P or <chr_abbr type="reg" class="sc" expan="tra" cert="no">t-alpha</chr_abbr>ire m<chr_abbr type="reg" class="dc" expan="on" cert="no">o-hbar</chr_abbr> m<chr_abbr type="reg" class="dc" expan="en" cert="no">e-hbar</chr_abbr>gier am<chr_abbr type="reg" class="dc" expan="on" cert="no">o-hbar</chr_abbr>t. 