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Search for high-mass exclusive diphoton production with tagged protons in proton-proton collisions at √s = 13 TeV

CMS Collaboration; TOTEM Collaboration; Tumasyan, A.; Adam, W.; Andrejkovic, J. W.; Bergauer, T.; Chatterjee, S.; Damanakis, K.; Dragicevic, M.; Escalante Del Valle, A.; Hussain, P. S.; Jeitler, M.; Krammer, N.; Lechner, L.; Liko, D.; Mikulec, I.; Paulitsch, P.; Pitters, F. M.; Schieck, J.; ... mehr

Abstract:

A search is presented for high-mass exclusive diphoton production via photon-photon fusion in proton-proton collisions at √𝑠=13  TeV in events where both protons survive the interaction. The analysis utilizes data corresponding to an integrated luminosity of 103  fb−1 collected in 2016–2018 with the central CMS detector and the CMS and TOTEM precision proton spectrometer (PPS). Events that have two photons with high transverse momenta (𝑝𝛾
T>100  GeV), back-to-back in azimuth, and with a large diphoton invariant mass (𝑚𝛾⁢𝛾>350  GeV) are selected. To remove the dominant inclusive diphoton backgrounds, the kinematic properties of the protons detected in PPS are required to match those of the central diphoton system. Only events having opposite-side forward protons detected with a fractional momentum loss between 0.035 and 0.15 (0.18) for the detectors on the negative (positive) side of CMS are considered. One exclusive diphoton candidate is observed for an expected background of 1.1 events. Limits at 95% confidence level are derived for the four-photon anomalous coupling parameters |𝜁1|<0.073  TeV−4 and |𝜁2|<0.15  TeV−4, using an effective field theory. ... mehr


Verlagsausgabe §
DOI: 10.5445/IR/1000173118
Veröffentlicht am 05.08.2024
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Institut für Experimentelle Teilchenphysik (ETP)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Scientific Computing Center (SCC)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 07.2024
Sprache Englisch
Identifikator ISSN: 2470-0010, 2470-0029
KITopen-ID: 1000173118
Erschienen in Physical Review D
Verlag American Physical Society (APS)
Band 110
Heft 1
Seiten Art.-Nr.: 012010
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 16.07.2024
Nachgewiesen in arXiv
Dimensions
Scopus
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