Search for soft unclustered energy patterns containing muons in the final state in pp collisions at √s=13 TeV with the ATLAS detector

@article{collaboration2026search,
  title = {{Search for soft unclustered energy patterns containing muons in the final state in pp collisions at $$ \sqrts=13 $$ TeV with the ATLAS detector}},
  author = {The ATLAS collaboration and G. Aad and E. Aakvaag and B. Abbott and S. Abdelhameed and K. Abeling and N. J. Abicht and S. H. Abidi and M. Aboelela and A. Aboulhorma and H. Abramowicz and B. S. Acharya and A. Ackermann and J. Ackerschott and C. Adam Bourdarios and L. Adamczyk and S. V. Addepalli and M. J. Addison and J. Adelman and A. Adiguzel and T. Adye and A. A. Affolder and Y. Afik and M. N. Agaras and A. Aggarwal and C. Agheorghiesei and A. Ahmad and F. Ahmadov and S. Ahuja and X. Ai and G. Aielli and A. Aikot and M. Ait Tamlihat and T. P. A. Åkesson and D. Akiyama and N. N. Akolkar and S. Aktas and G. L. Alberghi and J. Albert and U. Alberti and P. Albicocco and S. Alderweireldt and Z. L. Alegria and M. Aleksa and I. N. Aleksandrov and C. Alexa and T. Alexopoulos and F. Alfonsi and M. Algren and M. Alhroob and B. Ali and H. M. J. Ali and S. Ali and S. W. Alibocus and M. Aliev and G. Alimonti and C. Allaire and B. M. M. Allbrooke and D. R. Allen and J. S. Allen},
  journal = {Journal of High Energy Physics},
  year = {2026},
  month = oct,
  doi = {10.1007/jhep10(2026)206},
  url = {https://link.springer.com/article/10.1007/JHEP10(2026)206},
  note = {CC BY 4.0},
}

TY  - JOUR
TI  - Search for soft unclustered energy patterns containing muons in the final state in pp collisions at √s=13 TeV with the ATLAS detector
AU  - The ATLAS collaboration
AU  - G. Aad
AU  - E. Aakvaag
AU  - B. Abbott
AU  - S. Abdelhameed
AU  - K. Abeling
AU  - N. J. Abicht
AU  - S. H. Abidi
AU  - M. Aboelela
AU  - A. Aboulhorma
AU  - H. Abramowicz
AU  - B. S. Acharya
AU  - A. Ackermann
AU  - J. Ackerschott
AU  - C. Adam Bourdarios
AU  - L. Adamczyk
AU  - S. V. Addepalli
AU  - M. J. Addison
AU  - J. Adelman
AU  - A. Adiguzel
AU  - T. Adye
AU  - A. A. Affolder
AU  - Y. Afik
AU  - M. N. Agaras
AU  - A. Aggarwal
AU  - C. Agheorghiesei
AU  - A. Ahmad
AU  - F. Ahmadov
AU  - S. Ahuja
AU  - X. Ai
AU  - G. Aielli
AU  - A. Aikot
AU  - M. Ait Tamlihat
AU  - T. P. A. Åkesson
AU  - D. Akiyama
AU  - N. N. Akolkar
AU  - S. Aktas
AU  - G. L. Alberghi
AU  - J. Albert
AU  - U. Alberti
AU  - P. Albicocco
AU  - S. Alderweireldt
AU  - Z. L. Alegria
AU  - M. Aleksa
AU  - I. N. Aleksandrov
AU  - C. Alexa
AU  - T. Alexopoulos
AU  - F. Alfonsi
AU  - M. Algren
AU  - M. Alhroob
AU  - B. Ali
AU  - H. M. J. Ali
AU  - S. Ali
AU  - S. W. Alibocus
AU  - M. Aliev
AU  - G. Alimonti
AU  - C. Allaire
AU  - B. M. M. Allbrooke
AU  - D. R. Allen
AU  - J. S. Allen
PY  - 2026
DA  - 2026/10/19
JO  - Journal of High Energy Physics
DO  - 10.1007/jhep10(2026)206
UR  - https://link.springer.com/article/10.1007/JHEP10(2026)206
AB  - A bstract : Soft unclustered energy patterns (SUEPs) refer to high-multiplicity, isotropic distributions of low-momentum particles that could arise in strongly-coupled hidden sector theories. A search for SUEPs whose decay products contain muons in the final state is presented using 140 fb − 1 of proton–proton collision data at √s=13 s = 13 TeV collected by the ATLAS detector at the Large Hadron Collider during 2015–2018. The analysis targets SUEP signatures via gluon–gluon fusion production of a scalar mediator in Hidden Valley scenarios. No significant excess over the Standard Model expectation is observed. Exclusion limits are set on the product of the mediator production cross section and the branching fraction for its decay into a SUEP, down to 0.05 fb for a mediator mass of m S = 750 GeV, 0.4 fb for m S = 400 GeV, and 70 fb for m S = 125 GeV; the last value, when identifying the mediator with the Standard Model Higgs boson, translates to an upper limit on the branching fraction of around 0.2%.
SN  - 1029-8479
ER  -