arXiv : Magnetic monopole search with the full MoEDAL trapping detector in 13 TeV $pp$ collisions interpreted in photon-fusion and Drell-Yan production

Acharya, B.; Mermod, P.; Patrizii, L.; Ruiz De Austri, R.; Mauri, N.; Cho, Y.M.; Spurio, M.; Alexandre, J.; Popa, V.; Parker, B.; De Montigny, M.; De Roeck, A.; Margiotta, A.; Bergmann, B.; Mavromatos, N.E.; Păvălaş, G.E.; Bernabéu, J.; Sakellariadou, M.; Vento, V.; Hirt, A.M.; Sirri, G.; Felea, D.; Rajantie, A.; Mamuzic, J.; Frank, M.; Sarkar, S.; Papavassiliou, J.; Baines, S.; Zgura, I.S.; Vives, O.; Kim, D.-W.; Santra, A.; Cecchini, S.; Branzas, H.; Ellis, J.R.; Millward, L.; Sahnoun, Z.; Tuszyński, J.A.; Vykydal, Z.; Togo, V.; Staelens, M.; Ostrovskiy, I.; Hays, J.; Shaa, A.; Janecek, J.; Pozzato, M.; Orava, R.; Bevan, A.; Lacarrère, D.H.; Sliwa, K.; Pospisil, S.; Soluk, R.; Suk, M.; Leroy, C.; Mitsou, V.A.; Fairbairn, M.; Pinfold, J.L.; Levi, G.; El Sawy, M.; Benes, P.; Campbell, M.; Mieskolainen, M.; Lionti, A.; Semenoff, G.; Lee, S.C.; Tenti, M.; Wall, A.; Korzenev, A.

