Which of the following sentences is correct?
1) During my career I have worked on papers that have been published.
2) During my career I have worked on papers that were published.
Which of the following sentences is correct?
1) During my career I have worked on papers that have been published.
2) During my career I have worked on papers that were published.
"During my career I have worked on papers that have been published." is better.
"Were published" sounds a little bit as if the papers were already published at the time they were being worked on. The present perfect is for things that happened in the past, but have an effect on or a result in the present. (The sentence is probably for the purpose of stating one's present qualifications.)
Also, since the first part of the sentence has "have worked", continuing that with "have been" sounds better.