Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2989852849', 'doi': 'https://doi.org/10.1007/jhep05(2020)055', 'title': 'Enhanced long-lived dark photon signals at the LHC', 'display_name': 'Enhanced long-lived dark photon signals at the LHC', 'publication_year': 2020, 'publication_date': '2020-05-01', 'ids': {'openalex': 'https://openalex.org/W2989852849', 'doi': 'https://doi.org/10.1007/jhep05(2020)055', 'mag': '2989852849'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1007/jhep05(2020)055', 'pdf_url': 'https://link.springer.com/content/pdf/10.1007/JHEP05(2020)055.pdf', 'source': {'id': 'https://openalex.org/S187585107', 'display_name': 'Journal of High Energy Physics', 'issn_l': '1029-8479', 'issn': ['1029-8479', '1126-6708', '1127-2236'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319965', 'host_organization_name': 'Springer Nature', 'host_organization_lineage': ['https://openalex.org/P4310319965'], 'host_organization_lineage_names': ['Springer Nature'], 'type': 'journal'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['arxiv', 'crossref', 'datacite', 'doaj'], 'open_access': {'is_oa': True, 'oa_status': 'diamond', 'oa_url': 'https://link.springer.com/content/pdf/10.1007/JHEP05(2020)055.pdf', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5100675111', 'display_name': 'Mingxuan Du', 'orcid': 'https://orcid.org/0000-0002-1938-5794'}, 'institutions': [{'id': 'https://openalex.org/I881766915', 'display_name': 'Nanjing University', 'ror': 'https://ror.org/01rxvg760', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I881766915']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Mingxuan Du', 'raw_affiliation_strings': ['Department of Physics, Nanjing University, Nanjing, 210093, China'], 'affiliations': [{'raw_affiliation_string': 'Department of Physics, Nanjing University, Nanjing, 210093, China', 'institution_ids': ['https://openalex.org/I881766915']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5060273489', 'display_name': 'Zuowei Liu', 'orcid': 'https://orcid.org/0000-0002-8377-9317'}, 'institutions': [{'id': 'https://openalex.org/I881766915', 'display_name': 'Nanjing University', 'ror': 'https://ror.org/01rxvg760', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I881766915']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Zuowei Liu', 'raw_affiliation_strings': ['Department of Physics, Nanjing University, Nanjing, 210093, China'], 'affiliations': [{'raw_affiliation_string': 'Department of Physics, Nanjing University, Nanjing, 210093, China', 'institution_ids': ['https://openalex.org/I881766915']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5054136507', 'display_name': 'Van Que Tran', 'orcid': 'https://orcid.org/0000-0003-4643-4050'}, 'institutions': [{'id': 'https://openalex.org/I881766915', 'display_name': 'Nanjing University', 'ror': 'https://ror.org/01rxvg760', 'country_code': 'CN', 'type': 'education', 'lineage': ['https://openalex.org/I881766915']}], 'countries': ['CN'], 'is_corresponding': False, 'raw_author_name': 'Van Que Tran', 'raw_affiliation_strings': ['Department of Physics, Nanjing University, Nanjing, 210093, China'], 'affiliations': [{'raw_affiliation_string': 'Department of Physics, Nanjing University, Nanjing, 210093, China', 'institution_ids': ['https://openalex.org/I881766915']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 0, 'currency': 'USD', 'value_usd': 0, 'provenance': 'doaj'}, 'apc_paid': None, 'fwci': 1.06, 'has_fulltext': True, 'fulltext_origin': 'pdf', 'cited_by_count': 7, 'citation_normalized_percentile': {'value': 0.999878, 'is_in_top_1_percent': True, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 82, 'max': 84}, 'biblio': {'volume': '2020', 'issue': '5', 'first_page': None, 'last_page': None}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10048', 'display_name': 'Particle physics theoretical and experimental studies', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/3106', 'display_name': 'Nuclear and High Energy Physics'}, 'field': {'id': 'https://openalex.org/fields/31', 'display_name': 'Physics and Astronomy'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10048', 