If you would like to thank a person or an institute for their help with a research paper, here is a sample template you can use to write an acknowledgment letter about a research paper.
To [Recipient name]
Dear, [Recipient name]
We would like to express our gratitude towards [Name of the institution] for their constant support and wisdom throughout the process of writing this research paper. We would like to thank our fellow colleagues from [Name of the supporting institution] for their valuable insight and expertise regarding the conclusions of this paper.
We thank [Name] from the department of [Department name] for assistance with [Particulars] whose comments were greatly appreciated.
This research paper would not be a reality if not for all the people that contributed immensely for its successful publication.