Supersymmetry with long-lived staus at the LHC
A bstract We consider SUSY extensions of the standard model where the gravitino is the dark-matter particle and the stau is long lived. If there is a significant mass gap with squarks and gluinos, the staus produced at hadron colliders tend to be fast ( β > 0.8), and the searches based on their...
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| Veröffentlicht in: | The journal of high energy physics 2012-09, Vol.2012 (9), Article 27 |
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| container_title | The journal of high energy physics |
| container_volume | 2012 |
| creator | Barceló, R. Illana, J. I. Masip, M. Prado, A. Sánchez-Puertas, P. |
| description | A
bstract
We consider SUSY extensions of the standard model where the gravitino is the dark-matter particle and the stau is long lived. If there is a significant mass gap with squarks and gluinos, the staus produced at hadron colliders tend to be fast (
β
> 0.8), and the searches based on their delay in the time of flight or their anomalous ionization become less effective. Such staus would be identified as regular muons with the same linear momentum and a slightly reduced energy. Compared to the usual SUSY models where a neutralino is the LSP, this scenario implies
(i)
more leptons (the two staus at the end of the decay chains),
(ii)
a strong
e
-
μ
asymmetry, and
(iii)
less missing
E
T
(just from neutrinos, as the lightest neutralino decays into stau). We study the bounds on
this
SUSY from current LHC analyses (same-sign dileptons and multilepton events) and discuss the best strategy for its observation. |
| doi_str_mv | 10.1007/JHEP09(2012)027 |
| format | Article |
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bstract
We consider SUSY extensions of the standard model where the gravitino is the dark-matter particle and the stau is long lived. If there is a significant mass gap with squarks and gluinos, the staus produced at hadron colliders tend to be fast (
β
> 0.8), and the searches based on their delay in the time of flight or their anomalous ionization become less effective. Such staus would be identified as regular muons with the same linear momentum and a slightly reduced energy. Compared to the usual SUSY models where a neutralino is the LSP, this scenario implies
(i)
more leptons (the two staus at the end of the decay chains),
(ii)
a strong
e
-
μ
asymmetry, and
(iii)
less missing
E
T
(just from neutrinos, as the lightest neutralino decays into stau). We study the bounds on
this
SUSY from current LHC analyses (same-sign dileptons and multilepton events) and discuss the best strategy for its observation.</description><identifier>ISSN: 1029-8479</identifier><identifier>EISSN: 1029-8479</identifier><identifier>DOI: 10.1007/JHEP09(2012)027</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject>Classical and Quantum Gravitation ; Elementary Particles ; High energy physics ; Large Hadron Collider ; Leptons ; Muons ; Neutrinos ; Physics ; Physics and Astronomy ; Quantum Field Theories ; Quantum Field Theory ; Quantum Physics ; Relativity Theory ; String Theory ; Supersymmetry</subject><ispartof>The journal of high energy physics, 2012-09, Vol.2012 (9), Article 27</ispartof><rights>SISSA, Trieste, Italy 2012</rights><rights>SISSA, Trieste, Italy 2012.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c264t-f1f5da3c5be524fd36da59186bd23307daf56b30cb068a80069acfc0b919c8f63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/JHEP09(2012)027$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/JHEP09(2012)027$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41101,41469,42170,42538,51300,51557</link.rule.ids><linktorsrc>$$Uhttps://doi.org/10.1007/JHEP09(2012)027$$EView_record_in_Springer_Nature$$FView_record_in_$$GSpringer_Nature</linktorsrc></links><search><creatorcontrib>Barceló, R.</creatorcontrib><creatorcontrib>Illana, J. I.</creatorcontrib><creatorcontrib>Masip, M.</creatorcontrib><creatorcontrib>Prado, A.</creatorcontrib><creatorcontrib>Sánchez-Puertas, P.</creatorcontrib><title>Supersymmetry with long-lived staus at the LHC</title><title>The journal of high energy physics</title><addtitle>J. High Energ. Phys</addtitle><description>A
bstract
We consider SUSY extensions of the standard model where the gravitino is the dark-matter particle and the stau is long lived. If there is a significant mass gap with squarks and gluinos, the staus produced at hadron colliders tend to be fast (
β
> 0.8), and the searches based on their delay in the time of flight or their anomalous ionization become less effective. Such staus would be identified as regular muons with the same linear momentum and a slightly reduced energy. Compared to the usual SUSY models where a neutralino is the LSP, this scenario implies
