The phrase "a particular connection between" is correct and usable in written English.
It can be used when discussing a specific relationship or link between two or more entities, concepts, or ideas.
Example: "The study aims to explore a particular connection between diet and mental health."
Alternatives: "a specific link between" or "a distinct relationship between".
There's a particular connection between the midwest and New York.
"I don't see a particular connection between that site and Antony and Cleopatra," he said.
Trial and error is required to find the best combination of packet length and window size for a particular connection between two computers.
There is a particular connection between that university and Malaya, and that has been built up – it's just lovely to see things like that.
Moreover, it is nearly impossible to design non-invasive experiments that target and/or alter a particular connection between two brain regions.
The advantage of this move is that we don't need to find a particular connection between me, Gordon, Jackie and Britney.
He said department officials were not making "any particular connection" between the expulsions and earlier dust-ups between Washington and Moscow.
What is unclear is any particular connection between the enjoyment of the prurient theater of professional wrestling and antisocial behavior away from the ring.
Consider Steve Bannon's interview with Mother Jones, last summer, in which he proudly identified with the alt-right and then, in the same conversation, denied any particular connection between the alt-right and white nationalism.
He sees no particular connection between that distant commotion and local history, in which he takes little interest apart from observing that "there was a lot of what you might call fanaticism around here in the early days".
Omar invoked the "particular connection" between Muslims and Jews, "one that is fundamentally based on our shared space in history," while discussing a bill related to the movement to boycott Israel.