doi:10.1103/PhysRevLett.123.021802

Article
Report number	arXiv:1903.08491 ; CERN-EP-2019-039 ; IFIC/19-09 ; KCL-PH-TH/2019-17
Title	Magnetic monopole search with the full MoEDAL trapping detector in 13 TeV $pp$ collisions interpreted in photon-fusion and Drell-Yan production
Author(s)	Acharya, B. (King's Coll. London ; ICTP, Trieste) ; Alexandre, J. (King's Coll. London) ; Baines, S. (King's Coll. London) ; Benes, P. (IEAP CTU, Prague) ; Bergmann, B. (IEAP CTU, Prague) ; Bernabéu, J. (Valencia U., IFIC) ; Bevan, A. (Queen Mary, U. of London) ; Branzas, H. (Bucharest, Inst. Space Science) ; Campbell, M. (CERN) ; Cecchini, S. (INFN, Bologna) ; Cho, Y.M. (Konkuk U. ; CQUeST, Seoul) ; De Montigny, M. (Alberta U.) ; De Roeck, A. (CERN) ; Ellis, J.R. (King's Coll. London ; CERN ; NICPB, Tallinn) ; El Sawy, M. (CERN ; Beni-Suef U. ; British U. in Egypt) ; Fairbairn, M. (King's Coll. London) ; Felea, D. (Bucharest, Inst. Space Science) ; Frank, M. (Concordia U., Montreal) ; Hays, J. (Queen Mary, U. of London) ; Hirt, A.M. (Zurich, ETH) ; Janecek, J. (IEAP CTU, Prague) ; Kim, D.-W. (Gangneung-Wonju Natl. U.) ; Korzenev, A. (Geneva U.) ; Lacarrère, D.H. (CERN) ; Lee, S.C. (Gangneung-Wonju Natl. U.) ; Leroy, C. (Montreal U.) ; Levi, G. (INFN, Bologna ; U. Bologna, DIFA) ; Lionti, A. (Geneva U.) ; Mamuzic, J. (Valencia U., IFIC) ; Margiotta, A. (INFN, Bologna ; U. Bologna, DIFA) ; Mauri, N. (INFN, Bologna) ; Mavromatos, N.E. (King's Coll. London) ; Mermod, P. (Geneva U.) ; Mieskolainen, M. (Helsinki U.) ; Millward, L. (Queen Mary, U. of London) ; Mitsou, V.A. (Valencia U., IFIC) ; Orava, R. (Helsinki U.) ; Ostrovskiy, I. (Alabama U.) ; Papavassiliou, J. (Valencia U., IFIC) ; Parker, B. (Inst. Res. in Schools, UK) ; Patrizii, L. (INFN, Bologna) ; Păvălaş, G.E. (Bucharest, Inst. Space Science) ; Pinfold, J.L. (Alberta U.) ; Popa, V. (Bucharest, Inst. Space Science) ; Pozzato, M. (INFN, Bologna) ; Pospisil, S. (IEAP CTU, Prague) ; Rajantie, A. (Imperial Coll., London) ; Ruiz De Austri, R. (Valencia U., IFIC) ; Sahnoun, Z. (INFN, Bologna ; CNAAG, Algiers) ; Sakellariadou, M. (King's Coll. London) ; Santra, A. (Valencia U., IFIC) ; Sarkar, S. (King's Coll. London) ; Semenoff, G. (British Columbia U.) ; Shaa, A. (Alberta U.) ; Sirri, G. (INFN, Bologna) ; Sliwa, K. (Tufts U.) ; Soluk, R. (Alberta U.) ; Spurio, M. (INFN, Bologna ; U. Bologna, DIFA) ; Staelens, M. (Alberta U.) ; Suk, M. (IEAP CTU, Prague) ; Tenti, M. (INFN, CNAF) ; Togo, V. (INFN, Bologna) ; Tuszyński, J.A. (Alberta U.) ; Vento, V. (Valencia U., IFIC) ; Vives, O. (Valencia U., IFIC) ; Vykydal, Z. (IEAP CTU, Prague) ; Wall, A. (Alabama U.) ; Zgura, I.S. (Bucharest, Inst. Space Science)
Publication	2019-07-10
Imprint	2019-03-20
Number of pages	7
Note	Submitted to Phys.Rev.Lett. 7 pages REVTeX 4, 11 figures, 1 table, matches published version in Physical Review Letters
In:	Phys. Rev. Lett. 123 (2019) 021802
DOI	10.1103/PhysRevLett.123.021802 (publication)
Subject category	hep-ph ; Particle Physics - Phenomenology ; hep-ex ; Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; MoEDAL
Abstract	MoEDAL is designed to identify new physics in the form of stable or pseudostable highly ionizing particles produced in high-energy Large Hadron Collider (LHC) collisions. Here we update our previous search for magnetic monopoles in Run 2 using the full trapping detector with almost four times more material and almost twice more integrated luminosity. For the first time at the LHC, the data were interpreted in terms of photon-fusion monopole direct production in addition to the Drell-Yan-like mechanism. The MoEDAL trapping detector, consisting of 794 kg of aluminum samples installed in the forward and lateral regions, was exposed to 4.0 fb$^{-1}$ of 13 TeV proton-proton collisions at the LHCb interaction point and analyzed by searching for induced persistent currents after passage through a superconducting magnetometer. Magnetic charges equal to or above the Dirac charge are excluded in all samples. Monopole spins 0, 1/2 and 1 are considered and both velocity-independent and -dependent couplings are assumed. This search provides the best current laboratory constraints for monopoles with magnetic charges ranging from two to five times the Dirac charge.
Copyright/License	preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2019-2025 authors (License: CC-BY-4.0)

$Results of multiple pole strength measurements (in units of Dirac charge) for the 87~candidate samples for which at least one of the two first measurement values was above the threshold $|g|>0.4\gd$. More values are observed below threshold than above threshold for all of them, excluding the presence of a monopole with $|g|\geq \gd$.$ $Results of multiple pole strength measurements (in units of Dirac charge) for the 87~candidate samples for which at least one of the two first measurement values was above the threshold $|g|>0.4\gd$. More values are observed below threshold than above threshold for all of them, excluding the presence of a monopole with $|g|\geq \gd$.$ $Production cross-section upper limits at 95\% C.L.\ for the combined DY and \pf monopole pair production model with $\beta$-independent (left) and $\beta$-dependent (right) couplings in 13~\tev $pp$ collisions as a function of mass for spin-0 (top), spin-\half (middle), and spin-1 monopoles (bottom). The colors correspond to different monopole charges. The solid lines are cross-section calculations at leading order.$ Show more plots

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