Search for long-lived heavy neutral leptons and Higgs portal scalars decaying in the MicroBooNE detector
We present a search for long-lived Higgs portal scalars (HPS) and heavy neutral leptons (HNL) decaying in the MicroBooNE liquid-argon time projection chamber. The measurement is performed using data collected synchronously with the NuMI neutrino beam from Fermilab's Main Injector with a total e...
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| creator | collaboration, MicroBooNE Abratenko, P Arellano, L Barnes, C Barr, G Bathe-Peters, L Berkman, S Bhattacharya, M Bolton, T Camilleri, L Caratelli, D I Caro Terrazas Cavanna, F Cerati, G Conrad, J M Convery, M M Del Tutto Dennis, S R Devitt, A Duffy, K Dytman, S Eberly, B Evans, J J Garcia-Gamez, D Gardiner, S G Ge Gollapinni, S Green, P Greenlee, H W Gu Hen, O Hicks, R Hilgenberg, C Horton-Smith, G A Jiang, L Johnson, R A Jwa, Y J Karagiorgi, G Ketchum, W Kirby, M Kobilarcik, T Kreslo, I Leibovitch, M B Lepetic, I J -Y Li K Li Luo, X Mariani, C Martinez Caicedo, D A Mason, K Mastbaum, A Meddage, V Miller, K Mills, J Mohayai, T Mogan, A L Mora Lepin Naples, D Nayak, N Nowak, J Nunes, M Oza, N Palamara, O Paolone, V Parkinson, H Piasetzky, E Prince, S Raaf, J L Rochester, L J Rodriguez Rondon Rosenberg, M Ross-Lonergan, M Rudolph von Rohr, C Schmitz, D W Schukraft, A Seligman, W Shaevitz, M H Sharankova, R Shi, J Soderberg, M Spitz, J Stancari, M Strauss, T Sword-Fehlberg, S Szelc, A M Tang, W Terao, K Torbunov, D Totani, D Y -T Tsai Wei, H Williams, Z Wongjirad, T Wospakrik, M Wright, N W Wu Yandel, E Yates, L E Zeller, G P Zennamo, J |
| description | We present a search for long-lived Higgs portal scalars (HPS) and heavy neutral leptons (HNL) decaying in the MicroBooNE liquid-argon time projection chamber. The measurement is performed using data collected synchronously with the NuMI neutrino beam from Fermilab's Main Injector with a total exposure corresponding to \(7.01 \times 10^{20}\) protons on target. We set upper limits at the \(90\%\) confidence level on the mixing parameter \(\lvert U_{\mu 4}\rvert^2\) ranging from \(\lvert U_{\mu 4}\rvert^2 |
| doi_str_mv | 10.48550/arxiv.2207.03840 |
| format | Article |
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The measurement is performed using data collected synchronously with the NuMI neutrino beam from Fermilab's Main Injector with a total exposure corresponding to \(7.01 \times 10^{20}\) protons on target. We set upper limits at the \(90\%\) confidence level on the mixing parameter \(\lvert U_{\mu 4}\rvert^2\) ranging from \(\lvert U_{\mu 4}\rvert^2<12.9\times 10^{-8}\) for Majorana HNLs with a mass of \(m_{\rm HNL}=246\) MeV to \(\lvert U_{\mu 4}\rvert^2<0.92 \times 10^{-8}\) for \(m_{\rm HNL}=385\) MeV, assuming \(\lvert U_{e 4}\rvert^2 = \lvert U_{\tau 4}\rvert^2 = 0\) and HNL decays into \(\mu^\pm\pi^\mp\) pairs. These limits on \(\lvert U_{\mu 4}\rvert^2\) represent an order of magnitude improvement in sensitivity compared to the previous MicroBooNE result. We also constrain the scalar-Higgs mixing angle \(\theta\) by searching for HPS decays into \(\mu^+\mu^-\) final states, excluding a contour in the parameter space with lower bounds of \(\theta^2<31.3 \times 10^{-9}\) for \(m_{\rm HPS}=212\) GeV and \(\theta^2<1.09 \times 10^{-9}\) for \(m_{\rm HPS}=275\) GeV. These are the first constraints on the scalar-Higgs mixing angle \(\theta\) from a dedicated experimental search in this mass range.