Nuclear orientation of ${}^{76}{As}$

γ

-ray angular distributions in the decay of oriented

{}^{76}{As}

have been studied. The

{}^{76}{As}

was oriented in iron at temperatures down to 4 mK. The first forbidden

β

decays to the

2^{+}

2^{+}

, and

2^{+}

states of

{}^{76}{Se}

were deduced to be of predominantly

L = 0

multipole character, in disagreement with previous work in the case of decays to the

2^{+}

state. The

\frac{E 2}{M 1}

multipole mixing ratios of the 657 and 1229 keV transitions were determined to be

δ (657) = + 5.2 \pm 0.2

and

δ (1229) = - 0.49 \pm 0.05

. The angular distribution of the 563-keV transition is more consistent with systematics if that transition is assigned as the

0^{+}

2^{+}

transition of

{}^{76}{Se}

rather than as the

2^{+}

0^{+}

transition of

{}^{76}{Ge}

. Spin assignments for the 2656- and 2670-keV levels are suggested to be 1 and 2, respectively.

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Nuclear orientation ofAs76