(i)
more leptons (the two staus at the end of the decay chains),
(ii)
a strong
e
-
μ
asymmetry, and
(iii)
less missing
E
T
(just from neutrinos, as the lightest neutralino decays into stau). We study the bounds on
this
SUSY from current LHC analyses (same-sign dileptons and multilepton events) and discuss the best strategy for its observation.</description><subject>Classical and Quantum Gravitation</subject><subject>Elementary Particles</subject><subject>High energy physics</subject><subject>Large Hadron Collider</subject><subject>Leptons</subject><subject>Muons</subject><subject>Neutrinos</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Quantum Field Theories</subject><subject>Quantum Field Theory</subject><subject>Quantum Physics</subject><subject>Relativity Theory</subject><subject>String Theory</subject><subject>Supersymmetry</subject><issn>1029-8479</issn><issn>1029-8479</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp1kEtLxDAUhYMoOI6u3Rbc6KIzN0mbNkspM1YpKKjrkKbJPJg-TFKl_94OFXTj6p7F-c6FD6FrDAsMkCyf8tUL8FsCmNwBSU7QDAPhYRol_PRPPkcXzu0BcIw5zNDite-0dUNda2-H4Gvnt8GhbTbhYfepq8B52btA-sBvdVDk2SU6M_Lg9NXPnaP39eoty8Pi-eExuy9CRVjkQ4NNXEmq4lLHJDIVZZWMOU5ZWRFKIamkiVlJQZXAUpkCMC6VUVByzFVqGJ2jm2m3s-1Hr50X-7a3zfhSEMpTSmmEo7G1nFrKts5ZbURnd7W0g8AgjlLEJEUcpYhRykjARLix2Wy0_d39D_kGHDBikA</recordid><startdate>20120901</startdate><enddate>20120901</enddate><creator>Barceló, R.</creator><creator>Illana, J. I.</creator><creator>Masip, M.</creator><creator>Prado, A.</creator><creator>Sánchez-Puertas, P.</creator><general>Springer-Verlag</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope></search><sort><creationdate>20120901</creationdate><title>Supersymmetry with long-lived staus at the LHC</title><author>Barceló, R. ; Illana, J. I. ; Masip, M. ; Prado, A. ; Sánchez-Puertas, P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c264t-f1f5da3c5be524fd36da59186bd23307daf56b30cb068a80069acfc0b919c8f63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Classical and Quantum Gravitation</topic><topic>Elementary Particles</topic><topic>High energy physics</topic><topic>Large Hadron Collider</topic><topic>Leptons</topic><topic>Muons</topic><topic>Neutrinos</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Quantum Field Theories</topic><topic>Quantum Field Theory</topic><topic>Quantum Physics</topic><topic>Relativity Theory</topic><topic>String Theory</topic><topic>Supersymmetry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Barceló, R.</creatorcontrib><creatorcontrib>Illana, J. I.</creatorcontrib><creatorcontrib>Masip, M.</creatorcontrib><creatorcontrib>Prado, A.</creatorcontrib><creatorcontrib>Sánchez-Puertas, P.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><jtitle>The journal of high energy physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Barceló, R.</au><au>Illana, J. I.</au><au>Masip, M.</au><au>Prado, A.</au><au>Sánchez-Puertas, P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Supersymmetry with long-lived staus at the LHC</atitle><jtitle>The journal of high energy physics</jtitle><stitle>J. High Energ. Phys</stitle><date>2012-09-01</date><risdate>2012</risdate><volume>2012</volume><issue>9</issue><artnum>27</artnum><issn>1029-8479</issn><eissn>1029-8479</eissn><abstract>A
bstract
We consider SUSY extensions of the standard model where the gravitino is the dark-matter particle and the stau is long lived. If there is a significant mass gap with squarks and gluinos, the staus produced at hadron colliders tend to be fast (
β
> 0.8), and the searches based on their delay in the time of flight or their anomalous ionization become less effective. Such staus would be identified as regular muons with the same linear momentum and a slightly reduced energy. Compared to the usual SUSY models where a neutralino is the LSP, this scenario implies
(i)
more leptons (the two staus at the end of the decay chains),
(ii)
a strong
e
-
μ
asymmetry, and
(iii)
less missing
E
T
(just from neutrinos, as the lightest neutralino decays into stau). We study the bounds on
this
SUSY from current LHC analyses (same-sign dileptons and multilepton events) and discuss the best strategy for its observation.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><doi>10.1007/JHEP09(2012)027</doi><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| source | Springer Nature OA Free Journals |
| subjects | Classical and Quantum Gravitation Elementary Particles High energy physics Large Hadron Collider Leptons Muons Neutrinos Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Relativity Theory String Theory Supersymmetry |
| title | Supersymmetry with long-lived staus at the LHC |
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