This branch is defined by the Y-Haplotree at FamilyTreeDNA as A-V168. There, it is the child of the A-L1090 branch.
This branch is defined by YFull as A1. There, it is the child of the A branch.
YP3864, L1053, V1522, Y9712, Y9683, P305, YP3862, L1084, V2842, Y10075, V241, Y10061, Y9685, Y10040, Y9863, Y10201, Y9768, Y9647, Y9856, Y10090, V1793, Y9583, YP3854, L986, Z8845, V3624, V3653, Y10195, L989, V3832, V2070, YP3855, V238, YP3866, V2732, YP3850, Y10085, Y9874, Y9969, Y9794, Y9950, Y9659, V3315, Y9614, Y9669, Y9643, Y9974, V3682, Y9947, YP3853, Y9807, Y9558, Y10019, YP3856, V2613, Y10034, YP3846, YP3867, YP3857, Y9692, Y10168, Y9872, Y10177, YP3843, YP3868, YP3848, V3711, Y10039, YP3860, V1360, YP3842, Y9988, Y9824, V2368, Y9799, Y9854, YP3863, Y9855, Y9569, V3222, Y9913, Y9904, Z8834, Y9793, Y9873, Y9735, Y9747, V250, YP3841, Y9671, V168, Y9639, Y9694, Y9877, Z9661, V4189, Y10119, Y9623, Y10188, Y9808, Y9759, Y9814, Y10053, Y9956, L1112, Y9603, V3937, Y9910, V3955, Y9898, Y10068, Y9971, Y9972, Y9805, V2349, V2980, Y9785, Y10073, Y9953, Y9622, A4825, Y9886, Y9905, V2843, Y10197, Y9697, V1130, Y9661, Y13320, Y9457, L1004, Y9786, A4739, YP3859, YP3845, L1005, Y9998, Y10169, Z9719, Y9513, L1002, A4826, Y9591, YP3852, Y9619, L1009, YP3851, Y9620, Y9977, Y9624, YP3858, Z8830, YP3840, Y9635, Y9870, A4698, Y10156, YP3849, V174, Z9116, Z9582, Y9718, A4733, Y9895, Y9567, L985, Y10220, Y9456, V171, YP3844, Y9909, Y14726, A4719, Z8529, Y9530, A4709, Z9045, Y9846, V161, Y9490, Y9800, Y13319, Y9543, Y9501, Y10036, Z8743, Y9486, Z9072, Z9709, Y9680, YP3891, Z8772, V167, Z9656, Y9713, Y9798, Y9843, Y9986, Y9592, Y10219, Y9756, Z7768, Y1459, M9072
Peer reviewed sources have not been added for this branch yet. If you know of one I have missed, please link to it in the comments.