'display_name': 'Particle physics theoretical and experimental studies', 'score': 0.9999, 'subfield': {'id': 'https://openalex.org/subfields/3106', 'display_name': 'Nuclear and High Energy Physics'}, 'field': {'id': 'https://openalex.org/fields/31', 'display_name': 'Physics and Astronomy'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T11090', 'display_name': 'Dark Matter and Cosmic Phenomena', 'score': 0.9996, 'subfield': {'id': 'https://openalex.org/subfields/3106', 'display_name': 'Nuclear and High Energy Physics'}, 'field': {'id': 'https://openalex.org/fields/31', 'display_name': 'Physics and Astronomy'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10095', 'display_name': 'Cosmology and Gravitation Theories', 'score': 0.998, 'subfield': {'id': 'https://openalex.org/subfields/3103', 'display_name': 'Astronomy and Astrophysics'}, 'field': {'id': 'https://openalex.org/fields/31', 'display_name': 'Physics and Astronomy'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/hidden-sector', 'display_name': 'Hidden sector', 'score': 0.84982944}, {'id': 'https://openalex.org/keywords/hypercharge', 'display_name': 'Hypercharge', 'score': 0.7137522}, {'id': 'https://openalex.org/keywords/dark-photon', 'display_name': 'Dark photon', 'score': 0.58026195}], 'concepts': [{'id': 'https://openalex.org/C121332964', 'wikidata': 'https://www.wikidata.org/wiki/Q413', 'display_name': 'Physics', 'level': 0, 'score': 0.9107095}, {'id': 'https://openalex.org/C27243311', 'wikidata': 'https://www.wikidata.org/wiki/Q16919810', 'display_name': 'Hidden sector', 'level': 3, 'score': 0.84982944}, {'id': 'https://openalex.org/C109214941', 'wikidata': 'https://www.wikidata.org/wiki/Q18334', 'display_name': 'Particle physics', 'level': 1, 'score': 0.81266534}, {'id': 'https://openalex.org/C101454708', 'wikidata': 'https://www.wikidata.org/wiki/Q17106019', 'display_name': 'Standard Model (mathematical formulation)', 'level': 3, 'score': 0.75332546}, {'id': 'https://openalex.org/C159249277', 'wikidata': 'https://www.wikidata.org/wiki/Q79925', 'display_name': 'Dark matter', 'level': 2, 'score': 0.7514882}, {'id': 'https://openalex.org/C40263606', 'wikidata': 'https://www.wikidata.org/wiki/Q105580', 'display_name': 'Gauge boson', 'level': 3, 'score': 0.722066}, {'id': 'https://openalex.org/C124989549', 'wikidata': 'https://www.wikidata.org/wiki/Q1194002', 'display_name': 'Hypercharge', 'level': 3, 'score': 0.7137522}, {'id': 'https://openalex.org/C87668248', 'wikidata': 'https://www.wikidata.org/wiki/Q40605', 'display_name': 'Large Hadron Collider', 'level': 2, 'score': 0.63653624}, {'id': 'https://openalex.org/C2780571165', 'wikidata': 'https://www.wikidata.org/wiki/Q19358317', 'display_name': 'Dark photon', 'level': 3, 'score': 0.58026195}, {'id': 'https://openalex.org/C184748400', 'wikidata': 'https://www.wikidata.org/wiki/Q2599934', 'display_name': 'Physics beyond the Standard Model', 'level': 2, 'score': 0.55931824}, {'id': 'https://openalex.org/C79118098', 'wikidata': 'https://www.wikidata.org/wiki/Q43101', 'display_name': 'Boson', 'level': 2, 'score': 0.5229662}, {'id': 'https://openalex.org/C159317903', 'wikidata': 'https://www.wikidata.org/wiki/Q3198', 'display_name': 'Photon', 'level': 2, 'score': 0.51850307}, {'id': 'https://openalex.org/C152290109', 'wikidata': 'https://www.wikidata.org/wiki/Q2033879', 'display_name': 'Collider', 'level': 2, 'score': 0.4464954}, {'id': 'https://openalex.org/C52233224', 'wikidata': 'https://www.wikidata.org/wiki/Q44363', 'display_name': 'Fermion', 'level': 2, 'score': 0.38801572}, {'id': 'https://openalex.org/C40976572', 'wikidata': 'https://www.wikidata.org/wiki/Q2330873', 'display_name': 'Gauge (firearms)', 'level': 2, 'score': 0.3475382}, {'id': 'https://openalex.org/C185544564', 'wikidata': 'https://www.wikidata.org/wiki/Q81197', 'display_name': 'Nuclear physics', 'level': 1, 'score': 0.32468632}, {'id': 'https://openalex.org/C181830111', 'wikidata': 'https://www.wikidata.org/wiki/Q214850', 'display_name': 'Gauge theory', 'level': 2, 'score': 0.22216952}, {'id': 'https://openalex.org/C62520636', 'wikidata': 