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MoEDAL search in the CMS beam pipe for magnetic monopoles produced via the Schwinger effect

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arxiv 2402.15682 v2 pith:NQI44F7C submitted 2024-02-24 nucl-ex hep-ex

B. Acharya , J. Alexandre , S.C. Behera , P. Benes , B. Bergmann , S. Bertolucci , A. Bevan , R. Brancaccio
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H. Branzas P. Burian M. Campbell S. Cecchini Y. M. Cho M. de Montigny A. De Roeck J. R. Ellis M. Fairbairn D. Felea M. Frank O. Gould J. Hays A.M. Hirt D. L.-J. Ho P. Q. Hung J. Janecek M. Kalliokoski D. H. Lacarrere C. Leroy G. Levi A. Margiotta R. Maselek A. Maulik N. Mauri N. E. Mavromatos L. Millward V. A. Mitsou E. Musumeci I. Ostrovskiy P.-P. Ouimet J. Papavassiliou L. Patrizii G. E. Pavalas J. L. Pinfold L. A. Popa V. Popa M. Pozzato S. Pospisil A. Rajantie R. Ruiz de Austri Z. Sahnoun M. Sakellariadou K. Sakurai S. Sarkar G. Semenoff A. Shaa G. Sirri K. Sliwa R. Soluk M. Spurio M. Staelens M. Suk M. Tenti V. Togo J. A. Tuszynski A. Upreti V. Vento O. Vives
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classification nucl-exhep-ex
keywords magneticsearchbeamcollisioncollisionsduringeffectexperiment
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abstract

We report on a search for magnetic monopoles (MMs) produced in ultraperipheral Pb--Pb collisions during Run-1 of the LHC. The beam pipe surrounding the interaction region of the CMS experiment was exposed to 184.07 \textmu b$^{-1}$ of Pb--Pb collisions at 2.76 TeV center-of-mass energy per collision in December 2011, before being removed in 2013. It was scanned by the MoEDAL experiment using a SQUID magnetometer to search for trapped MMs. No MM signal was observed. The two distinctive features of this search are the use of a trapping volume very close to the collision point and ultra-high magnetic fields generated during the heavy-ion run that could produce MMs via the Schwinger effect. These two advantages allowed setting the first reliable, world-leading mass limits on MMs with high magnetic charge. In particular, the established limits are the strongest available in the range between 2 and 45 Dirac units, excluding MMs with masses of up to 80 GeV at 95\% confidence level.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Self-Consistent Parker Bound on Magnetic Monopoles

    hep-ph 2026-05 unverdicted novelty 6.0 of 10

    A self-consistent Parker bound on magnetic monopoles is derived using the galactic mean-field dynamo eigenmode and turbulent field seeding and acceleration, producing modified flux limits at low and intermediate masse...

  2. Cosmology-Independent Constraints on Irreducible Magnetic Monopole Background

    hep-ph 2024-12 conditional novelty 6.0 of 10

    Cosmic-ray collisions with interstellar gas create monopoles that would drain galactic magnetic fields, yielding new cosmology-independent Parker-like bounds on light monopoles.

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