Angular correlations in top quark decays in standard model extensions
The CMS Collaboration at the CERN LHC has searched for the t-channel single top quark production using the spin correlation of the t-channel. The signal extraction and cross section measurement rely on the angular distribution of the charged lepton in the top quark decays, the angle between the char...
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| Veröffentlicht in: | Physical review. D, Particles and fields Particles and fields, 2011-03, Vol.83 (5), Article 057502 |
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| container_title | Physical review. D, Particles and fields |
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| creator | Batebi, S. Etesami, S. M. Mohammadi-Najafabadi, M. |
| description | The CMS Collaboration at the CERN LHC has searched for the t-channel single top quark production using the spin correlation of the t-channel. The signal extraction and cross section measurement rely on the angular distribution of the charged lepton in the top quark decays, the angle between the charged lepton momentum and top spin in the top rest frame. The behavior of the angular distribution is a distinct slope for the t-channel single top (signal) while it is flat for the backgrounds. In this Brief Report, we investigate the contributions which this spin correlation may receive from a two-Higgs doublet model, a top-color assisted technicolor (TC2) and the noncommutative extension of the standard model. |
| doi_str_mv | 10.1103/PhysRevD.83.057502 |
| format | Article |
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D, Particles and fields</title><description>The CMS Collaboration at the CERN LHC has searched for the t-channel single top quark production using the spin correlation of the t-channel. The signal extraction and cross section measurement rely on the angular distribution of the charged lepton in the top quark decays, the angle between the charged lepton momentum and top spin in the top rest frame. The behavior of the angular distribution is a distinct slope for the t-channel single top (signal) while it is flat for the backgrounds. In this Brief Report, we investigate the contributions which this spin correlation may receive from a two-Higgs doublet model, a top-color assisted technicolor (TC2) and the noncommutative extension of the standard model.</description><subject>ACCELERATORS</subject><subject>ANGULAR CORRELATION</subject><subject>ANGULAR DISTRIBUTION</subject><subject>ANGULAR MOMENTUM</subject><subject>BOSONS</subject><subject>CERN LHC</subject><subject>COLOR MODEL</subject><subject>COMPOSITE MODELS</subject><subject>CORRELATIONS</subject><subject>CROSS SECTIONS</subject><subject>CYCLIC ACCELERATORS</subject><subject>DECAY</subject><subject>DISTRIBUTION</subject><subject>ELEMENTARY PARTICLES</subject><subject>EXTRACTION</subject><subject>FERMIONS</subject><subject>FIELD THEORIES</subject><subject>GRAND UNIFIED THEORY</subject><subject>HIGGS BOSONS</subject><subject>HIGGS MODEL</subject><subject>LEPTONS</subject><subject>MATHEMATICAL MODELS</subject><subject>PARTICLE DECAY</subject><subject>PARTICLE MODELS</subject><subject>PARTICLE PROPERTIES</subject><subject>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</subject><subject>POSTULATED PARTICLES</subject><subject>QUANTUM FIELD THEORY</subject><subject>QUARK MODEL</subject><subject>QUARKS</subject><subject>SEPARATION PROCESSES</subject><subject>SPIN</subject><subject>STANDARD MODEL</subject><subject>STORAGE RINGS</subject><subject>SYNCHROTRONS</subject><subject>T CHANNEL</subject><subject>T QUARKS</subject><subject>TOP PARTICLES</subject><subject>UNIFIED GAUGE MODELS</subject><issn>1550-7998</issn><issn>0556-2821</issn><issn>1550-2368</issn><issn>1089-4918</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNo1kEFLAzEUhIMoWKt_wFPA89aXvM1uciy1VqGgiJ5DmmTt6nZTk1Tsv7e19TTDMPN4fIRcMxgxBnj7vNymF_99N5I4AlEL4CdkwISAgmMlT4--Vkqek4uUPgCQV3U9INNx_77pTKQ2xOg7k9vQJ9r2NIc1_dqY-Emdt2b7l6Vsemeio6vgfEf9T_Z92g8uyVljuuSvjjokb_fT18lDMX-aPU7G88IiU7lAQNmUjbTCOwMlU26x2L0hBdrSOOZQqAVwZhQwKR0I8KiqUiA2yijkgENyc7gbUm51sm32dmlD33ubNWcC67Kudi1-aNkYUoq-0evYrkzcagZ6j0v_49IS9QEX_gKchF7z</recordid><startdate>20110308</startdate><enddate>20110308</enddate><creator>Batebi, S.