Accessed 203 times
Last updated on 2026-02-03 13:15
Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV
A search for new physics in events featuring a single photon and missing transverse momentum is presented, using proton-proton $\sqrt{s} = 13~\TeV$ collision data corresponding to an integrated luminosity of 101 \fbinv\ collected by the CMS experiment at the CERN LHC between 2017 and 2018. This analysis, combined with a previous study of 36 \fbinv of 2016 data (totaling 137 \fbinv), reveals no significant deviations from standard model expectations. The results are then used to establish 95% confidence level limits on parameters in theoretical models involving dark matter and large extra dimensions. Compared to the 2016-only analysis, this search achieves up to a 14% improvement in exclusion reach for mediator masses in simplified dark matter models, along with 11% and 10% enhancements in the limits on the effective field theory suppression scale and the fundamental Planck scale, respectively. These results are the most stringent constraints on these parameters to date in the monophoton final state.
Revise your submission
This submission is already
finished. Uploading a new file
will create a new version, and will require
approval by the submission coordinator before
being available publicly.
Distribution of ∆φ(pmiss, pT ) for the 2017 data sets.
Figure 3 right
Data from Figure 3 right
10.17182/hepdata.166403.v2/t4
Distribution of ∆φ(pmiss, pT ) for the 2018 data sets.
Figure 4 left
Data from Figure 4 left
10.17182/hepdata.166403.v2/t5
Comparison of data and background post-fit distributions in the eν + γ CRs for the combination of 2017 and 2018...
Figure 4 right
Data from Figure 4 right
10.17182/hepdata.166403.v2/t6
Comparison of data and background post-fit distributions in the μν +γ CRs for the combination of 2017 and 2018 data...
Figure 5 left
Data from Figure 5 left
10.17182/hepdata.166403.v2/t7
Comparison of data and background post-fit distributions in the ee + γ CRs for the combination of 2017 and 2018...
Figure 5 right
Data from Figure 5 right
10.17182/hepdata.166403.v2/t8
Comparison of data and background post-fit distributions in the μμ + γ CRs for the combination of 2017 and 2018...
Figure 6 left
Data from Figure 6 left
10.17182/hepdata.166403.v2/t9
Comparison of data and background post-fit distributions for the vertical regions for the combination of 2017 and 2018 data sets.
Figure 6 right
Data from Figure 6 right
10.17182/hepdata.166403.v2/t10
Comparison of data and background post-fit distributions for the horizontal regions for the combination of 2017 and 2018 data sets.
Figure 7 CMS left
Data from Figure 7 left
10.17182/hepdata.166403.v2/t11
The ratio of 95% CL upper cross section limits to the theoretical cross section (μ95) for simplified DM models with...
Figure 7 left expected limit curve
Data from Figure 7 left expected limit curve
10.17182/hepdata.166403.v2/t12
The ratio of 95% CL upper cross section limits to the theoretical cross section (μ95) for simplified DM models with...
Figure 7 left observed limit curve
Data from Figure 7 left observed limit curve
10.17182/hepdata.166403.v2/t13
The ratio of 95% CL upper cross section limits to the theoretical cross section (μ95) for simplified DM models with...
Figure 7 Lower left
Data from Figure 7 Lower left
10.17182/hepdata.166403.v2/t14
Relic density data for Vector mediator used in Figure 7.
Figure 7 CMS right
Data from Figure 7 CMS right
10.17182/hepdata.166403.v2/t15
The ratio of 95% CL upper cross section limits to the theoretical cross section (μ95) for simplified DM models with...
Figure 7 right expected limit curve for Axial Vector
Data from Figure 7 expected limit curve for Axial Vector
10.17182/hepdata.166403.v2/t16
The ratio of 95% CL upper cross section limits to the theoretical cross section (μ95) for simplified DM models with...
Figure 7 right observed limit curve for Axial Vector
Data from Figure 7 observed limit curve for Axial Vector
10.17182/hepdata.166403.v2/t17
The ratio of 95% CL upper cross section limits to the theoretical cross section (μ95) for simplified DM models with...
Figure 7 relic Lower right
Data from Figure 7 relic Lower right
10.17182/hepdata.166403.v2/t18
Relic density data for Axial Vector mediator used in Figure 7.
Figure 7 relic Upper right
Data from Figure 7 relic Upper right
10.17182/hepdata.166403.v2/t19
Relic density data for Axial Vector mediator used in Figure 7.
Figure 8 (CMS)
Data from Figure 8 (CMS)
10.17182/hepdata.166403.v2/t20
The 90% CL exclusion limits on the $\chi$--nucleon spin-independent (left) scattering cross sections involving vector operators, respectively, are shown as...
