A. Hayrapetyanet al.(CMS Collaboration)
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{"title":"在 13 TeV 质子-质子对撞中寻找软非成簇能量模式","authors":"A. Hayrapetyanet al.(CMS Collaboration)","doi":"10.1103/physrevlett.133.191902","DOIUrl":null,"url":null,"abstract":"The first search for soft unclustered energy patterns (SUEPs) is performed using an integrated luminosity of <mjx-container ctxtmenu_counter=\"12\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" overflow=\"linebreak\" role=\"tree\" sre-explorer- style=\"font-size: 100.7%;\" tabindex=\"0\"><mjx-math data-semantic-structure=\"(11 0 1 2 (7 3 (6 4 5)))\"><mjx-mrow data-semantic-children=\"0,1,2,7\" data-semantic-collapsed=\"(11 (c 8 9 10) 0 1 2 7)\" data-semantic- data-semantic-owns=\"0 1 2 7\" data-semantic-role=\"text\" data-semantic-speech=\"138 f b Superscript negative 1\" data-semantic-type=\"punctuated\"><mjx-mn data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"11\" data-semantic-role=\"integer\" data-semantic-type=\"number\"><mjx-c noic=\"true\" style=\"padding-top: 0.647em;\">1</mjx-c><mjx-c noic=\"true\" style=\"padding-top: 0.647em;\">3</mjx-c><mjx-c style=\"padding-top: 0.647em;\">8</mjx-c></mjx-mn><mjx-mtext data-semantic-annotation=\"clearspeak:unit\" data-semantic- data-semantic-parent=\"11\" data-semantic-role=\"space\" data-semantic-type=\"text\" style='font-family: MJX-STX-ZERO, \"Helvetica Neue\", Helvetica, Roboto, Arial, sans-serif;'><mjx-utext style=\"font-size: 90.6%; 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padding: 0.828em 0px 0.221em; width: 3px;\" variant=\"-explicitFont\"> </mjx-utext></mjx-mtext><mjx-mtext data-semantic-annotation=\"clearspeak:unit\" data-semantic- data-semantic-parent=\"11\" data-semantic-role=\"space\" data-semantic-type=\"text\" style='font-family: MJX-STX-ZERO, \"Helvetica Neue\", Helvetica, Roboto, Arial, sans-serif;'><mjx-utext style=\"font-size: 90.6%; padding: 0.828em 0px 0.221em; width: 3px;\" variant=\"-explicitFont\"> </mjx-utext></mjx-mtext><mjx-mi data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"11\" data-semantic-role=\"unknown\" data-semantic-type=\"identifier\" space=\"2\"><mjx-c noic=\"true\" style=\"padding-top: 0.657em;\">T</mjx-c><mjx-c noic=\"true\" style=\"padding-top: 0.657em;\">e</mjx-c><mjx-c style=\"padding-top: 0.657em;\">V</mjx-c></mjx-mi></mjx-mrow></mjx-math></mjx-container>, collected in 2016–2018 by the CMS detector at the LHC. Such SUEPs are predicted by hidden valley models with a new, confining force with a large ’t Hooft coupling. In events with boosted topologies, selected by high-threshold hadronic triggers, the multiplicity and sphericity of clustered tracks are used to reject the background from standard model quantum chromodynamics. With no observed excess of events over the standard model expectation, limits are set on the cross section for production via gluon fusion of a scalar mediator with SUEP-like decays.","PeriodicalId":20069,"journal":{"name":"Physical review letters","volume":null,"pages":null},"PeriodicalIF":8.1000,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Search for Soft Unclustered Energy Patterns in Proton-Proton Collisions at 13 TeV\",\"authors\":\"A. Hayrapetyanet al.