Search for Inelastic Dark Matter in Events with Two Displaced Muons and Missing Transverse Momentum in Proton-Proton Collisions at √s=13 TeV

The CMS Collaboration

doi:10.1103/PhysRevLett.132.041802

Search for Inelastic Dark Matter in Events with Two Displaced Muons and Missing Transverse Momentum in Proton-Proton Collisions at √s=13 TeV

The CMS Collaboration

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

A search for dark matter in events with a displaced nonresonant muon pair and missing transverse momentum is presented. The analysis is performed using an integrated luminosity of 138 fb^-1 of protonproton (pp) collision data at a center-of-mass energy of 13 TeV produced by the LHC in 2016.2018. No significant excess over the predicted backgrounds is observed. Upper limits are set on the product of the inelastic dark matter production cross section σ(pp → A′ → χ₁χ₂) and the decay branching fraction ℬ(χ₂ → χ₁μ⁺μ^-), where A′ is a dark photon and +++χ₁ and χ₂ are states in the dark sector with near mass degeneracy. This is the first dedicated collider search for inelastic dark matter.

Original language	English (US)
Article number	041802
Journal	Physical review letters
Volume	132
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.132.041802
State	Published - Jan 26 2024

Funding

We thank Brian Shuve for providing calculations for some of the cross sections used in this Letter. We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid and other centers for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC, the CMS detector, and the supporting computing infrastructure provided by the following funding agencies: BMBWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, FAPERGS, and FAPESP (Brazil); MES and BNSF (Bulgaria); CERN; CAS, MoST, and NSFC (China); MINCIENCIAS (Colombia); MSES and CSF (Croatia); RIF (Cyprus); SENESCYT (Ecuador); MoER, ERC PUT, and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRI (Greece); NKFIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); MES (Latvia); LAS (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); MOS (Montenegro); MBIE (New Zealand); PAEC (Pakistan); MES and NSC (Poland); FCT (Portugal); MESTD (Serbia); MCIN/AEI and PCTI (Spain); MOSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); MST (Taipei); MHESI and NSTDA (Thailand); TUBITAK and TENMAK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (U.S.).

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.132.041802

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@article{b670f8225acf48baa49802f004e8d427,

title = "Search for Inelastic Dark Matter in Events with Two Displaced Muons and Missing Transverse Momentum in Proton-Proton Collisions at √s=13 TeV",

abstract = "A search for dark matter in events with a displaced nonresonant muon pair and missing transverse momentum is presented. The analysis is performed using an integrated luminosity of 138 fb-1 of protonproton (pp) collision data at a center-of-mass energy of 13 TeV produced by the LHC in 2016.2018. No significant excess over the predicted backgrounds is observed. Upper limits are set on the product of the inelastic dark matter production cross section σ(pp → A′ → χ1χ2) and the decay branching fraction ℬ(χ2 → χ1μ+μ-), where A′ is a dark photon and +++χ1 and χ2 are states in the dark sector with near mass degeneracy. This is the first dedicated collider search for inelastic dark matter.",

author = "{The CMS Collaboration} and A. Hayrapetyan and A. Tumasyan and W. Adam and Andrejkovic, {J. W.} and T. Bergauer and S. Chatterjee and K. Damanakis and M. Dragicevic and {Del Valle}, {A. Escalante} and R. Fr{\"u}hwirth and M. Jeitler and N. Krammer and L. Lechner and D. Liko and I. Mikulec and P. Paulitsch and Pitters, {F. M.} and J. Schieck and R. Sch{\"o}fbeck and D. Schwarz and S. Templ and W. Waltenberger and Wulz, {C. E.} and Darwish, {M. R.} and T. Janssen and {Van Mechelen}, P. and {Rejeb Sfar}, H. and {Van Putte}, S. and {Van Remortel}, N. and F. Blekman and Bols, {E. S.} and J. D'Hondt and M. Delcourt and {El Faham}, H. and S. Lowette and S. Moortgat and A. Morton and D. M{\"u}ller and Sahasransu, {A. R.} and S. Tavernier and {Van Doninck}, W. and D. Beghin and B. Bilin and B. Clerbaux and {De Lentdecker}, G. and L. Favart and A. Grebenyuk and Hahn, {K. A.} and Schmitt, {M. H.} and M. Velasco",

year = "2024",

month = jan,

day = "26",

doi = "10.1103/PhysRevLett.132.041802",

language = "English (US)",

volume = "132",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

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T1 - Search for Inelastic Dark Matter in Events with Two Displaced Muons and Missing Transverse Momentum in Proton-Proton Collisions at √s=13 TeV

AU - The CMS Collaboration

AU - Hayrapetyan, A.

AU - Tumasyan, A.

AU - Adam, W.

AU - Andrejkovic, J. W.

AU - Bergauer, T.

AU - Chatterjee, S.

AU - Damanakis, K.

AU - Dragicevic, M.

AU - Del Valle, A. Escalante

AU - Frühwirth, R.

AU - Jeitler, M.

AU - Krammer, N.

AU - Lechner, L.

AU - Liko, D.

AU - Mikulec, I.

AU - Paulitsch, P.

AU - Pitters, F. M.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Schwarz, D.

AU - Templ, S.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Darwish, M. R.

AU - Janssen, T.

AU - Van Mechelen, P.

AU - Rejeb Sfar, H.

AU - Van Putte, S.

AU - Van Remortel, N.

AU - Blekman, F.

AU - Bols, E. S.

AU - D'Hondt, J.

AU - Delcourt, M.

AU - El Faham, H.

AU - Lowette, S.

AU - Moortgat, S.

AU - Morton, A.

AU - Müller, D.

AU - Sahasransu, A. R.

AU - Tavernier, S.

AU - Van Doninck, W.

AU - Beghin, D.

AU - Bilin, B.

AU - Clerbaux, B.

AU - De Lentdecker, G.

AU - Favart, L.

AU - Grebenyuk, A.

AU - Hahn, K. A.

AU - Schmitt, M. H.

AU - Velasco, M.

PY - 2024/1/26

Y1 - 2024/1/26

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AB - A search for dark matter in events with a displaced nonresonant muon pair and missing transverse momentum is presented. The analysis is performed using an integrated luminosity of 138 fb-1 of protonproton (pp) collision data at a center-of-mass energy of 13 TeV produced by the LHC in 2016.2018. No significant excess over the predicted backgrounds is observed. Upper limits are set on the product of the inelastic dark matter production cross section σ(pp → A′ → χ1χ2) and the decay branching fraction ℬ(χ2 → χ1μ+μ-), where A′ is a dark photon and +++χ1 and χ2 are states in the dark sector with near mass degeneracy. This is the first dedicated collider search for inelastic dark matter.

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DO - 10.1103/PhysRevLett.132.041802

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SN - 0031-9007

VL - 132

JO - Physical review letters

JF - Physical review letters

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M1 - 041802

ER -

Search for Inelastic Dark Matter in Events with Two Displaced Muons and Missing Transverse Momentum in Proton-Proton Collisions at √s=13 TeV

Abstract

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ASJC Scopus subject areas

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