I have done 2 research projects on a topic, say "A". But now I am changing my field of work slightly, to say topic "B", and will do my masters thesis on "B". How useful will my projects on "A" be while applying for PhD in "B"? Will an arXiv/journal publication in "A" be comparable to one in "B", from the point of view of PhD admission committee (for graduate schools in US/UK, in particular) ?
I am a Physics master's student. The topics I mentioned above are related High Energy Physics/Gravity. "A" was mostly computational while "B" is purely theoretical.
I understand that any research is good and will add this in my CV in any case. I just want to know how good it actually is. The answer to my question will help me get an idea of graduate schools which are in my league and I could focus on those.
Thanks in advance!