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.2207.03840</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Argon ; Confidence intervals ; Decay ; Leptons ; Lower bounds ; Neutrino beams ; Neutrinos ; Parameters ; Physics - High Energy Physics - Experiment ; Radiation counters ; Scalars ; Searching</subject><ispartof>arXiv.org, 2022-12</ispartof><rights>2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>http://creativecommons.org/licenses/by/4.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,776,780,881,27902</link.rule.ids><backlink>$$Uhttps://doi.org/10.1103/PhysRevD.106.092006$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.48550/arXiv.2207.03840$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>collaboration, MicroBooNE</creatorcontrib><creatorcontrib>Abratenko, P</creatorcontrib><creatorcontrib>Arellano, L</creatorcontrib><creatorcontrib>Barnes, C</creatorcontrib><creatorcontrib>Barr, 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S</creatorcontrib><creatorcontrib>Green, P</creatorcontrib><creatorcontrib>Greenlee, H</creatorcontrib><creatorcontrib>W Gu</creatorcontrib><creatorcontrib>Hen, O</creatorcontrib><creatorcontrib>Hicks, R</creatorcontrib><creatorcontrib>Hilgenberg, C</creatorcontrib><creatorcontrib>Horton-Smith, G A</creatorcontrib><creatorcontrib>Jiang, L</creatorcontrib><creatorcontrib>Johnson, R A</creatorcontrib><creatorcontrib>Jwa, Y J</creatorcontrib><creatorcontrib>Karagiorgi, G</creatorcontrib><creatorcontrib>Ketchum, W</creatorcontrib><creatorcontrib>Kirby, M</creatorcontrib><creatorcontrib>Kobilarcik, T</creatorcontrib><creatorcontrib>Kreslo, I</creatorcontrib><creatorcontrib>Leibovitch, M B</creatorcontrib><creatorcontrib>Lepetic, I</creatorcontrib><creatorcontrib>J -Y Li</creatorcontrib><creatorcontrib>K Li</creatorcontrib><creatorcontrib>Luo, X</creatorcontrib><creatorcontrib>Mariani, C</creatorcontrib><creatorcontrib>Martinez Caicedo, D A</creatorcontrib><creatorcontrib>Mason, K</creatorcontrib><creatorcontrib>Mastbaum, A</creatorcontrib><creatorcontrib>Meddage, V</creatorcontrib><creatorcontrib>Miller, K</creatorcontrib><creatorcontrib>Mills, J</creatorcontrib><creatorcontrib>Mohayai, T</creatorcontrib><creatorcontrib>Mogan, A</creatorcontrib><creatorcontrib>L Mora Lepin</creatorcontrib><creatorcontrib>Naples, D</creatorcontrib><creatorcontrib>Nayak, N</creatorcontrib><creatorcontrib>Nowak, J</creatorcontrib><creatorcontrib>Nunes, M</creatorcontrib><creatorcontrib>Oza, N</creatorcontrib><creatorcontrib>Palamara, O</creatorcontrib><creatorcontrib>Paolone, V</creatorcontrib><creatorcontrib>Parkinson, H</creatorcontrib><creatorcontrib>Piasetzky, E</creatorcontrib><creatorcontrib>Prince, S</creatorcontrib><creatorcontrib>Raaf, J L</creatorcontrib><creatorcontrib>Rochester, L</creatorcontrib><creatorcontrib>J Rodriguez Rondon</creatorcontrib><creatorcontrib>Rosenberg, M</creatorcontrib><creatorcontrib>Ross-Lonergan, M</creatorcontrib><creatorcontrib>Rudolph von Rohr, C</creatorcontrib><creatorcontrib>Schmitz, D