Long-Lived Heavy Quarks: A Review

Table 3

Partial widths and decay lengths for a new heavy quark 𝑄 decaying to light quarks via on-shell charged currents 𝑄→𝑞𝑊, with 𝑚_𝑞=0 and 173.2 GeV/𝑐² and |𝜅_𝑄𝑞|=1, as computed from (1).

𝑚𝑄 (GeV/𝑐^2)	Γ (GeV)	𝑐𝜏×10^12 (𝜇m)
300	8.73 (2.39)	22.91 (83.85)
400	20.90 (11.14)	9.57 (17.96)
500	40.94 (27.86)	4.89 (7.18)
600	70.81 (54.52)	2.82 (3.67)
700	112.50 (93.06)	1.78 (2.15)
800	167.97 (147.43)	1.19 (1.38)
900	239.18 (213.57)	83.62 (9.36) ×  10^−1
1000	328.12 (299.46)	6.10 (6.68) ×  10^−1
1100	436.74 (405.05)	4.58 (4.94) ×  10^−1
1200	567.02 (532.31)	3.53 (3.76) ×  10^−1
1300	720.93 (683.21)	2.77 (2.92) ×  10^−1
1400	900.43 (859.72)	2.22 (2.33) ×  10^−1
1500	1107.5 (1063.79)	1.81 (1.88) ×  10^−1
1600	1344.1 (1297.4)	1.49 (1.54) ×  10^−1
1700	1612.2 (1562.5)	1.24 (1.28) ×  10^−1
1800	1913.8 (1861.1)	1.05 (1.07) ×  10^−1