'https://www.wikidata.org/wiki/Q944', 'display_name': 'Quantum mechanics', 'level': 1, 'score': 0.08431488}, {'id': 'https://openalex.org/C166957645', 'wikidata': 'https://www.wikidata.org/wiki/Q23498', 'display_name': 'Archaeology', 'level': 1, 'score': 0.0}, {'id': 'https://openalex.org/C95457728', 'wikidata': 'https://www.wikidata.org/wiki/Q309', 'display_name': 'History', 'level': 0, 'score': 0.0}], 'mesh': [], 'locations_count': 4, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.1007/jhep05(2020)055', 'pdf_url': 'https://link.springer.com/content/pdf/10.1007/JHEP05(2020)055.pdf', 'source': {'id': 'https://openalex.org/S187585107', 'display_name': 'Journal of High Energy Physics', 'issn_l': '1029-8479', 'issn': ['1029-8479', '1126-6708', '1127-2236'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319965', 'host_organization_name': 'Springer Nature', 'host_organization_lineage': ['https://openalex.org/P4310319965'], 'host_organization_lineage_names': ['Springer Nature'], 'type': 'journal'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': False, 'landing_page_url': 'https://doaj.org/article/454d29164f5d41568c698f1cd61a2ce0', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306401280', 'display_name': 'DOAJ (DOAJ: Directory of Open Access Journals)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': None, 'host_organization_name': None, 'host_organization_lineage': [], 'host_organization_lineage_names': [], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': True, 'landing_page_url': 'https://arxiv.org/abs/1912.00422', 'pdf_url': 'https://arxiv.org/pdf/1912.00422', 'source': {'id': 'https://openalex.org/S4306400194', 'display_name': 'arXiv (Cornell University)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I205783295', 'host_organization_name': 'Cornell University', 'host_organization_lineage': ['https://openalex.org/I205783295'], 'host_organization_lineage_names': ['Cornell University'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': 'submittedVersion', 'is_accepted': False, 'is_published': False}, {'is_oa': False, 'landing_page_url': 'https://api.datacite.org/dois/10.48550/arxiv.1912.00422', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4393179698', 'display_name': 'DataCite API', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I4210145204', 'host_organization_name': 'DataCite', 'host_organization_lineage': ['https://openalex.org/I4210145204'], 'host_organization_lineage_names': ['DataCite'], 'type': 'metadata'}, 'license': None, 'license_id': None, 'version': None}], 'best_oa_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1007/jhep05(2020)055', 'pdf_url': 'https://link.springer.com/content/pdf/10.1007/JHEP05(2020)055.pdf', 'source': {'id': 'https://openalex.org/S187585107', 'display_name': 'Journal of High Energy Physics', 'issn_l': '1029-8479', 'issn': ['1029-8479', '1126-6708', '1127-2236'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310319965', 'host_organization_name': 'Springer Nature', 'host_organization_lineage': ['https://openalex.org/P4310319965'], 'host_organization_lineage_names': ['Springer Nature'], 'type': 'journal'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [{'id': 'https://metadata.un.org/sdg/10', 'score': 0.63, 'display_name': 'Reduced inequalities'}, {'id': 'https://metadata.un.org/sdg/16', 'score': 0.43, 'display_name': 'Peace, justice, and strong institutions'}], 'grants': [], 'datasets': [], 'versions': ['https://openalex.org/W2989852849', 'https://openalex.org/W3102189449'], 'referenced_works_count': 59, 'referenced_works': ['https://openalex.org/W1144162322', 'https://openalex.org/W1494889718', 'https://openalex.org/W1519570861', 'https://openalex.org/W1990681251', 'https://openalex.org/W2001631443', 'https://openalex.org/W2008560438', 'https://openalex.org/W2013812747', 'https://openalex.org/W2023371755', 'https://openalex.org/W2039216821', 'https://openalex.org/W2045750740', 'https://openalex.org/W2049591215', 'https://openalex.org/W2065691754', 'https://openalex.org/W2070493360', 'https://openalex.org/W2087373051', 'https://openalex.org/W2095476093', 