1 Erratum to: Eur. Phys. J. C (2018) 78:533 https://doi.org/10.1140/epjc/s10052-018-6006-7

In the original version of this article, some corrections had not been implemented. The following changes were necessary:

Lines 463, 468, 520, 568, 605, 643 “Parameters that satisfy Eqs. (30)” have been changed to “Parameters that satisfy Eqs. (30)–(32)”.

Line 499 “Using Eqs. (5), (9), and (32),” has been changed to “Using Eqs. (5), (9), and (34),”.

Line 503 “The field equation Eq. (31) of the Page and Tupper” has been changed to “The field equation Eq. (33) of the Page and Tupper”.

Line 505 “Eq. (32) of the Page and Tupper” has been changed to “Eq. (34) of the Page and Tupper”.

Line 527 “We see from Eq. (40)” has been changed to “We see from Eq. (42)”.

Line 531 “from Eq. (41)” has been changed to “from Eq. (43)”.

Line 542 “Using Eqs. (5), (9), and (43),” has been changed to “Using Eqs. (5), (9), and (45),”.

Lines 553 and 554 “and Eq. (42)” have been changed to “and Eq. (44)”.

Line 555 “The Lagrangian in Eq. (43)” has been changed to “The Lagrangian in Eq. (45)”.

Line 585 “Using Eqs. (5), (9), and (52),” has been changed to “Using Eqs. (5), (9), and (56),”.

Line 589 “The field equation Eq. (51)” has been changed to “The field equation Eq. (55)”.

Line 591 “The particle Lagrangian in Eq. (52)” has been changed to “The particle Lagrangian in Eq. (56)”.

41. Lines 624 and 629 “Using Eqs. (5), (9), and (56),” have been changed to “Using Eqs. (5), (9), and (64),”.

42. Lines 628 and 652 “The field equation Eq. (55)” have been changed to “The field equation Eq. (63)”.

The original article has been corrected.