</creator><creator>Etesami, S. 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M. ; Mohammadi-Najafabadi, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c319t-3038f4f8c5eda0419dbb267853c4ad1d359b021a90188d050e3964533f9a93203</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>ACCELERATORS</topic><topic>ANGULAR CORRELATION</topic><topic>ANGULAR DISTRIBUTION</topic><topic>ANGULAR MOMENTUM</topic><topic>BOSONS</topic><topic>CERN LHC</topic><topic>COLOR MODEL</topic><topic>COMPOSITE MODELS</topic><topic>CORRELATIONS</topic><topic>CROSS SECTIONS</topic><topic>CYCLIC ACCELERATORS</topic><topic>DECAY</topic><topic>DISTRIBUTION</topic><topic>ELEMENTARY PARTICLES</topic><topic>EXTRACTION</topic><topic>FERMIONS</topic><topic>FIELD THEORIES</topic><topic>GRAND UNIFIED THEORY</topic><topic>HIGGS BOSONS</topic><topic>HIGGS MODEL</topic><topic>LEPTONS</topic><topic>MATHEMATICAL MODELS</topic><topic>PARTICLE DECAY</topic><topic>PARTICLE MODELS</topic><topic>PARTICLE PROPERTIES</topic><topic>PHYSICS OF ELEMENTARY PARTICLES AND FIELDS</topic><topic>POSTULATED PARTICLES</topic><topic>QUANTUM FIELD THEORY</topic><topic>QUARK MODEL</topic><topic>QUARKS</topic><topic>SEPARATION PROCESSES</topic><topic>SPIN</topic><topic>STANDARD MODEL</topic><topic>STORAGE RINGS</topic><topic>SYNCHROTRONS</topic><topic>T CHANNEL</topic><topic>T QUARKS</topic><topic>TOP PARTICLES</topic><topic>UNIFIED GAUGE MODELS</topic><toplevel>online_resources</toplevel><creatorcontrib>Batebi, S.</creatorcontrib><creatorcontrib>Etesami, S. M.</creatorcontrib><creatorcontrib>Mohammadi-Najafabadi, M.</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Physical review. D, Particles and fields</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Batebi, S.</au><au>Etesami, S. M.</au><au>Mohammadi-Najafabadi, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Angular correlations in top quark decays in standard model extensions</atitle><jtitle>Physical review. D, Particles and fields</jtitle><date>2011-03-08</date><risdate>2011</risdate><volume>83</volume><issue>5</issue><artnum>057502</artnum><issn>1550-7998</issn><issn>0556-2821</issn><eissn>1550-2368</eissn><eissn>1089-4918</eissn><abstract>The CMS Collaboration at the CERN LHC has searched for the t-channel single top quark production using the spin correlation of the t-channel. The signal extraction and cross section measurement rely on the angular distribution of the charged lepton in the top quark decays, the angle between the charged lepton momentum and top spin in the top rest frame. The behavior of the angular distribution is a distinct slope for the t-channel single top (signal) while it is flat for the backgrounds. In this Brief Report, we investigate the contributions which this spin correlation may receive from a two-Higgs doublet model, a top-color assisted technicolor (TC2) and the noncommutative extension of the standard model.</abstract><cop>United States</cop><doi>10.1103/PhysRevD.83.057502</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1550-7998 |
| ispartof | Physical review. D, Particles and fields, 2011-03, Vol.83 (5), Article 057502 |
| issn | 1550-7998 0556-2821 1550-2368 1089-4918 |
| language | eng |
| recordid | cdi_osti_scitechconnect_21537476 |
| source | American Physical Society Journals |
| subjects | ACCELERATORS ANGULAR CORRELATION ANGULAR DISTRIBUTION ANGULAR MOMENTUM BOSONS CERN LHC COLOR MODEL COMPOSITE MODELS CORRELATIONS CROSS SECTIONS CYCLIC ACCELERATORS DECAY DISTRIBUTION ELEMENTARY PARTICLES EXTRACTION FERMIONS FIELD THEORIES GRAND UNIFIED THEORY HIGGS BOSONS HIGGS MODEL LEPTONS MATHEMATICAL MODELS PARTICLE DECAY PARTICLE MODELS PARTICLE PROPERTIES PHYSICS OF ELEMENTARY PARTICLES AND FIELDS POSTULATED PARTICLES QUANTUM FIELD THEORY QUARK MODEL QUARKS SEPARATION PROCESSES SPIN STANDARD MODEL STORAGE RINGS SYNCHROTRONS T CHANNEL T QUARKS TOP PARTICLES UNIFIED GAUGE MODELS |
| title | Angular correlations in top quark decays in standard model extensions |
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