摘要
The production of the X（3872） as a hadronic molecule in hadron colliders is clarified. We show that the conclusion of Bignamini et al., Phys. Rev. Lett. 103（2009） 162001, that the production of the X（3872） at high pT implies a non-molecular structure, does not hold. In particular, using the well understood properties of the deuteron wave function as an example, we identify the relevant scales in the production process.
The production of the X（3872） as a hadronic molecule in hadron colliders is clarified. We show that the conclusion of Bignamini et al., Phys. Rev. Lett. 103（2009） 162001, that the production of the X（3872） at high pT implies a non-molecular structure, does not hold. In particular, using the well understood properties of the deuteron wave function as an example, we identify the relevant scales in the production process.
基金
Supported by DFG and NSFC through funds provided to the Sino-German CRC 110 “Symmetries and the Emergence of Structure in QCD”(NSFC(11621131001)
DFG(TRR110))
by NSFC(11647601)
by the CAS Key Research Program of Frontier Sciences(QYZDBSSW-SYS013)
by the Thousand Talents Plan for Young Professionals
by the CAS President’s International Fellowship Initiative(PIFI)(2017VMA0025)
by Spanish Ministerio de Economía y Competitividad and European FEDER under contracts FIS2014-51948-C2-1-P and SEV-2014-0398
