Dspace 6.3 xmlui - Retrieve collection name in Discovery search results

Question

I am using Dspace xmlui v 6.3. I would like to modify the search results so that the name of the collection to which the item belongs appears in the preview. I am using Mirage, although i might migrate to Mirage2 in the future. I understand that for both themes, the document I have to edit is discovery.xsl, because by editing it I succesfully added the dc.format field to the preview. Nevertheless, I don't know how to add the name of the collection. I tried by adding this piece of code from the DIM-Handler.xsl, but it didn't work

<xsl:template name="collectionDetailList-DIM">
        <xsl:variable name="data" select="./mets:dmdSec/mets:mdWrap/mets:xmlData/dim:dim"/>
        <a href="{@OBJID}">
            <xsl:choose>
                    <xsl:when test="string-length($data/dim:field[@element='title'][1]) &gt; 0">
                        <xsl:value-of select="$data/dim:field[@element='title'][1]"/>
                    </xsl:when>
                    <xsl:otherwise>
                        <i18n:text>xmlui.dri2xhtml.METS-1.0.no-title</i18n:text>
                    </xsl:otherwise>
            </xsl:choose>
        </a>
                <!--Display collection strengths (item counts) if they exist-->
                <xsl:if test="string-length($data/dim:field[@element='format'][@qualifier='extent'][1]) &gt; 0">
            <xsl:text> [</xsl:text>
            <xsl:value-of select="$data/dim:field[@element='format'][@qualifier='extent'][1]"/>
            <xsl:text>]</xsl:text>
        </xsl:if>
        <br/>
        <xsl:choose>
            <xsl:when test="$data/dim:field[@element='description' and @qualifier='abstract']">
                <xsl:copy-of select="$data/dim:field[@element='description' and @qualifier='abstract']/node()"/>
            </xsl:when>
            <xsl:otherwise>
                <xsl:copy-of select="$data/dim:field[@element='description'][1]/node()"/>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:template>

Any help would be appreciated. Thank you very much.