Change the product display in search results

[csho]

Hello,
I would like to rearrange the layout of the products when I use search in the search results page, I would like to add more information and make data load horizontially and not vertically. (I setted limit to 1 product per row already)
I looked in the default.php but this is for editing the product page.
Does anyone knows which file is responsible for the layout of search results?
Thanks