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Next-to-next-to-leading-order QCD corrections to chi(c0,2) -> gamma gamma
Sang, WL; Feng, F; Jia, Y; Liang, SR; Sang, WL (reprint author), Southwest Univ, Sch 1 Phys Sci & Technol, Chongqing 400700, Peoples R China.; Sang, WL (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
2016
发表期刊PHYSICAL REVIEW D
卷号94期号:11页码:111501
文章类型Article
摘要We calculate the next-to-next-to-leading-order perturbative corrections to P-wave quarkonia annihilation decay to two photons, in the framework of nonrelativistic QCD factorization. The order-alpha(2)(s) short-distance coefficients associated with each helicity amplitude are presented in a semianalytic form, including the "light-by-light" contributions. With sizable next-to-next-to-leading-order corrections, we find a disquieting discrepancy when confronting our state-of-the-art predictions with the latest BESIII measurements, which especially fail to account for the measured chi(c2) -> gamma gamma width. Incorporating the effects of spin-dependent forces would even exacerbate the situation, since it lifts the degeneracy between the nonperturbative nonrelativistic QCD matrix elements of chi(c0) and chi(c2) toward the wrong direction. We also present the order-alpha(2)(s) predictions to chi(b2) -> gamma gamma, which await the future experimental test.
学科领域Astronomy & Astrophysics ; Physics
资助者National Natural Science Foundation of China [11447031, 11605144, 11505285] ; National Natural Science Foundation of China [11447031, 11605144, 11505285] ; National Natural Science Foundation of China [11447031, 11605144, 11505285] ; National Natural Science Foundation of China [11447031, 11605144, 11505285] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; IHEP Innovation Grant [Y4545170Y2] ; IHEP Innovation Grant [Y4545170Y2] ; IHEP Innovation Grant [Y4545170Y2] ; IHEP Innovation Grant [Y4545170Y2] ; State Key Lab for Electronics and Particle Detectors ; State Key Lab for Electronics and Particle Detectors ; State Key Lab for Electronics and Particle Detectors ; State Key Lab for Electronics and Particle Detectors ; National Natural Science Foundation of China [11447031, 11605144, 11505285] ; National Natural Science Foundation of China [11447031, 11605144, 11505285] ; National Natural Science Foundation of China [11447031, 11605144, 11505285] ; National Natural Science Foundation of China [11447031, 11605144, 11505285] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; IHEP Innovation Grant [Y4545170Y2] ; IHEP Innovation Grant [Y4545170Y2] ; IHEP Innovation Grant [Y4545170Y2] ; IHEP Innovation Grant [Y4545170Y2] ; State Key Lab for Electronics and Particle Detectors ; State Key Lab for Electronics and Particle Detectors ; State Key Lab for Electronics and Particle Detectors ; State Key Lab for Electronics and Particle Detectors
DOIhttp://dx.doi.org/10.1103/PhysRevD.94.111501
关键词[WOS]RELATIVISTIC QUARK-MODEL ; B-C-MESON ; ELECTROMAGNETIC ANNIHILATION ; MATHEMATICA PACKAGE ; 2-PHOTON DECAYS ; LEPTONIC DECAYS ; HEAVY QUARKONIA ; RATES ; AMPLITUDES ; CHARMONIUM
收录类别SCI
语种英语
资助者National Natural Science Foundation of China [11447031, 11605144, 11505285] ; National Natural Science Foundation of China [11447031, 11605144, 11505285] ; National Natural Science Foundation of China [11447031, 11605144, 11505285] ; National Natural Science Foundation of China [11447031, 11605144, 11505285] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; IHEP Innovation Grant [Y4545170Y2] ; IHEP Innovation Grant [Y4545170Y2] ; IHEP Innovation Grant [Y4545170Y2] ; IHEP Innovation Grant [Y4545170Y2] ; State Key Lab for Electronics and Particle Detectors ; State Key Lab for Electronics and Particle Detectors ; State Key Lab for Electronics and Particle Detectors ; State Key Lab for Electronics and Particle Detectors ; National Natural Science Foundation of China [11447031, 11605144, 11505285] ; National Natural Science Foundation of China [11447031, 11605144, 11505285] ; National Natural Science Foundation of China [11447031, 11605144, 11505285] ; National Natural Science Foundation of China [11447031, 11605144, 11505285] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Natural Science Foundation of ChongQing [cstc2014jcyjA00029] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; Fundamental Research Funds for the Central Universities [XDJK2016C067] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (CRC110 by DFG) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; National Natural Science Foundation of China (NSFC) [11475188, 11261130311, 11621131001] ; IHEP Innovation Grant [Y4545170Y2] ; IHEP Innovation Grant [Y4545170Y2] ; IHEP Innovation Grant [Y4545170Y2] ; IHEP Innovation Grant [Y4545170Y2] ; State Key Lab for Electronics and Particle Detectors ; State Key Lab for Electronics and Particle Detectors ; State Key Lab for Electronics and Particle Detectors ; State Key Lab for Electronics and Particle Detectors
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21454
专题理论物理所SCI论文
通讯作者Sang, WL (reprint author), Southwest Univ, Sch 1 Phys Sci & Technol, Chongqing 400700, Peoples R China.; Sang, WL (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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Sang, WL,Feng, F,Jia, Y,et al. Next-to-next-to-leading-order QCD corrections to chi(c0,2) -> gamma gamma[J]. PHYSICAL REVIEW D,2016,94(11):111501.
APA Sang, WL,Feng, F,Jia, Y,Liang, SR,Sang, WL ,&Sang, WL .(2016).Next-to-next-to-leading-order QCD corrections to chi(c0,2) -> gamma gamma.PHYSICAL REVIEW D,94(11),111501.
MLA Sang, WL,et al."Next-to-next-to-leading-order QCD corrections to chi(c0,2) -> gamma gamma".PHYSICAL REVIEW D 94.11(2016):111501.
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