W</creatorcontrib><creatorcontrib>Schukraft, A</creatorcontrib><creatorcontrib>Seligman, W</creatorcontrib><creatorcontrib>Shaevitz, M H</creatorcontrib><creatorcontrib>Sharankova, R</creatorcontrib><creatorcontrib>Shi, J</creatorcontrib><creatorcontrib>Soderberg, M</creatorcontrib><creatorcontrib>Spitz, J</creatorcontrib><creatorcontrib>Stancari, M</creatorcontrib><creatorcontrib>Strauss, T</creatorcontrib><creatorcontrib>Sword-Fehlberg, S</creatorcontrib><creatorcontrib>Szelc, A M</creatorcontrib><creatorcontrib>Tang, W</creatorcontrib><creatorcontrib>Terao, K</creatorcontrib><creatorcontrib>Torbunov, D</creatorcontrib><creatorcontrib>Totani, D</creatorcontrib><creatorcontrib>Y -T Tsai</creatorcontrib><creatorcontrib>Wei, H</creatorcontrib><creatorcontrib>Williams, Z</creatorcontrib><creatorcontrib>Wongjirad, T</creatorcontrib><creatorcontrib>Wospakrik, M</creatorcontrib><creatorcontrib>Wright, N</creatorcontrib><creatorcontrib>W Wu</creatorcontrib><creatorcontrib>Yandel, E</creatorcontrib><creatorcontrib>Yates, L E</creatorcontrib><creatorcontrib>Zeller, G P</creatorcontrib><creatorcontrib>Zennamo, J</creatorcontrib><title>Search for long-lived heavy neutral leptons and Higgs portal scalars decaying in the MicroBooNE detector</title><title>arXiv.org</title><description>We present a search for long-lived Higgs portal scalars (HPS) and heavy neutral leptons (HNL) decaying in the MicroBooNE liquid-argon time projection chamber. The measurement is performed using data collected synchronously with the NuMI neutrino beam from Fermilab's Main Injector with a total exposure corresponding to \(7.01 \times 10^{20}\) protons on target. We set upper limits at the \(90\%\) confidence level on the mixing parameter \(\lvert U_{\mu 4}\rvert^2\) ranging from \(\lvert U_{\mu 4}\rvert^2<12.9\times 10^{-8}\) for Majorana HNLs with a mass of \(m_{\rm HNL}=246\) MeV to \(\lvert U_{\mu 4}\rvert^2<0.92 \times 10^{-8}\) for \(m_{\rm HNL}=385\) MeV, assuming \(\lvert U_{e 4}\rvert^2 = \lvert U_{\tau 4}\rvert^2 = 0\) and HNL decays into \(\mu^\pm\pi^\mp\) pairs. These limits on \(\lvert U_{\mu 4}\rvert^2\) represent an order of magnitude improvement in sensitivity compared to the previous MicroBooNE result. We also constrain the scalar-Higgs mixing angle \(\theta\) by searching for HPS decays into \(\mu^+\mu^-\) final states, excluding a contour in the parameter space with lower bounds of \(\theta^2<31.3 \times 10^{-9}\) for \(m_{\rm HPS}=212\) GeV and \(\theta^2<1.09 \times 10^{-9}\) for \(m_{\rm HPS}=275\) GeV. These are the first constraints on the scalar-Higgs mixing angle \(\theta\) from a dedicated experimental search in this mass range.</description><subject>Argon</subject><subject>Confidence intervals</subject><subject>Decay</subject><subject>Leptons</subject><subject>Lower bounds</subject><subject>Neutrino beams</subject><subject>Neutrinos</subject><subject>Parameters</subject><subject>Physics - High Energy Physics - Experiment</subject><subject>Radiation