{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.152385.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2823922"}},{"@id":"https://doi.org/10.1007/JHEP02(2025)050","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2024","description":"A search for dark matter (DM) particles produced in association with bottom quarks is presented. The analysis uses proton-proton collision data at a center-of-mass energy of $\\sqrt{s}=$13 TeV, corresponding to an integrated luminosity of 138 fb$^{-1}$. The search is performed in the final state with large missing transverse momentum and a pair of jets originating from bottom quarks. No significant excess of data is observed with respect to the standard model expectation. Results are interpreted in the context of a type-II two-Higgs-doublet model with an additional light pseudoscalar (2HDM+a). An upper limit is set on the mass of the lighter pseudoscalar, excluding masses up to 260 GeV at $95\\%$ confidence level. This is the first search at the LHC to probe DM produced in association with two nonresonant bottom quarks in the 2HDM+a model. Sensitivity to the parameter space with the ratio of the vacuum expectation values of the two Higgs doublets, $\\tan\\beta$, greater than 15 is achieved, capitalizing on the enhancement of couplings between pseudoscalars and bottom quarks with high $\\tan\\beta$.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.152385.v1/t1","@type":"Dataset","description":"Normalized (to unity) shape of generator-level $p_{T}^{miss}$ distribution for two illustrative lighter pseudoscalar masses $m_a$ (left).","name":"Figure 2 (left)"},{"@id":"https://doi.org/10.17182/hepdata.152385.v1/t2","@type":"Dataset","description":"Normalized (to unity) shape of generator-level $p_{T}^{miss}$ distribution for five illustrative DM masses $m_{\\chi}$ (right).","name":"Figure 2 (right)"},{"@id":"https://doi.org/10.17182/hepdata.152385.v1/t3","@type":"Dataset","description":"QCD background contribution in the QCD CR (black and pink dots) in the 2b category using 2017 data. The exponential...","name":"Figure 4"},{"@id":"https://doi.org/10.17182/hepdata.152385.v1/t4","@type":"Dataset","description":"Observed and predicted $p_T^{miss}$ ($U$) distributions in the 1b category, in the Signal Region. The bottom plot shows the ratio...","name":"Figure 5 (Signal Region)"},{"@id":"https://doi.org/10.17182/hepdata.152385.v1/t5","@type":"Dataset","description":"Observed and predicted $p_T^{miss}$ ($U$) distributions in the 1b category, in the $Z(\\ell\\ell)$ Control Region. The bottom plot shows the...","name":"Figure 5 ($Z(\\ell\\ell)$ Control Region)"},{"@id":"https://doi.org/10.17182/hepdata.152385.v1/t6","@type":"Dataset","description":"Observed and predicted $p_T^{miss}$ ($U$) distributions in the 1b category, in the $W(\\ell\\nu)$ Control Region. The bottom plot shows the...","name":"Figure 5 ($W(\\ell\\nu)$ Control Region)"},{"@id":"https://doi.org/10.17182/hepdata.152385.v1/t7","@type":"Dataset","description":"Observed and predicted $\\cos\\Theta$* distributions in the 2b category, in the Signal Region. The bottom plot shows the ratio of...","name":"Figure 6 (Signal Region)"},{"@id":"https://doi.org/10.17182/hepdata.152385.v1/t8","@type":"Dataset","description":"Observed and predicted $\\cos\\Theta$* distributions in the 2b category, in the $Z(\\ell\\ell)$ Control Region. The bottom plot shows the ratio...","name":"Figure 6 ($Z(\\ell\\ell)$ Control Region)"},{"@id":"https://doi.org/10.17182/hepdata.152385.v1/t9","@type":"Dataset","description":"Observed and predicted $\\cos\\Theta$* distributions in the 2b category, in the $t\\bar{t}$ Control Region. The bottom plot shows the ratio...","name":"Figure 6 ($t\\bar{t}$ Control Region)"},{"@id":"https://doi.org/10.17182/hepdata.152385.v1/t10","@type":"Dataset","description":"The $95\\%$ CL upper limit on the signal strength modifier of DM produced in association with a pair of bottom...","name":"Figure 7"},{"@id":"https://doi.org/10.17182/hepdata.152385.v1/t11","@type":"Dataset","description":"$95\\%$ CL upper limit on the signal strength in the $m_a-\\tan\\beta$ plane. The shaded area above the curve is excluded.","name":"Figure 8 (Upper left)"},{"@id":"https://doi.org/10.17182/hepdata.152385.v1/t12","@type":"Dataset","description":"$95\\%$ CL upper limit on the signal strength in the $m_a-\\sin\\theta$ plane. The shaded area above the curve is excluded.","name":"Figure 8 (Upper right)"},{"@id":"https://doi.org/10.17182/hepdata.152385.v1/t13","@type":"Dataset","description":"$95\\%$ CL upper limit on the signal strength in the $m_a-m_\\chi$ plane. The shaded area below the curve is excluded.","name":"Figure 8 (Lower)"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2823922?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/152385"}],"inLanguage":"en","name":"Search for dark matter produced in association with a pair of bottom quarks in proton-proton collisions at $\\sqrt{s}$ = 13 TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2823922?version=1","version":1}