(CMS Collaboration)\",\"doi\":\"10.1103/physrevlett.133.191902\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The first search for soft unclustered energy patterns (SUEPs) is performed using an integrated luminosity of <mjx-container ctxtmenu_counter=\\\"12\\\" ctxtmenu_oldtabindex=\\\"1\\\" jax=\\\"CHTML\\\" overflow=\\\"linebreak\\\" role=\\\"tree\\\" sre-explorer- style=\\\"font-size: 100.7%;\\\" tabindex=\\\"0\\\"><mjx-math data-semantic-structure=\\\"(11 0 1 2 (7 3 (6 4 5)))\\\"><mjx-mrow data-semantic-children=\\\"0,1,2,7\\\" data-semantic-collapsed=\\\"(11 (c 8 9 10) 0 1 2 7)\\\" data-semantic- data-semantic-owns=\\\"0 1 2 7\\\" data-semantic-role=\\\"text\\\" data-semantic-speech=\\\"138 f b Superscript negative 1\\\" data-semantic-type=\\\"punctuated\\\"><mjx-mn data-semantic-annotation=\\\"clearspeak:simple\\\" data-semantic-font=\\\"normal\\\" data-semantic- data-semantic-parent=\\\"11\\\" data-semantic-role=\\\"integer\\\" data-semantic-type=\\\"number\\\"><mjx-c noic=\\\"true\\\" style=\\\"padding-top: 0.647em;\\\">1</mjx-c><mjx-c noic=\\\"true\\\" style=\\\"padding-top: 0.647em;\\\">3</mjx-c><mjx-c style=\\\"padding-top: 0.647em;\\\">8</mjx-c></mjx-mn><mjx-mtext data-semantic-annotation=\\\"clearspeak:unit\\\" data-semantic- data-semantic-parent=\\\"11\\\" data-semantic-role=\\\"space\\\" data-semantic-type=\\\"text\\\" style='font-family: MJX-STX-ZERO, \\\"Helvetica Neue\\\", Helvetica, Roboto, Arial, sans-serif;'><mjx-utext style=\\\"font-size: 90.6%; padding: 0.828em 0px 0.221em; width: 3px;\\\" variant=\\\"-explicitFont\\\"> </mjx-utext></mjx-mtext><mjx-mtext data-semantic-annotation=\\\"clearspeak:unit\\\" data-semantic- data-semantic-parent=\\\"11\\\" data-semantic-role=\\\"space\\\" data-semantic-type=\\\"text\\\" style='font-family: MJX-STX-ZERO, \\\"Helvetica Neue\\\", Helvetica, Roboto, Arial, sans-serif;'><mjx-utext style=\\\"font-size: 90.6%; padding: 0.828em 0px 0.221em; width: 3px;\\\" variant=\\\"-explicitFont\\\"> </mjx-utext></mjx-mtext><mjx-msup data-semantic-children=\\\"3,6\\\" data-semantic- data-semantic-owns=\\\"3 6\\\" data-semantic-parent=\\\"11\\\" data-semantic-role=\\\"unknown\\\" data-semantic-type=\\\"superscript\\\"><mjx-mrow><mjx-mi data-semantic-font=\\\"normal\\\" data-semantic- data-semantic-parent=\\\"7\\\" data-semantic-role=\\\"unknown\\\" data-semantic-type=\\\"identifier\\\"><mjx-c noic=\\\"true\\\" style=\\\"padding-top: 0.713em;\\\">f</mjx-c><mjx-c style=\\\"padding-top: 0.713em;\\\">b</mjx-c></mjx-mi></mjx-mrow><mjx-script style=\\\"vertical-align: 0.44em;\\\"><mjx-mrow data-semantic-annotation=\\\"clearspeak:simple\\\" data-semantic-children=\\\"5\\\" data-semantic-content=\\\"4\\\" data-semantic- data-semantic-owns=\\\"4 5\\\" data-semantic-parent=\\\"7\\\" data-semantic-role=\\\"negative\\\" data-semantic-type=\\\"prefixop\\\" size=\\\"s\\\"><mjx-mo data-semantic- data-semantic-operator=\\\"prefixop,−\\\" data-semantic-parent=\\\"6\\\" data-semantic-role=\\\"subtraction\\\" data-semantic-type=\\\"operator\\\"><mjx-c>−</mjx-c></mjx-mo><mjx-mn data-semantic-annotation=\\\"clearspeak:simple\\\" data-semantic-font=\\\"normal\\\" data-semantic- data-semantic-parent=\\\"6\\\" data-semantic-role=\\\"integer\\\" data-semantic-type=\\\"number\\\"><mjx-c>1</mjx-c></mjx-mn></mjx-mrow></mjx-script></mjx-msup></mjx-mrow></mjx-math></mjx-container> of proton-proton collision data at <mjx-container ctxtmenu_counter=\\\"13\\\" ctxtmenu_oldtabindex=\\\"1\\\" jax=\\\"CHTML\\\" overflow=\\\"linebreak\\\" role=\\\"tree\\\" sre-explorer- style=\\\"font-size: 100.7%;\\\" tabindex=\\\"0\\\"><mjx-math data-semantic-structure=\\\"(11 (7 (1 