counters</subject><subject>Scalars</subject><subject>Searching</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><sourceid>GOX</sourceid><recordid>eNotkFFLwzAUhYMgOOZ-gE8GfO5Mk6ZNHnVMJ0x9cO_lLk3bjJrUJBvu3y9uPh2453A550PoLifzQnBOHsH_msOcUlLNCRMFuUITylieiYLSGzQLYUcIoWVFOWcT1H9p8KrHrfN4cLbLBnPQDe41HI7Y6n30MOBBj9HZgME2eGW6LuDR-ZiMoGAAH3CjFRyN7bCxOPYavxvl3bNzH8tkRa2i87fouoUh6Nm_TtHmZblZrLL15-vb4mmdAacyy6GRTaM1E7zNy2or-JbJlvCtBgo5l2Vq3hZNOrSKijShKoGzgitV6VxKyqbo_vL2jKEevfkGf6z_cNRnHCnxcEmM3v3sdYj1zu29TZ1qWopKssRFshOfZGMh</recordid><startdate>20221206</startdate><enddate>20221206</enddate><creator>collaboration, MicroBooNE</creator><creator>Abratenko, P</creator><creator>Arellano, L</creator><creator>Barnes, C</creator><creator>Barr, G</creator><creator>Bathe-Peters, L</creator><creator>Berkman, S</creator><creator>Bhattacharya, M</creator><creator>Bolton, T</creator><creator>Camilleri, L</creator><creator>Caratelli, D</creator><creator>I Caro Terrazas</creator><creator>Cavanna, F</creator><creator>Cerati, G</creator><creator>Conrad, J M</creator><creator>Convery, M</creator><creator>M Del Tutto</creator><creator>Dennis, S R</creator><creator>Devitt, A</creator><creator>Duffy, K</creator><creator>Dytman, S</creator><creator>Eberly, B</creator><creator>Evans, J J</creator><creator>Garcia-Gamez, D</creator><creator>Gardiner, S</creator><creator>G Ge</creator><creator>Gollapinni, S</creator><creator>Green, P</creator><creator>Greenlee, H</creator><creator>W Gu</creator><creator>Hen, O</creator><creator>Hicks, R</creator><creator>Hilgenberg, C</creator><creator>Horton-Smith, G A</creator><creator>Jiang, L</creator><creator>Johnson, R A</creator><creator>Jwa, Y J</creator><creator>Karagiorgi, G</creator><creator>Ketchum, W</creator><creator>Kirby, M</creator><creator>Kobilarcik, T</creator><creator>Kreslo, I</creator><creator>Leibovitch, M 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arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PHGZM</scope><scope>PHGZT</scope><scope>PIMPY</scope><scope>PKEHL</scope><scope>PQEST</scope><scope>PQGLB</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>GOX</scope></search><sort><creationdate>20221206</creationdate><title>Search for long-lived heavy neutral leptons and Higgs portal scalars decaying in the MicroBooNE detector</title><author>collaboration, MicroBooNE ; Abratenko, P ; Arellano, L ; Barnes, C ; Barr, G ; Bathe-Peters, L ; Berkman, S ; Bhattacharya, M ; Bolton, T ; Camilleri, L ; Caratelli, D ; I Caro Terrazas ; Cavanna, F ; Cerati, G ; Conrad, J M ; Convery, M ; M Del Tutto ; Dennis, S R ; Devitt, A ; Duffy, K ; Dytman, S ; Eberly, B ; Evans, J J ; Garcia-Gamez, D ; Gardiner, S ; G Ge ; Gollapinni, S ; Green, P ; Greenlee, H ; W Gu ; Hen, O ; Hicks, R ; Hilgenberg, C ; Horton-Smith, G A ; Jiang, L ; Johnson, R A ; Jwa, Y J ; Karagiorgi, G ; Ketchum, W ; Kirby, M ; Kobilarcik, T ; Kreslo, I ; Leibovitch, M B ; Lepetic, I ; J -Y Li ; K Li ; Luo, X ; Mariani, C ; Martinez Caicedo, D A ; Mason, K ; Mastbaum, A ; Meddage, V ; Miller, K ; Mills, J ; Mohayai, T ; Mogan, A ; L Mora Lepin ; Naples, D ; Nayak, N ; Nowak, J ; Nunes, M ; Oza, N ; Palamara, O ; Paolone, V ; Parkinson, H ; Piasetzky, E ; Prince, S ; Raaf, J L ; Rochester, L ; J Rodriguez Rondon ; Rosenberg, M ; Ross-Lonergan, M ; Rudolph von Rohr, C ; Schmitz, D W ; Schukraft, A ; Seligman, W ; Shaevitz, M H ; Sharankova, R ; Shi, J ; Soderberg, M ; Spitz, J ; Stancari, M ; Strauss, T ; Sword-Fehlberg, S ; Szelc, A M ; Tang, W ; Terao, K ; Torbunov, D ; Totani, D ; Y -T Tsai ; Wei, H ; Williams, Z ; Wongjirad, T ; Wospakrik, M ; Wright, N ; W Wu ; Yandel, E ; Yates, L E ; Zeller, G P ; Zennamo, J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a529-1ad9ddee385f167b85b39f05bea2a1596026f4d05bfc2825576a5345cc7e19923</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Argon</topic><topic>Confidence intervals</topic><topic>Decay</topic><topic>Leptons</topic><topic>Lower bounds</topic><topic>Neutrino beams</topic><topic>Neutrinos</topic><topic>Parameters</topic><topic>Physics - High Energy Physics - Experiment</topic><topic>Radiation counters</topic><topic>Scalars</topic><topic>Searching</topic><toplevel>online_resources</toplevel><creatorcontrib>collaboration, MicroBooNE</creatorcontrib><creatorcontrib>Abratenko, P</creatorcontrib><creatorcontrib>Arellano, L</creatorcontrib><creatorcontrib>Barnes, C</creatorcontrib><creatorcontrib>Barr, G</creatorcontrib><creatorcontrib>Bathe-Peters, L</creatorcontrib><creatorcontrib>Berkman, S</creatorcontrib><creatorcontrib>Bhattacharya, M</creatorcontrib><creatorcontrib>Bolton, T</creatorcontrib><creatorcontrib>Camilleri, L</creatorcontrib><creatorcontrib>Caratelli, D</creatorcontrib><creatorcontrib>I Caro Terrazas</creatorcontrib><creatorcontrib>Cavanna, F</creatorcontrib><creatorcontrib>Cerati, G</creatorcontrib><creatorcontrib>Conrad, J M</creatorcontrib><creatorcontrib>Convery, M</creatorcontrib><creatorcontrib>M Del Tutto</creatorcontrib><creatorcontrib>Dennis, S R</creatorcontrib><creatorcontrib>Devitt, A</creatorcontrib><creatorcontrib>Duffy, K</creatorcontrib><creatorcontrib>Dytman, S</creatorcontrib><creatorcontrib>Eberly, B</creatorcontrib><creatorcontrib>Evans, J J</creatorcontrib><creatorcontrib>Garcia-Gamez, D</creatorcontrib><creatorcontrib>Gardiner, S</creatorcontrib><creatorcontrib>G Ge</creatorcontrib><creatorcontrib>Gollapinni, S</creatorcontrib><creatorcontrib>Green, P</creatorcontrib><creatorcontrib>Greenlee, H</creatorcontrib><creatorcontrib>W Gu</creatorcontrib><creatorcontrib>Hen, O</creatorcontrib><creatorcontrib>Hicks, R</creatorcontrib><creatorcontrib>Hilgenberg, C</creatorcontrib><creatorcontrib>Horton-Smith, G A</creatorcontrib><creatorcontrib>Jiang, L</creatorcontrib><creatorcontrib>Johnson, R A</creatorcontrib><creatorcontrib>Jwa, Y J</creatorcontrib><creatorcontrib>Karagiorgi, G</creatorcontrib><creatorcontrib>Ketchum, W</creatorcontrib><creatorcontrib>Kirby, M</creatorcontrib><creatorcontrib>Kobilarcik, T</creatorcontrib><creatorcontrib>Kreslo, I</creatorcontrib><creatorcontrib>Leibovitch, M B</creatorcontrib><creatorcontrib>Lepetic, I</creatorcontrib><creatorcontrib>J -Y Li</creatorcontrib><creatorcontrib>K Li</creatorcontrib><creatorcontrib>Luo, X</creatorcontrib><creatorcontrib>Mariani, C</creatorcontrib><creatorcontrib>Martinez Caicedo, D A</creatorcontrib><creatorcontrib>Mason, K</creatorcontrib><creatorcontrib>Mastbaum, A</creatorcontrib><creatorcontrib>Meddage, V</creatorcontrib><creatorcontrib>Miller, K</creatorcontrib><creatorcontrib>Mills, J</creatorcontrib><creatorcontrib>Mohayai, T</creatorcontrib><creatorcontrib>Mogan, A</creatorcontrib><creatorcontrib>L Mora