- 
								[1]
								M. Beneke and J. Rohrwild, Eur. Phys. J. C, 71: 1818 (2011), arXiv:1110.3228[hep-ph 
- 
								[2]
								Y. M. Wang, JHEP, 1609: 159 (2016), arXiv:1606.03080[hep-ph 
- 
								[3]
								G. P. Korchemsky, D. Pirjol, and T. M. Yan, Phys. Rev. D, 61: 114510 (2000), arXiv:hep-ph/9911427 
- 
								[4]
								S. Descotes-Genon and C. T. Sachrajda, Nucl. Phys. B, 650: 356 (2003), arXiv:hep-ph/0209216 
- 
								[5]
								E. Lunghi, D. Pirjol, and D. Wyler, Nucl. Phys. B, 649: 349 (2003), arXiv:hep-ph/0210091 
- 
								[6]
								S. W. Bosch, R. J. Hill, B. O. Lange et al., Phys. Rev. D, 67: 094014 (2003), arXiv:hepph/0301123 
- 
								[7]
								Z. L. Liu and M. Neubert, JHEP, 06: 060 (2020), arXiv:2003.03393[hep-ph 
- 
								[8]
								J. M. Henn, G. P. Korchemsky, and B. Mistlberger, JHEP, 04: 018 (2020), arXiv:1911.10174[hep-th 
- 
								[9]
								K. Chetyrkin and A. Grozin, Nucl. Phys. B, 666: 289-302 (2003), arXiv:hep-ph/0303113[hepph 
- 
								[10]
								T. Becher and M. Neubert, JHEP, 06: 081 (2009), arXiv:0903.1126[hep-ph 
- 
								[11]
								R. Brüser, Z. L. Liu, and M. Stahlhofen, JHEP, 03: 071 (2020), arXiv:1911.04494[hep-ph 
- 
								[12]
								V. M. Braun, Y. Ji, and A. N. Manashov, Phys. Rev. D, 100(1): 014023 (2019), arXiv:1905.04498[hep-ph 
- 
								[13]
								A. M. Galda and M. Neubert, arXiv: 2006.05428[hep-ph] 
- 
								[14]
								V. M. Braun and A. Khodjamirian, Phys. Lett. B, 718: 1014 (2013), arXiv:1210.4453[hep-ph 
- 
								[15]
								M. Beneke, V. M. Braun, Y. Ji et al., JHEP, 1807: 154 (2018), arXiv:1804.04962[hep-ph 
- 
								[16]
								P. Ball and E. Kou, JHEP, 0304: 029 (2003), arXiv:hep-ph/0301135 
- 
								[17]
								Y. M. Wang and Y. L. Shen, JHEP, 1805: 184 (2018), arXiv:1803.06667[hep-ph 
- 
								[18]
								Y. L. Shen, Z. T. Zou, and Y. B. Wei, Phys. Rev. D, 99(1): 016004 (2019), arXiv:1811.08250[hep-ph 
- 
								[19]
								A. Grozin and M. Neubert, Phys. Rev. D, 55: 272-290 (1997), arXiv:hep-ph/9607366[hep-ph 
- 
								[20]
								B. O. Lange and M. Neubert, Phys. Rev. Lett., 91: 102001 (2003), arXiv:hep-ph/0303082 
- 
								[21]
								H. Kawamura and K. Tanaka, Phys. Rev. D, 81: 114009 (2010), arXiv:1002.1177[hep-ph 
- 
								[22]
								S. J. Lee and M. Neubert, Phys. Rev. D, 72: 094028 (2005), arXiv:hep-ph/0509350[hep-ph 
- 
								[23]
								V. M. Braun, Y. Ji, and A. N. Manashov, arXiv: 1912.03210[hep-ph] 
- 
								[24]
								G. Bell, T. Feldmann, Y. M. Wang et al., JHEP, 11: 191 (2013), arXiv:1308.6114[hep-ph 
- 
								[25]
								V. Braun and A. Manashov, Phys. Lett. B, 731: 316-319 (2014), arXiv:1402.5822[hep-ph 
- 
								[26]
								V. M. Braun, Y. Ji, and A. N. Manashov, JHEP, 06: 017 (2018), arXiv:1804.06289[hep-th 
- 
								[27]
								C. W. Bauer, S. Fleming, D. Pirjol et al., Phys. Rev. D, 63: 114020 (2001), arXiv:hep-ph/0011336[hep-ph 
- 
								[28]
								Y. M. Wang and Y. L. Shen, Nucl. Phys. B, 898: 563 (2015), arXiv:1506.00667[hep-ph 
- 
								[29]
								Y. M. Wang, Y. B. Wei, Y. L. Shen et al., JHEP, 1706: 062 (2017), arXiv:1701.06810[hep-ph 
- 
								[30]
								C. D. Lü, Y. L. Shen, Y. M. Wang et al., JHEP, 01: 024 (2019), arXiv:1810.00819[hep-ph 
- 
								[31]
								J. Gao, C. D. Lü, Y. L. Shen et al., Phys. Rev. D, 101(7): 074035 (2020), arXiv:1907.11092[hep-ph