0) 2 3) 4 5 6)\\\"><mjx-mrow data-semantic-children=\\\"7,4,5,6\\\" data-semantic-collapsed=\\\"(11 (c 8 9 10) 7 4 5 6)\\\" data-semantic- data-semantic-owns=\\\"7 4 5 6\\\" data-semantic-role=\\\"text\\\" data-semantic-speech=\\\"StartRoot s EndRoot equals 13 upper T e upper V\\\" data-semantic-type=\\\"punctuated\\\"><mjx-mrow data-semantic-added=\\\"true\\\" data-semantic-children=\\\"1,3\\\" data-semantic-content=\\\"2\\\" data-semantic- data-semantic-owns=\\\"1 2 3\\\" data-semantic-parent=\\\"11\\\" data-semantic-role=\\\"equality\\\" data-semantic-type=\\\"relseq\\\"><mjx-msqrt data-semantic-children=\\\"0\\\" data-semantic- data-semantic-owns=\\\"0\\\" data-semantic-parent=\\\"7\\\" data-semantic-role=\\\"unknown\\\" data-semantic-type=\\\"sqrt\\\"><mjx-sqrt><mjx-surd><mjx-mo><mjx-c>√</mjx-c></mjx-mo></mjx-surd><mjx-box style=\\\"padding-top: 0.357em; border-top-width: 0.085em;\\\"><mjx-mrow><mjx-mi data-semantic-annotation=\\\"clearspeak:simple\\\" data-semantic-font=\\\"italic\\\" data-semantic- data-semantic-parent=\\\"1\\\" data-semantic-role=\\\"latinletter\\\" data-semantic-type=\\\"identifier\\\"><mjx-c>𝑠</mjx-c></mjx-mi></mjx-mrow></mjx-box></mjx-sqrt></mjx-msqrt><mjx-mo data-semantic- data-semantic-operator=\\\"relseq,=\\\" data-semantic-parent=\\\"7\\\" data-semantic-role=\\\"equality\\\" data-semantic-type=\\\"relation\\\" space=\\\"4\\\"><mjx-c>=</mjx-c></mjx-mo><mjx-mn data-semantic-annotation=\\\"clearspeak:simple\\\" data-semantic-font=\\\"normal\\\" data-semantic- data-semantic-parent=\\\"7\\\" data-semantic-role=\\\"integer\\\" data-semantic-type=\\\"number\\\" space=\\\"4\\\"><mjx-c noic=\\\"true\\\" style=\\\"padding-top: 0.644em;\\\">1</mjx-c><mjx-c style=\\\"padding-top: 0.644em;\\\">3</mjx-c></mjx-mn></mjx-mrow><mjx-mtext data-semantic-annotation=\\\"clearspeak:unit\\\" data-semantic- data-semantic-parent=\\\"11\\\" data-semantic-role=\\\"space\\\" data-semantic-type=\\\"text\\\" style='font-family: MJX-STX-ZERO, \\\"Helvetica Neue\\\", Helvetica, Roboto, Arial, sans-serif;'><mjx-utext style=\\\"font-size: 90.6%; padding: 0.828em 0px 0.221em; width: 3px;\\\" variant=\\\"-explicitFont\\\"> </mjx-utext></mjx-mtext><mjx-mtext data-semantic-annotation=\\\"clearspeak:unit\\\" data-semantic- data-semantic-parent=\\\"11\\\" data-semantic-role=\\\"space\\\" data-semantic-type=\\\"text\\\" style='font-family: MJX-STX-ZERO, \\\"Helvetica Neue\\\", Helvetica, Roboto, Arial, sans-serif;'><mjx-utext style=\\\"font-size: 90.6%; padding: 0.828em 0px 0.221em; width: 3px;\\\" variant=\\\"-explicitFont\\\"> </mjx-utext></mjx-mtext><mjx-mi data-semantic-font=\\\"normal\\\" data-semantic- data-semantic-parent=\\\"11\\\" data-semantic-role=\\\"unknown\\\" data-semantic-type=\\\"identifier\\\" space=\\\"2\\\"><mjx-c noic=\\\"true\\\" style=\\\"padding-top: 0.657em;\\\">T</mjx-c><mjx-c noic=\\\"true\\\" style=\\\"padding-top: 0.657em;\\\">e</mjx-c><mjx-c style=\\\"padding-top: 0.657em;\\\">V</mjx-c></mjx-mi></mjx-mrow></mjx-math></mjx-container>, collected in 2016–2018 by the CMS detector at the LHC. Such SUEPs are predicted by hidden valley models with a new, confining force with a large ’t Hooft coupling. In events with boosted topologies, selected by high-threshold hadronic triggers, the multiplicity and sphericity of clustered tracks are used to reject the background from standard model quantum chromodynamics. 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