A research paper evaluated by other experts either for publication or presentation at a conference is considered to have undergone:

A research paper is a written document that presents the findings of a study or investigation on a particular topic.

Key Points

• Peer review is a process of evaluation of a research paper, article, or manuscript by experts in the same field of study to determine its quality, accuracy, and validity before publication or presentation at a conference.
• The experts, also known as peers or referees, review the paper to ensure that it meets the standards of the academic community and provides valuable contributions to the field. 
• The peer review process typically involves an initial screening of the paper by the editor or program committee, followed by a detailed evaluation by two or more experts in the field.
• The reviewers provide feedback and comments on the strengths and weaknesses of the paper, including suggestions for improvement or clarification.
• The author is given the opportunity to revise the paper based on the feedback before resubmission.
• Peer review is an essential step in the academic publishing process as it helps to maintain the quality and integrity of research and ensures that only valid and accurate information is published.

Thus, a research paper evaluated by other experts either for publication or presentation at a conference is considered to have undergone peer review.