{'fraction_non_alphanumeric': 0.05128205128205128, 'fraction_numerical': 0.037037037037037035, 'mean_word_length': 4.021428571428571, 'pattern_counts': {'":': 0, '<': 3, '<?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}}
Search for Cosmic Strings in Cosmic Microwave Background Anisotropies

We have searched the first-year Wilkinson Microwave Anisotropy Probe (WMAP) W-band CMB anisotropy map for evidence of cosmic strings. We set a limit on the dimensionless string parameter δ of δ = 8πGμγβ < 2.9 × 10-5 for the statistical search for a significant number of strings in the map. We also set a limit using the uniform-distribution-of-strings model in the WMAP data with δ = 8πGμγβ < 7.3 × 10-5 at the 95% confidence level (CL). The pattern search technique we developed in this paper set a limit δ = 8πGμγβ < 1.5 × 10-5 at the 95% CL, which corresponds to a limit on the symmetry-breaking energy scale of ≲1016 GeV/⟨γβ⟩.