Figure 8 (CDMS)
Data from Figure 8 (CDMS)
10.17182/hepdata.166403.v2/t21
The 90% CL data from CDMS lite experiment used in Figure 8.
Figure 8 (LZ)
Data from Figure 8 (LZ)
10.17182/hepdata.166403.v2/t22
The 90% CL data from LZ experiment used in Figure 8.
Figure 8 (panda)
Data from Figure 8 (panda)
10.17182/hepdata.166403.v2/t23
The 90% CL data from Panda experiment used in Figure 8.
Figure 8 (CRESST-II)
Data from Figure 8 (CRESST-II)
10.17182/hepdata.166403.v2/t24
The 90% CL data from CRESST experiment used in Figure 8.
Figure 8 (XENONnT 2023)
Data from Figure 8 (XENONnT 2023)
10.17182/hepdata.166403.v2/t25
The 90% CL data from XENONnT 2023 experiment used in Figure 8.
Figure 8 right (CMS)
Data from Figure 8 (right) (CMS)
10.17182/hepdata.166403.v2/t26
The 90% CL exclusion limits on the $\chi$--nucleon spin-dependent scattering cross sections involving Axial vector operators are shown as a...
Figure 8 (PICO)
Data from Figure 8 (PICO)
10.17182/hepdata.166403.v2/t27
The 90% CL data from PICO experiment used in Figure 8 (right).
Figure 8 (PICASSO)
Data from Figure 8 (PICASSO)
10.17182/hepdata.166403.v2/t28
The 90% CL data from PICASSO experiment used in Figure 8 (right).
Figure 8 (KAMIOKADE)
Data from Figure 8 (kAMIOKADE)
10.17182/hepdata.166403.v2/t29
The 90% CL data from Kamiokade experiment used in Figure 8 (right).
Figure 8 (Icecube)
Data from Figure 8 (Icecube)
10.17182/hepdata.166403.v2/t30
The 90% CL data from Icecube experiment used in Figure 8 (right).
Limits on Suppression Scale
Figure 9
10.17182/hepdata.166403.v2/t31
Observed and expected 95% CL limits on Suppression Scale as a function of M_{DM}, including ±1σ and ±2σ uncertainty bands.
Figure 10a
Data from Figure 10 (upper curves)
10.17182/hepdata.166403.v2/t32
The 95% \CL\ observed and expected cross-section limits with ±1σ and ±2σ uncertainty bands as a function of $M_D$.
Figure 10b
Data from Figure 10 (theory curve)
10.17182/hepdata.166403.v2/t33
Leading-order theoretical cross-section prediction as a function of $M_D$.
Figure 11
Data from Figure 11
10.17182/hepdata.166403.v2/t34
The 95% \CL\ upper limits on the ADD graviton production cross section as a function of \mD, for $n=3$ extra...
Acceptance Efficiency Table for ADD model
ADD_hepdata.yaml
10.17182/hepdata.166403.v2/t35
Acceptance × Efficiency for ADD models with varying fundamental Planck scale (M_D) and number of extra dimensions (d). This auxiliary...
Acceptance Efficiency Table for DM-EW model
EWK_DM_hepdata.yaml
10.17182/hepdata.166403.v2/t36
Acceptance × Efficiency for DM-EW models with varying dark matter mass.
Acceptance Efficiency Table for DM vector Simplified model
hepdata_vector_acceptance.yaml
10.17182/hepdata.166403.v2/t37
Acceptance × Efficiency for DM simplified model for vector mediator.
Acceptance Efficiency Table for DM Axial vector Simplified model
hepdata_axialvector_acceptance.yaml
10.17182/hepdata.166403.v2/t38
Acceptance × Efficiency for DM simplified model for Axial vector mediator.
Cutflow Table for some signal points
cut_flow_hepdata.yaml
10.17182/hepdata.166403.v2/t39
Cut flow for some signal points.
Version 2
modifications: We have made the following updates to the figures and table following Bill’s suggestions:
We added the cross-section (xsec) column into the table corresponding to Figure 7 (both left and right).
The z-axis title in Figure 7 has been updated to “observed μ₉₅”.
We updated the DM column in Figure 6 (right) and revised the figure accordingly.
We included the latest version of Figure 10, where the lines inside the green band are now properly visible.
Regarding the statistical model:
We do not use any ML models in our analysis. Our datacards are approved by CAT for the likelihood publication.
Loading Data...
Please try again later, or email info@hepdata.net if this error persists.
When using this data, please cite the original publication:
CMS
Collaboration
(2025).
Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV. CMS-SUS-23-016.
Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV. HEPData (collection).
https://doi.org/10.17182/hepdata.166403
or, if you prefer, a specific version of the
record:
CMS
Collaboration
(2026).
Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV (Version 2). HEPData (collection).
https://doi.org/10.17182/hepdata.166403.v2
You can also cite the 39 data
tables
or the 1 additional
resource
individually.
Data tables
Choose table:
CMS
Collaboration
(2026).
“Figure 2 left” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t1
CMS
Collaboration
(2026).
“Figure 2 right” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t2
CMS
Collaboration
(2026).
“Figure 3 left” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t3
CMS
Collaboration
(2026).
“Figure 3 right” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t4
CMS
Collaboration
(2026).
“Figure 4 left” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t5
CMS
Collaboration
(2026).
“Figure 4 right” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t6
CMS
Collaboration
(2026).
“Figure 5 left” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t7
CMS
Collaboration
(2026).
“Figure 5 right” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t8
CMS
Collaboration
(2026).
“Figure 6 left” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t9
CMS
Collaboration
(2026).
“Figure 6 right” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t10
CMS
Collaboration
(2026).
“Figure 7 CMS left” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t11
CMS
Collaboration
(2026).
“Figure 7 left expected limit curve” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t12
CMS
Collaboration
(2026).
“Figure 7 left observed limit curve” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t13
CMS
Collaboration
(2026).
“Figure 7 Lower left” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t14
CMS
Collaboration
(2026).
“Figure 7 CMS right” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t15
CMS
Collaboration
(2026).
“Figure 7 right expected limit curve for Axial Vector” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t16
CMS
Collaboration
(2026).
“Figure 7 right observed limit curve for Axial Vector” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t17
CMS
Collaboration
(2026).
“Figure 7 relic Lower right” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t18
CMS
Collaboration
(2026).
“Figure 7 relic Upper right” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t19
CMS
Collaboration
(2026).
“Figure 8 (CMS)” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t20
CMS
Collaboration
(2026).
“Figure 8 (CDMS)” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t21
CMS
Collaboration
(2026).
“Figure 8 (LZ)” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t22
CMS
Collaboration
(2026).
“Figure 8 (panda)” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t23
CMS
Collaboration
(2026).
“Figure 8 (CRESST-II)” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t24
CMS
Collaboration
(2026).
“Figure 8 (XENONnT 2023)” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t25
CMS
Collaboration
(2026).
“Figure 8 right (CMS)” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t26
CMS
Collaboration
(2026).
“Figure 8 (PICO)” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t27
CMS
Collaboration
(2026).
“Figure 8 (PICASSO)” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t28
CMS
Collaboration
(2026).
“Figure 8 (KAMIOKADE)” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t29
CMS
Collaboration
(2026).
“Figure 8 (Icecube)” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t30
CMS
Collaboration
(2026).
“Limits on Suppression Scale” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t31
CMS
Collaboration
(2026).
“Figure 10a” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t32
CMS
Collaboration
(2026).
“Figure 10b” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t33
CMS
Collaboration
(2026).
“Figure 11” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t34
CMS
Collaboration
(2026).
“Acceptance Efficiency Table for ADD model” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t35
CMS
Collaboration
(2026).
“Acceptance Efficiency Table for DM-EW model” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t36
CMS
Collaboration
(2026).
“Acceptance Efficiency Table for DM vector Simplified model” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t37
CMS
Collaboration
(2026).
“Acceptance Efficiency Table for DM Axial vector Simplified model” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t38
CMS
Collaboration
(2026).
“Cutflow Table for some signal points” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (dataset).
https://doi.org/10.17182/hepdata.166403.v2/t39
Additional resources
Choose resource:
CMS
Collaboration
(2026).
“abstract.txt” of “Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV” (Version 2). HEPData (other).
https://doi.org/10.17182/hepdata.166403.v2/r1
When using this data, please cite the original publication:
CMS
Collaboration
(2025).
Search for new physics in the final state with a single photon and large missing transverse momentum in proton-proton collisions at $\sqrt{s}$ = 13 TeV. CMS-SUS-23-016.
or, if you prefer, a specific version of the
record:
You can also cite the 39 data
tables
or the 1 additional
resource
individually.
Data tables
Choose table:
Additional resources
Choose resource:
Ask a Question
Your question will be emailed to those involved with the submission.
Please mention the relevant table.
Please log in to HEPData to send a question.
Notify participants
Clicking Notify Participants will email all primary uploaders and
reviewers of this submission with your message and (optionally) the status
and messages for each table.
Emails sent.
Notify coordinator
Clicking Notify Coordinator will email the coordinator of this submission
to inform them that all tables have been approved.