{'fraction_non_alphanumeric': 0.056818181818181816, 'fraction_numerical': 0.01948051948051948, 'mean_word_length': 4.460176991150442, 'pattern_counts': {'":': 0, '<': 1, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
New search for the spontaneous conversion of muonium to antimuonium.

To search for spontaneous conversion of muonium to antimuonium with very low background, a new signature was implemented that required the coincident detection of the decay products of the antimuonium atom, the energetic e- and the atomic e+. No conversion events were seen, which sets an improved upper limit of 6.5 x 10(-7) (90% C.L.) on the conversion probability. The corresponding limit on the coupling constant, using a V - A form for the conversion Hamiltonian, is G(MMBAR) < 0.16G(F) (90% C.L.), where G(F) is the Fermi coupling constant.