PMID- 33034478
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201012
IS  - 1079-7114 (Electronic)
IS  - 0031-9007 (Linking)
VI  - 125
IP  - 13
DP  - 2020 Sep 25
TI  - Factorization Theorem Connecting the Light-Cone Distribution Amplitudes of 
      Heavy-Flavor Mesons in QCD and Heavy-Quark Effective Theory.
PG  - 132001
LID - 10.1103/PhysRevLett.125.132001 [doi]
AB  - The light-cone distribution amplitude (LCDA) of a heavy-light meson defined in 
      heavy quark effective theory (HQET) is a fundamental nonperturbative input to 
      account for innumerable B meson exclusive decay and production processes. On the 
      other hand, the conventional heavy-flavored meson LCDA defined in QCD also 
      ubiquitously enters the factorization formula for hard exclusive B production 
      processes. Inspired by the observation that these two LCDAs exhibit the identical 
      infrared behaviors, yet differ in the ultraviolet scale of order m_b or 
      greater, we propose a novel factorization theorem for the heavy-light mesons, 
      that the LCDA defined in QCD can be further expressed as a convolution between 
      the LCDA in HQET and a perturbatively calculable coefficient function thanks to 
      asymptotic freedom. This refactorization program can be invoked to fully 
      disentangle the effects from three disparate scales Q, m_b, and Lambda_QCD for a 
      hard exclusive B production process, particularly to facilitate the resummation 
      of logarithms of type lnQ/m_b and lnm_b/Lambda_QCD in a systematic fashion.
FAU - Ishaq, Saadi
AU  - Ishaq S
AD  - Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, 
      China.
AD  - School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 
      100049, China.
AD  - Department of Physics, School of Natural Sciences (SNS), National University of 
      Sciences and Technology (NUST), Sector H-12, Islamabad 44000, Pakistan.
FAU - Jia, Yu
AU  - Jia Y
AD  - Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, 
      China.
AD  - School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 
      100049, China.
FAU - Xiong, Xiaonu
AU  - Xiong X
AD  - School of Physics and Electronics, Central South University, Changsha 418003, 
      China.
AD  - Institute for Advanced Simulation, Institut fur Kernphysik and Julich Center for 
      Hadron Physics, Forschungszentrum Julich, D-52425 Julich, Germany.
FAU - Yang, De-Shan
AU  - Yang DS
AD  - Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, 
      China.
AD  - School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 
      100049, China.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Phys Rev Lett
JT  - Physical review letters
JID - 0401141
SB  - IM
EDAT- 2020/10/10 06:00
MHDA- 2020/10/10 06:01
CRDT- 2020/10/09 12:09
PHST- 2020/06/26 00:00 [received]
PHST- 2020/07/24 00:00 [accepted]
PHST- 2020/10/09 12:09 [entrez]
PHST- 2020/10/10 06:00 [pubmed]
PHST- 2020/10/10 06:01 [medline]
AID - 10.1103/PhysRevLett.125.132001 [doi]
PST - ppublish
SO  - Phys Rev Lett. 2020 Sep 25;125(13):132001. doi: 10.1103/PhysRevLett.125.132001.