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Search for supersymmetry with a compressed mass spectrum in the vector boson fusion topology with 1-lepton and 0-lepton final states in proton-proton collisions at $\sqrt{s}=$ 13 TeV

The collaboration
JHEP 1908 (2019) 150, 2019

Abstract (data abstract)
A search for supersymmetric particles produced in the vector boson fusion topology in proton-proton collisions is presented. The search targets final states with one or zero leptons, large missing transverse momentum, and two jets with a large separation in rapidity. The data sample corresponds to an integrated luminosity of 35.9 fb$^{-1}$ of proton-proton collisions at $\sqrt{s}=13$ TeV collected in 2016 with the CMS detector at the LHC. The observed dijet invariant mass and lepton-neutrino transverse mass spectra are found to be consistent with the standard model predictions. Upper limits are set on the cross sections for chargino ($\tilde{\chi}_{1}^{\pm}$) and neutralino ($\tilde{\chi}_{2}^{0}$) production with two associated jets. For a compressed mass spectrum scenario in which the $\tilde{\chi}_{1}^{\pm}$ and $\tilde{\chi}_{2}^{0}$ decays proceed via a light slepton and the mass difference between the lightest neutralino $\tilde{\chi}_{1}^{0}$ and the mass-degenerate particles $\tilde{\chi}_{1}^{\pm}$ and $\tilde{\chi}_{2}^{0}$ is 1 (30) GeV, the most stringent lower limit to date of 112 (215) GeV is set on the mass of these latter two particles.

• #### Signal efficiency

Not in paper.

10.17182/hepdata.88816.v1/t1

Selection efficiency on signal for each channel.

• #### Figure 3a

Data from Figure 3 (upper left), located on page 13.

10.17182/hepdata.88816.v1/t2

The observed $m_{T}$ and $m_{jj}$ distributions in the ejj (upper left), $\mu$~jj (upper right), $\tau_{h}$~jj (lower left), and $0\ell$~jj (lower...

• #### Figure 3b

Data from Figure 3 (upper right), located on page 13.

10.17182/hepdata.88816.v1/t3

The observed $m_{T}$ and $m_{jj}$ distributions in the ejj (upper left), $\mu$~jj (upper right), $\tau_{h}$~jj (lower left), and $0\ell$~jj (lower...

• #### Figure 3c

Data from Figure 3 (lower left), located on page 13.

10.17182/hepdata.88816.v1/t4

The observed $m_{T}$ and $m_{jj}$ distributions in the ejj (upper left), $\mu$~jj (upper right), $\tau_{h}$~jj (lower left), and $0\ell$~jj (lower...

• #### Figure 3d

Data from Figure 3 (lower right), located on page 13.

10.17182/hepdata.88816.v1/t5

The observed $m_{T}$ and $m_{jj}$ distributions in the ejj (upper left), $\mu$~jj (upper right), $\tau_{h}$~jj (lower left), and $0\ell$~jj (lower...

• #### Figure 4a

Data from Figure 4 (upper left), located on page 15.

10.17182/hepdata.88816.v1/t6

Combined 95% CL UL on the cross section as a function of $m(\tilde{\chi}_{2}^{0})=m(\tilde{\chi}_{1}^{\pm})$. The results correspond to $\Delta m=1$ GeV...

• #### Figure 4b

Data from Figure 4 (upper right), located on page 15.

10.17182/hepdata.88816.v1/t7

Combined 95% CL UL on the cross section as a function of $m(\tilde{\chi}_{2}^{0})=m(\tilde{\chi}_{1}^{\pm})$. The results correspond to $\Delta m=1$ GeV...

• #### Figure 4c

Data from Figure 4 (lower left), located on page 15.

10.17182/hepdata.88816.v1/t8

Combined 95% CL UL on the cross section as a function of $m(\tilde{\chi}_{2}^{0})=m(\tilde{\chi}_{1}^{\pm})$. The results correspond to $\Delta m=1$ GeV...

• #### Figure 4d

Data from Figure 4 (lower right), located on page 15.

10.17182/hepdata.88816.v1/t9

Combined 95% CL UL on the cross section as a function of $m(\tilde{\chi}_{2}^{0})=m(\tilde{\chi}_{1}^{\pm})$. The results correspond to $\Delta m=1$ GeV...

• #### Figure 5a 2D

Example location

10.17182/hepdata.88816.v1/t10

(Left) Expected and observed 95% confidence level upper limit (UL) on the signal cross section as a function of $m(\tilde{\chi}_{1}^{\pm})$...

• #### Figure 5a

Example location

10.17182/hepdata.88816.v1/t11

(Left) Expected and observed 95% confidence level upper limit (UL) on the signal cross section as a function of $m(\tilde{\chi}_{1}^{\pm})$...

• #### Figure 5b

Data from Figure 5 (right), located on page 16.

10.17182/hepdata.88816.v1/t12

(Left) Expected and observed 95% confidence level upper limit (UL) on the signal cross section as a function of $m(\tilde{\chi}_{1}^{\pm})$...

• #### Figure 6a 2D

Data from Figure 6 (left), located on page 16.

10.17182/hepdata.88816.v1/t13

(Left) Expected and observed 95% confidence level upper limit (UL) on the signal cross section as a function of $m(\tilde{\chi}_{1}^{\pm})$...

• #### Figure 6a

Data from Figure 6 (left), located on page 16.

10.17182/hepdata.88816.v1/t14

(Left) Expected and observed 95% confidence level upper limit (UL) on the signal cross section as a function of $m(\tilde{\chi}_{1}^{\pm})$...

• #### Figure 6b

Data from Figure 6 (right), located on page 16.

10.17182/hepdata.88816.v1/t15

Example description

• #### Figure 7

Data from Figure 7, located on auxiliary material.

10.17182/hepdata.88816.v1/t16

Combined 95% CL expected upper limit on the signal cross section as a function of $m_{\tilde{\chi}_{2}^{0}}=m_{\tilde{\chi}_{1}^{\pm}}$ for a $\Delta m=1$...

• #### Figure 8

Data from Figure 8, located on auxiliary material.

10.17182/hepdata.88816.v1/t17

Combined 95% CL expected upper limit on the signal cross section as a function of $m_{\tilde{\chi}_{2}^{0}}=m_{\tilde{\chi}_{1}^{\pm}}$ for a $\Delta m=50$...

• #### Figure 9

Data from Figure 9, located on auxiliary material.

10.17182/hepdata.88816.v1/t18

Combined 95% CL observed upper limit on the signal cross section as a function of $m_{\tilde{\chi}_{2}^{0}}=m_{\tilde{\chi}_{1}^{\pm}}$ for a $\Delta m=1$...

• #### Figure 10

Data from Figure 10, located on auxiliary material.

10.17182/hepdata.88816.v1/t19

Combined 95% CL observed upper limit on the signal cross section as a function of $m_{\tilde{\chi}_{2}^{0}}=m_{\tilde{\chi}_{1}^{\pm}}$ for a $\Delta m=50$...

• #### Figure 11

Data from Figure 11, located on auxiliary material.

10.17182/hepdata.88816.v1/t20

Covariance matrix from the combined fit of the $m_{ extrm{jj}}$ and $m_{ extrm{T}}$ distributions in the $0\ell extrm{jj}$ and \$1\ell...