the keys to your future success")