'https://openalex.org/W2102608136', 'https://openalex.org/W2103442489', 'https://openalex.org/W2110999179', 'https://openalex.org/W2125102738', 'https://openalex.org/W2125987202', 'https://openalex.org/W2132625607', 'https://openalex.org/W2150615955', 'https://openalex.org/W2159449603', 'https://openalex.org/W2169672164', 'https://openalex.org/W2201873166', 'https://openalex.org/W2315572532', 'https://openalex.org/W2332253580', 'https://openalex.org/W2522099348', 'https://openalex.org/W2586766909', 'https://openalex.org/W2595415478', 'https://openalex.org/W2767671054', 'https://openalex.org/W2783186392', 'https://openalex.org/W2788693441', 'https://openalex.org/W2794576836', 'https://openalex.org/W2804846283', 'https://openalex.org/W2806147358', 'https://openalex.org/W2808809173', 'https://openalex.org/W2883065255', 'https://openalex.org/W2886966274', 'https://openalex.org/W2887590359', 'https://openalex.org/W2887780866', 'https://openalex.org/W2899140785', 'https://openalex.org/W2911715452', 'https://openalex.org/W2936647898', 'https://openalex.org/W2972573792', 'https://openalex.org/W2981048963', 'https://openalex.org/W3019227841', 'https://openalex.org/W3098024992', 'https://openalex.org/W3098779779', 'https://openalex.org/W3100693578', 'https://openalex.org/W3100721198', 'https://openalex.org/W3101082815', 'https://openalex.org/W3103059447', 'https://openalex.org/W3103754130', 'https://openalex.org/W3104712768', 'https://openalex.org/W3105021655', 'https://openalex.org/W3105908327', 'https://openalex.org/W3106013672', 'https://openalex.org/W3106442982'], 'related_works': ['https://openalex.org/W3125469532', 'https://openalex.org/W3103369971', 'https://openalex.org/W3100120673', 'https://openalex.org/W3037043392', 'https://openalex.org/W2989852849', 'https://openalex.org/W2974472159', 'https://openalex.org/W2268355911', 'https://openalex.org/W2144302575', 'https://openalex.org/W2091180074', 'https://openalex.org/W1988560323'], 'abstract_inverted_index': {'We': [0], 'construct': [1], 'a': [2, 12, 38], 'model': [3, 8, 68, 80, 103, 154], 'in': [4, 31, 44, 101, 116, 127], 'which': [5, 35, 121], 'the': [6, 32, 41, 45, 51, 58, 63, 66, 71, 82, 89, 92, 97, 102, 108, 112, 117, 128, 153], 'standard': [7, 67], 'is': [9, 29, 81], 'extended': [10], 'by': [11, 110], 'hidden': [13, 33, 72], 'sector': [14, 34, 69], 'with': [15, 142], 'two': [16, 52], 'gauge': [17, 54, 60], 'U(1)': [18, 27, 55], 'bosons.': [19], 'A': [20, 74], 'Dirac': [21], 'fermion': [22], 'ψ': [23], 'charged': [24], 'under': [25], 'both': [26], 'fields': [28, 56], 'introduced': [30], 'can': [36, 104], 'be': [37, 105, 125], 'subcomponent': [39], 'of': [40, 78], 'dark': [42, 85, 94, 99], 'matter': [43], 'Universe.': [46], 'Stueckelberg': [47], 'mass': [48], 'terms': [49], 'between': [50, 65], 'new': [53], 'and': [57, 70, 131, 158], 'hypercharge': [59], 'boson': [61], 'mediate': [62], 'interactions': [64], 'sector.': [73], 'remarkable': [75], 'collider': [76, 156], 'signature': [77], 'this': [79], 'enhanced': [83], 'long-lived': [84, 98], 'photon': [86, 95], 'events': [87], 'at': [88], 'LHC': [90, 129], 'than': [91], 'conventional': [93], 'models;': [96], 'photons': [100], 'discriminated': [106], 'from': [107], 'background': [109], 'measuring': [111], 'time': [113], 'delay': [114], 'signal': [115], 'precision': [118], 'timing': [119], 'detectors': [120], 'are': [122, 146, 161], 'proposed': [123], 'to': [124], 'installed': [126], 'upgrades': [130], 'have': [132], 'an': [133], '$$': [134, 136], '\\mathcal{O}': [135], '(10)': [137], 'pico-second': [138], 'detection': [139], 'efficiency.': [140], 'Searches': [141], 'current': [143], 'LHCb': [144], 'data': [145], 'also': [147, 162], 'investigated.': [148], 'Various': [149], 'experimental': [150], 'constraints': [151, 157, 160], 'on': [152], 'including': [155], 'cosmological': [159], 'discussed.': [163]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2989852849', 'counts_by_year': [{'year': 2022, 'cited_by_count': 1}, {'year': 2021, 'cited_by_count': 4}, {'year': 2020, 'cited_by_count': 2}], 'updated_date': '2025-01-08T22:22:43.752458', 'created_date': '2019-12-05'}