@article{f45407e3202a4ed6b8de40c928b5ea9e,
title = "Search for light long-lived neutral particles from Higgs boson decays via vector-boson-fusion production from pp collisions at √s = 13 TeV with the ATLAS detector",
abstract = "A search is reported for long-lived dark photons with masses between 0.1 GeV and 15 GeV, from exotic decays of Higgs bosons produced via vector-boson-fusion. Events that contain displaced collimated Standard Model fermions reconstructed in the calorimeter or muon spectrometer are probed. This search uses the full LHC Run 2 (2015–2018) data sample collected in proton–proton collisions at √s = 13 TeV, corresponding to an integrated luminosity of 139 fb-1. Dominant backgrounds from Standard Model processes and non-collision sources are estimated using data-driven techniques. The observed event yields in the signal regions are consistent with the expected background. Upper limits on the Higgs boson to dark photon branching fraction are reported as a function of the dark photon mean proper decay length or of the dark photon mass and the coupling between the Standard Model and the potential dark sector. This search is combined with previous ATLAS searches obtained in the gluon–gluon fusion and WH production modes. A branching fraction above 10% is excluded at 95% CL for a 125 GeV Higgs boson decaying into two dark photons for dark photon mean proper decay lengths between 173 and 1296 mm and mass of 10 GeV.",
author = "ATLAS Collaboration and L. Zwalinski and W. Zou and O. Zormpa and Zorbas, {T. G.} and K. Zoch and A. Zoccoli and L. {\v Z}ivkovi{\'c} and M. Ziolkowski and J. Zinsser and Zimine, {N. I.} and V. Zhulanov and K. Zhukov and X. Zhuang and Y. Zhu and Y. Zhu and J. Zhu and Zhu, {C. G.} and Y. Zhou and N. Zhou and H. Zhou and B. Zhou and D. Zhong and Z. Zheng and X. Zheng and K. Zheng and J. Zheng and A. Zhemchugov and Z. Zhao and Y. Zhao and T. Zhao and H. Zhao and Z. Zhang and Z. Zhang and Y. Zhang and Y. Zhang and Y. Zhang and X. Zhang and X. Zhang and T. Zhang and S. Zhang and S. Zhang and R. Zhang and P. Zhang and L. Zhang and K. Zhang and J. Zhang and J. Zhang and Zhang, {D. F.} and B. Zhang and M. Zhai and D. Zerwas and S. Zerradi and S. Zenz and T. {\v Z}eni{\v s} and O. Zenin and Zenger, {D. T.} and Zeng, {J. C.} and H. Zeng and C. Zeitnitz and O. Zaplatilek and D. Zanzi and J. Zang and Saa, {J. A.Zamora} and S. Zambito and N. Zakharchuk and T. Zakareishvili and Zak, {Z. K.} and E. Zaid and B. Zabinski and M. Zaazoua and L. Yue and R. Yuan and M. Yuan and Y. Yu and C. Yu and C. Young and Young, {C. J.S.} and S. Younas and K. Yorita and P. Yin and Yexley, {M. R.} and Yeo, {B. K.} and I. Yeletskikh and Y. Yeh and X. Ye and S. Ye and J. Ye and H. Ye and H. Ye and Yap, {Y. C.} and Yao, {W. M.} and Z. Yang and Y. Yang and Y. Yang and X. Yang and X. Yang and T. Yang and S. Yang and Yang, {H. T.} and Yang, {H. J.} and Z. Yan and S. Yan and J. Yan and Y. Yamazaki and T. Yamazaki and H. Yamauchi and E. Yamashita and Y. Yamaguchi and S. Yacoob and B. Yabsley and Z. Xu and Z. Xu and Y. Xu and T. Xu and R. Xu and L. Xu and H. Xu and D. Xu and J. Xiong and A. Xiong and S. Xin and X. Xie and M. Xie and J. Xiang and M. Xia and L. Xia and S. Xella and Wynne, {B. M.} and Wyatt, {T. R.} and J. Wuerzinger and Z. Wu and Y. Wu and X. Wu and Wu, {S. L.} and M. Wu and M. Wu and J. Wu and C. Wu and K. Wraight and S. Wozniewski and Wo{\'z}niak, {K. W.} and Wosiek, {B. K.} and Worm, {S. D.} and Woodward, {E. L.} and Wongel, {A. F.} and H. Wolters and Wolter, {M. W.} and J. Wollrath and Z. Wolffs and M. Wobisch and M. Wittgen and Winter, {J. K.} and Winter, {B. T.} and F. Winklmeier and Winkel, {F. I.} and Windischhofer, {P. J.} and Wilson, {B. J.} and S. Willocq and S. Williams and Williams, {H. H.} and Williams, {D. M.} and Wilkens, {H. G.} and Wilbern, {D. J.} and C. Wiglesworth and M. Wielers and C. Wiel and W. Wiedenmann and L. Wickremasinghe and D. Whiteson and White, {M. J.} and A. White and White, {A. S.} and Wharton, {A. M.} and M. Wessels and N. Wermes and Wenke, {N. S.} and T. Wengler and B. Wendland and T. Wenaus and Wells, {C. J.} and C. Weiser and M. Weirich and J. Weingarten and Weik, {E. J.} and Weidberg, {A. R.} and Y. Wei and C. Wei and Weber, {M. S.} and Weber, {M. S.} and Weber, {H. A.} and C. Weber and Waugh, {B. M.} and G. Watts and E. Watton and Watson, {M. F.} and H. Watson and Watson, {A. T.} and N. Warrack and Ward, {R. J.} and A. Warburton and Z. Wang and Z. Wang and Z. Wang and Y. Wang and Y. Wang and X. Wang and X. Wang and X. Wang and W. Wang and Wang, {W. T.} and T. Wang and S. Wang and Wang, {S. M.} and R. Wang and R. Wang and Wang, {R. J.} and J. Wang and H. Wang and C. Wang and C. Wang and Wang, {A. Z.} and T. Wamorkar and A. Wall and W. Walkowiak and R. Walker and J. Walder and M. Wakida and H. Wahlberg and S. Wahdan and W. Wagner and Wagner, {J. M.} and C. Wagner and S. Wada and I. Vukotic and O. Vujinovic and R. Vuillermet and M. Vreeswijk and Milosavljevic, {M. Vranjes} and N. Vranjes and L. Vozdecky and M. Vozak and Vossebeld, {J. H.} and K. Voss and M. Vos and K. Vorobev and V. Vorobel and B. Vormwald and Toerne, {E. Von} and Ahnen, {J. Von} and J. Shojaii",
note = "Copyright the Author(s) 2024. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.",
year = "2024",
month = jul,
doi = "10.1140/epjc/s10052-024-12902-7",
language = "English",
volume = "84",
pages = "1--29",
journal = "European Physical Journal C",
issn = "1434-6052",
publisher = "Springer, Springer Nature",
number = "7",
}