I am planning on applying for PhD positions in Europe (both open calls and cold emails). I have two publications from the lab where I did my BSc. Of course, they are listed in my CV but I am wondering if I should mention them in the cover letter? They're my only publications so far so I thought it might be relevant but they involve a completely different set of techniques/model organisms than what I'm hoping to work with during my PhD. My master's thesis research topic and experience as a research assistant in a different lab are more closely related to what I want to do for my PhD but no publications have come from those yet. So far, I have been highlighting my experience in the last two labs and not mentioning the first lab and the publications.
The main advantage of mentioning the publications is that it shows I produce good quality results that can be published in peer-reviewed journals (the one I'm first author in is IF >6). However, since the field is quite different, I'm concerned it could detract from the overall message of "I want to work in X field/topic" and that it could seem like I'm just padding (see a similar question here where they were advised not to mention undergrad experience).
So I'm wondering if I should mention the publications on the cover letter/the email or not at all?