{"title":"在 14 TeV 大型强子对撞机上单次产生带电荷 5/3 的矢量类夸克","authors":"","doi":"10.1016/j.nuclphysb.2024.116667","DOIUrl":null,"url":null,"abstract":"<div><p>In a framework of the Standard Model (SM) simply extended by an SU(2) doublet <span><math><mo>(</mo><mi>X</mi><mo>,</mo><mi>T</mi><mo>)</mo></math></span> including a vectorlike <em>X</em>-quark (VLQ-<em>X</em>), with electric charge <span><math><mo>|</mo><msub><mrow><mi>Q</mi></mrow><mrow><mi>X</mi></mrow></msub><mo>|</mo><mo>=</mo><mn>5</mn><mo>/</mo><mn>3</mn></math></span>, we investigate the single production of the VLQ-<em>X</em> induced by the couplings between the VLQ-<em>X</em> with the first and the third generation quarks at the Large Hadron Collider (LHC) operating at <span><math><msqrt><mrow><mi>s</mi></mrow></msqrt><mo>=</mo><mn>14</mn></math></span> TeV. The signal is searched in events including same-sign dileptons (electrons or muons), one <em>b</em>-tagged jet and missing energy, where the <em>X</em> quark is assumed to decay into a top quark and a W boson, both decaying leptonically. After a rapid simulation of signal and background events, the 95% CL exclusion limits and the 5<em>σ</em> discovery reach are respectively obtained at the LHC with an integrated luminosity of 300 and 3000 fb<sup>−1</sup>, respectively.</p></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0550321324002335/pdfft?md5=9e2d0bb1363543f72f3c6413ffbe2408&pid=1-s2.0-S0550321324002335-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Single production of vectorlike quarks with charge 5/3 at the 14 TeV LHC\",\"authors\":\"\",\"doi\":\"10.1016/j.nuclphysb.2024.116667\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In a framework of the Standard Model (SM) simply extended by an SU(2) doublet <span><math><mo>(</mo><mi>X</mi><mo>,</mo><mi>T</mi><mo>)</mo></math></span> including a vectorlike <em>X</em>-quark (VLQ-<em>X</em>), with electric charge <span><math><mo>|</mo><msub><mrow><mi>Q</mi></mrow><mrow><mi>X</mi></mrow></msub><mo>|</mo><mo>=</mo><mn>5</mn><mo>/</mo><mn>3</mn></math></span>, we investigate the single production of the VLQ-<em>X</em> induced by the couplings between the VLQ-<em>X</em> with the first and the third generation quarks at the Large Hadron Collider (LHC) operating at <span><math><msqrt><mrow><mi>s</mi></mrow></msqrt><mo>=</mo><mn>14</mn></math></span> TeV. The signal is searched in events including same-sign dileptons (electrons or muons), one <em>b</em>-tagged jet and missing energy, where the <em>X</em> quark is assumed to decay into a top quark and a W boson, both decaying leptonically. After a rapid simulation of signal and background events, the 95% CL exclusion limits and the 5<em>σ</em> discovery reach are respectively obtained at the LHC with an integrated luminosity of 300 and 3000 fb<sup>−1</sup>, respectively.</p></div>\",\"PeriodicalId\":54712,\"journal\":{\"name\":\"Nuclear Physics B\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2024-08-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S0550321324002335/pdfft?md5=9e2d0bb1363543f72f3c6413ffbe2408&pid=1-s2.0-S0550321324002335-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nuclear Physics B\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0550321324002335\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PHYSICS, PARTICLES & FIELDS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Physics B","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0550321324002335","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, PARTICLES & FIELDS","Score":null,"Total":0}
Single production of vectorlike quarks with charge 5/3 at the 14 TeV LHC
In a framework of the Standard Model (SM) simply extended by an SU(2) doublet including a vectorlike X-quark (VLQ-X), with electric charge , we investigate the single production of the VLQ-X induced by the couplings between the VLQ-X with the first and the third generation quarks at the Large Hadron Collider (LHC) operating at TeV. The signal is searched in events including same-sign dileptons (electrons or muons), one b-tagged jet and missing energy, where the X quark is assumed to decay into a top quark and a W boson, both decaying leptonically. After a rapid simulation of signal and background events, the 95% CL exclusion limits and the 5σ discovery reach are respectively obtained at the LHC with an integrated luminosity of 300 and 3000 fb−1, respectively.
期刊介绍:
Nuclear Physics B focuses on the domain of high energy physics, quantum field theory, statistical systems, and mathematical physics, and includes four main sections: high energy physics - phenomenology, high energy physics - theory, high energy physics - experiment, and quantum field theory, statistical systems, and mathematical physics. The emphasis is on original research papers (Frontiers Articles or Full Length Articles), but Review Articles are also welcome.