JQuery/JavaScript change in the checkbox

I have a simple div with multiple checkboxes in it. I want to look for any change in the checkbox to make an ajax query. This code is not able to see the changes in those checkboxes. What is the right way to do it?

$(document).on('change', '#listfilters checkbox', function(e) {
        if(this.checked) {
            alert("changed");
          // checkbox is checked
        }
  });

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>

<div id="listfilters">
    <p>
    <input type="checkbox" id="showall" name="showall" value=0>&nbsp;
    <label for="showall">Show All</label>
    </p>
    <p>
    <input type="checkbox" id="showfl" name="showfl" value=0>&nbsp;
    <label for="showfl">Filtered</label>
    </p>
</div>