<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><div class=""></div><div class=""><br class=""></div><div class="">Look at the blue boxes (isovector) in the 1+- column. The low-lying guy is the b_1(1235) — obviously it’s too heavy because the quarks are too heavy. Above that there are two boxes basically on top of each other and then another box above that. This indicates there might be two nearby states?</div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">Quark-model like assignments for these states are discussed in </div><div class=""><a href="https://journals.aps.org/prd/pdf/10.1103/PhysRevD.84.074023" class="">https://journals.aps.org/prd/pdf/10.1103/PhysRevD.84.074023</a></div><div class="">where the first excited state in the isovector 1+- channel is identified (as Curtis has it) as likely a radial excitation of the qqbar P-wave</div><div class=""><br class=""></div><div class="">With respect to the second 1+- state that is very close to the first excitation -- this guy isn’t identified in the paper referenced above. It wasn’t totally clear what this guy is. You can see from the quark mass dependence shown below (focus on the blue)</div><div class=""><br class=""></div><div class=""></div></body></html>