<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Hello HPS,<div><br></div><div>Just noticed in Phys. Rev. D. an interesting paper by Fradette, Pospelov, Pradler and Ritz, (<span style="font-size: 12px; text-indent: -20px;">Fradette, Anthony, Maxim Pospelov, Josef Pradler, and Adam Ritz. 2014. “Cosmological Constraints on Very Dark Photons.” </span><i style="font-size: 12px; text-indent: -20px;">Physical Review D</i><span style="font-size: 12px; text-indent: -20px;"> 90 (3): 035022. doi:10.1103/PhysRevD.90.035022.) </span>showing how some of the cosmic constraints impact the heavy photon parameter space. The good news: it only excludes some of the extremely weakly coupled areas. See plot.</div><div><br></div><div>Just thought I'd pass this along, perhaps useful for a future presentation.</div><div><br></div><div>Best,</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>Maurik</div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><br></div><div><img apple-inline="yes" id="36D64C9C-DD8D-44BC-A45A-55E7369B8F59" height="839" width="473" apple-width="yes" apple-height="yes" src="cid:429F7284-0DA2-4DE6-9EE2-F6259D088749"></div></body></html>