Ruby Regex for string "and/or" as exact match

I am trying to figure out the Ruby Regex for the exact string "and/or". For example, let’s say I have a name variable that is "Elvin and/or Jafarli"

name = "Elvin and/or Jafarli"

and I want to split the name based on the string "and/or". How is that done in Ruby?
This is the final result I am looking for:

name.split(some_regex) results in ["Elvin", "Jafarli"]

** UPDATE **
This is the current regex that exists in the system

names.split(/ (?i)(?:and|or) /)

What I want to do is to update the regex to also split on exactly string match like "Elvin and/or Jafarli". With the suggestions below, there is no output

>Solution :

Add another alternative with |, and escape the delimiter:

names.split(/ (?i)(?:and|or|and\/or) /)

or use the alternative regex literal form:

names.split(%r{ (?i)(?:and|or|and/or) })