Lepin</creatorcontrib><creatorcontrib>Naples, D</creatorcontrib><creatorcontrib>Nayak, N</creatorcontrib><creatorcontrib>Nowak, J</creatorcontrib><creatorcontrib>Nunes, M</creatorcontrib><creatorcontrib>Oza, N</creatorcontrib><creatorcontrib>Palamara, O</creatorcontrib><creatorcontrib>Paolone, V</creatorcontrib><creatorcontrib>Parkinson, H</creatorcontrib><creatorcontrib>Piasetzky, E</creatorcontrib><creatorcontrib>Prince, S</creatorcontrib><creatorcontrib>Raaf, J L</creatorcontrib><creatorcontrib>Rochester, L</creatorcontrib><creatorcontrib>J Rodriguez Rondon</creatorcontrib><creatorcontrib>Rosenberg, M</creatorcontrib><creatorcontrib>Ross-Lonergan, M</creatorcontrib><creatorcontrib>Rudolph von Rohr, C</creatorcontrib><creatorcontrib>Schmitz, D W</creatorcontrib><creatorcontrib>Schukraft, A</creatorcontrib><creatorcontrib>Seligman, W</creatorcontrib><creatorcontrib>Shaevitz, M H</creatorcontrib><creatorcontrib>Sharankova, R</creatorcontrib><creatorcontrib>Shi, J</creatorcontrib><creatorcontrib>Soderberg, M</creatorcontrib><creatorcontrib>Spitz, J</creatorcontrib><creatorcontrib>Stancari, M</creatorcontrib><creatorcontrib>Strauss, T</creatorcontrib><creatorcontrib>Sword-Fehlberg, S</creatorcontrib><creatorcontrib>Szelc, A M</creatorcontrib><creatorcontrib>Tang, W</creatorcontrib><creatorcontrib>Terao, K</creatorcontrib><creatorcontrib>Torbunov, D</creatorcontrib><creatorcontrib>Totani, D</creatorcontrib><creatorcontrib>Y -T Tsai</creatorcontrib><creatorcontrib>Wei, H</creatorcontrib><creatorcontrib>Williams, Z</creatorcontrib><creatorcontrib>Wongjirad, T</creatorcontrib><creatorcontrib>Wospakrik, M</creatorcontrib><creatorcontrib>Wright, N</creatorcontrib><creatorcontrib>W Wu</creatorcontrib><creatorcontrib>Yandel, E</creatorcontrib><creatorcontrib>Yates, L E</creatorcontrib><creatorcontrib>Zeller, G P</creatorcontrib><creatorcontrib>Zennamo, J</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection (ProQuest)</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>ProQuest Central (New)</collection><collection>ProQuest One Academic (New)</collection><collection>Publicly Available Content Database</collection><collection>ProQuest One Academic Middle East (New)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Applied & Life Sciences</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>arXiv.org</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>collaboration, MicroBooNE</au><au>Abratenko, P</au><au>Arellano, L</au><au>Barnes, C</au><au>Barr, G</au><au>Bathe-Peters, L</au><au>Berkman, S</au><au>Bhattacharya, M</au><au>Bolton, T</au><au>Camilleri, L</au><au>Caratelli, D</au><au>I Caro Terrazas</au><au>Cavanna, F</au><au>Cerati, G</au><au>Conrad, J M</au><au>Convery, M</au><au>M Del Tutto</au><au>Dennis, S R</au><au>Devitt, A</au><au>Duffy, K</au><au>Dytman, S</au><au>Eberly, B</au><au>Evans, J J</au><au>Garcia-Gamez, D</au><au>Gardiner, S</au><au>G Ge</au><au>Gollapinni, S</au><au>Green, P</au><au>Greenlee, H</au><au>W Gu</au><au>Hen, O</au><au>Hicks, R</au><au>Hilgenberg, C</au><au>Horton-Smith, G A</au><au>Jiang, L</au><au>Johnson, R A</au><au>Jwa, Y J</au><au>Karagiorgi, G</au><au>Ketchum, W</au><au>Kirby, M</au><au>Kobilarcik, T</au><au>Kreslo, I</au><au>Leibovitch, M B</au><au>Lepetic, I</au><au>J -Y Li</au><au>K Li</au><au>Luo, X</au><au>Mariani, C</au><au>Martinez Caicedo, D