{"title":"强子对撞中 Lambda 超子的横向极化","authors":"Ying Gao , Kai-Bao Chen , Yu-Kun Song , Shu-Yi Wei","doi":"10.1016/j.physletb.2024.139026","DOIUrl":null,"url":null,"abstract":"<div><p>The transverse polarization of Λ hyperon within reconstructed jets in hadronic collisions offers a complementary platform to probe the polarized fragmentation function <span><math><msubsup><mrow><mi>D</mi></mrow><mrow><mn>1</mn><mi>T</mi></mrow><mrow><mo>⊥</mo></mrow></msubsup></math></span>. We illustrate that by performing a global analysis of the transverse polarization of Λ hyperons produced in different kinematic regions and in different hadronic collisions, such as <em>pp</em>, <span><math><mi>p</mi><mover><mrow><mi>p</mi></mrow><mrow><mo>¯</mo></mrow></mover></math></span>, <em>pA</em>, and <em>γA</em> collisions, we can pin down the flavor dependence of <span><math><msubsup><mrow><mi>D</mi></mrow><mrow><mn>1</mn><mi>T</mi></mrow><mrow><mo>⊥</mo></mrow></msubsup></math></span> which has been poorly constrained. Besides the single inclusive jet production, the <span><math><mi>γ</mi><mo>/</mo><msup><mrow><mi>Z</mi></mrow><mrow><mn>0</mn></mrow></msup></math></span>-boson associated jet production supplements with more capability in removing ambiguities in the flavor dependence of <span><math><msubsup><mrow><mi>D</mi></mrow><mrow><mn>1</mn><mi>T</mi></mrow><mrow><mo>⊥</mo></mrow></msubsup></math></span>.</p></div>","PeriodicalId":20162,"journal":{"name":"Physics Letters B","volume":"858 ","pages":"Article 139026"},"PeriodicalIF":4.3000,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0370269324005847/pdfft?md5=0a2c5d5f70548f810e81e68a157db779&pid=1-s2.0-S0370269324005847-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Transverse polarization of Lambda hyperons in hadronic collisions\",\"authors\":\"Ying Gao , Kai-Bao Chen , Yu-Kun Song , Shu-Yi Wei\",\"doi\":\"10.1016/j.physletb.2024.139026\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The transverse polarization of Λ hyperon within reconstructed jets in hadronic collisions offers a complementary platform to probe the polarized fragmentation function <span><math><msubsup><mrow><mi>D</mi></mrow><mrow><mn>1</mn><mi>T</mi></mrow><mrow><mo>⊥</mo></mrow></msubsup></math></span>. We illustrate that by performing a global analysis of the transverse polarization of Λ hyperons produced in different kinematic regions and in different hadronic collisions, such as <em>pp</em>, <span><math><mi>p</mi><mover><mrow><mi>p</mi></mrow><mrow><mo>¯</mo></mrow></mover></math></span>, <em>pA</em>, and <em>γA</em> collisions, we can pin down the flavor dependence of <span><math><msubsup><mrow><mi>D</mi></mrow><mrow><mn>1</mn><mi>T</mi></mrow><mrow><mo>⊥</mo></mrow></msubsup></math></span> which has been poorly constrained. Besides the single inclusive jet production, the <span><math><mi>γ</mi><mo>/</mo><msup><mrow><mi>Z</mi></mrow><mrow><mn>0</mn></mrow></msup></math></span>-boson associated jet production supplements with more capability in removing ambiguities in the flavor dependence of <span><math><msubsup><mrow><mi>D</mi></mrow><mrow><mn>1</mn><mi>T</mi></mrow><mrow><mo>⊥</mo></mrow></msubsup></math></span>.</p></div>\",\"PeriodicalId\":20162,\"journal\":{\"name\":\"Physics Letters B\",\"volume\":\"858 \",\"pages\":\"Article 139026\"},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2024-09-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S0370269324005847/pdfft?md5=0a2c5d5f70548f810e81e68a157db779&pid=1-s2.0-S0370269324005847-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physics Letters B\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0370269324005847\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ASTRONOMY & ASTROPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics Letters B","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0370269324005847","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
Transverse polarization of Lambda hyperons in hadronic collisions
The transverse polarization of Λ hyperon within reconstructed jets in hadronic collisions offers a complementary platform to probe the polarized fragmentation function . We illustrate that by performing a global analysis of the transverse polarization of Λ hyperons produced in different kinematic regions and in different hadronic collisions, such as pp, , pA, and γA collisions, we can pin down the flavor dependence of which has been poorly constrained. Besides the single inclusive jet production, the -boson associated jet production supplements with more capability in removing ambiguities in the flavor dependence of .
期刊介绍:
Physics Letters B ensures the rapid publication of important new results in particle physics, nuclear physics and cosmology. Specialized editors are responsible for contributions in experimental nuclear physics, theoretical nuclear physics, experimental high-energy physics, theoretical high-energy physics, and astrophysics.