A</au><au>Mason, K</au><au>Mastbaum, A</au><au>Meddage, V</au><au>Miller, K</au><au>Mills, J</au><au>Mohayai, T</au><au>Mogan, A</au><au>L Mora Lepin</au><au>Naples, D</au><au>Nayak, N</au><au>Nowak, J</au><au>Nunes, M</au><au>Oza, N</au><au>Palamara, O</au><au>Paolone, V</au><au>Parkinson, H</au><au>Piasetzky, E</au><au>Prince, S</au><au>Raaf, J L</au><au>Rochester, L</au><au>J Rodriguez Rondon</au><au>Rosenberg, M</au><au>Ross-Lonergan, M</au><au>Rudolph von Rohr, C</au><au>Schmitz, D W</au><au>Schukraft, A</au><au>Seligman, W</au><au>Shaevitz, M H</au><au>Sharankova, R</au><au>Shi, J</au><au>Soderberg, M</au><au>Spitz, J</au><au>Stancari, M</au><au>Strauss, T</au><au>Sword-Fehlberg, S</au><au>Szelc, A M</au><au>Tang, W</au><au>Terao, K</au><au>Torbunov, D</au><au>Totani, D</au><au>Y -T Tsai</au><au>Wei, H</au><au>Williams, Z</au><au>Wongjirad, T</au><au>Wospakrik, M</au><au>Wright, N</au><au>W Wu</au><au>Yandel, E</au><au>Yates, L E</au><au>Zeller, G P</au><au>Zennamo, J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Search for long-lived heavy neutral leptons and Higgs portal scalars decaying in the MicroBooNE detector</atitle><jtitle>arXiv.org</jtitle><date>2022-12-06</date><risdate>2022</risdate><eissn>2331-8422</eissn><abstract>We present a search for long-lived Higgs portal scalars (HPS) and heavy neutral leptons (HNL) decaying in the MicroBooNE liquid-argon time projection chamber. The measurement is performed using data collected synchronously with the NuMI neutrino beam from Fermilab's Main Injector with a total exposure corresponding to \(7.01 \times 10^{20}\) protons on target. We set upper limits at the \(90\%\) confidence level on the mixing parameter \(\lvert U_{\mu 4}\rvert^2\) ranging from \(\lvert U_{\mu 4}\rvert^2<12.9\times 10^{-8}\) for Majorana HNLs with a mass of \(m_{\rm HNL}=246\) MeV to \(\lvert U_{\mu 4}\rvert^2<0.92 \times 10^{-8}\) for \(m_{\rm HNL}=385\) MeV, assuming \(\lvert U_{e 4}\rvert^2 = \lvert U_{\tau 4}\rvert^2 = 0\) and HNL decays into \(\mu^\pm\pi^\mp\) pairs. These limits on \(\lvert U_{\mu 4}\rvert^2\) represent an order of magnitude improvement in sensitivity compared to the previous MicroBooNE result. We also constrain the scalar-Higgs mixing angle \(\theta\) by searching for HPS decays into \(\mu^+\mu^-\) final states, excluding a contour in the parameter space with lower bounds of \(\theta^2<31.3 \times 10^{-9}\) for \(m_{\rm HPS}=212\) GeV and \(\theta^2<1.09 \times 10^{-9}\) for \(m_{\rm HPS}=275\) GeV. These are the first constraints on the scalar-Higgs mixing angle \(\theta\) from a dedicated experimental search in this mass range.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.2207.03840</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | EISSN: 2331-8422 |
| ispartof | arXiv.org, 2022-12 |
| issn | 2331-8422 |
| language | eng |
| recordid | cdi_arxiv_primary_2207_03840 |
| source | arXiv.org; Free E- Journals |
| subjects | Argon Confidence intervals Decay Leptons Lower bounds Neutrino beams Neutrinos Parameters Physics - High Energy Physics - Experiment Radiation counters Scalars Searching |
| title | Search for long-lived heavy neutral leptons and Higgs portal scalars decaying in the MicroBooNE detector |
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