Search for lepton-flavor violating decays of heavy resonances and quantum black holes to eμ final states in proton-proton collisions at $$ \sqrt{s}=13 $$ TeV
- Yerevan Phys. Inst.
- Vienna, OAW
- Vienna, OAW; TU Vienna
- Minsk, Inst. Nucl. Problems
- Antwerp U.
- Vrije U., Brussels
- Brussels U.
- Gent U.
- Gent U.; IRFU, Saclay
- Louvain U.
- Rio de Janeiro, CBPF
- Rio de Janeiro State U.
- Rio de Janeiro State U.; U. Campinas
- Rio de Janeiro State U.; Rio Grande do Sul U.
- Rio de Janeiro State U.; Pelotas U.
- Sao Paulo, IFT
- ABC Federal U.
- Sofiya, Inst. Nucl. Res.
- Sofiya U.
- BeiHang U.; Brussels U.
- BeiHang U.
- Beijing, Inst. High Energy Phys.
- Peking U.
- Tsinghua U., Beijing
- Andes U., Bogota
- Split Tech. U.
- Split U.
- Boskovic Inst., Zagreb
- Boskovic Inst., Zagreb; Moscow, ITEP
- Cyprus U.
- Charles U.; Dubna, JINR
- San Francisco de Quito U.
- Cairo, Acad. Sci. Res. Tech.; Cairo U.
- Cairo, Acad. Sci. Res. Tech.; Suez Canal U.; British U. in Egypt
- Cairo, Acad. Sci. Res. Tech.; British U. in Egypt
- NICPB, Tallinn
- Helsinki U.
- Helsinki Inst. of Phys.
- Lappeenranta U. Tech.
- IRFU, Saclay
- Ecole Polytechnique; Jeddah U.
- Ecole Polytechnique
- Strasbourg, IPHC; Haute Alsace U.
- Strasbourg, IPHC
- CC, Villeurbanne
- Lyon, IPN
- Lyon, IPN; Moscow State U.
- GTU, Tbilisi; Tbilisi State U.
- Tbilisi State U.; Dubna, JINR
- Aachen, Tech. Hochsch.
- Aachen, Tech. Hochsch.; Moscow State U.
- Aachen, Tech. Hochsch.; CERN
- DESY
- DESY; Aachen, Tech. Hochsch.
- DESY; Hamburg U.
- DESY; Brandenburg Tech. U.
- Hamburg U.
- KIT, Karlsruhe, EKP
- KIT, Karlsruhe, EKP; CERN
- Democritos Nucl. Res. Ctr.
- Athens U.
- Natl. Tech. U., Athens
- Ioannina U.
- Eotvos U.
- Budapest, RMKI
- Budapest, RMKI; Debrecen, Inst. Nucl. Res.
- Budapest, RMKI; Eotvos U.
- Debrecen, Inst. Nucl. Res.
- Debrecen, Inst. Nucl. Res.; U. Debrecen, Inst. Phys.
- U. Debrecen, Inst. Phys.; Eotvos U.
- U. Debrecen, Inst. Phys.
- Bangalore, Indian Inst. Sci.
- Bhubaneswar, NISER; Indian Inst. Tech., Bhubaneswar
- Bhubaneswar, NISER
- Bhubaneswar, NISER; Bhubaneswar, Inst. Phys.
- Panjab U.
- Delhi U.
- Saha Inst.
- Indian Inst. Tech., Madras
- Bhabha Atomic Res. Ctr.
- Bhabha Atomic Res. Ctr.; CERN
- TIFR, Mumbai, DHEP
- TIFR, Mumbai, DHEP; Visva Bharati U.
- TIFR, Mumbai, DHEP; Ruhuna U.
- IISER, Pune
- IPM, Tehran; Isfahan Tech. U.
- IPM, Tehran
- IPM, Tehran; Yazd U.
- IPM, Tehran; Islamic Azad U., Sci. Res. Branch, Tehran
- University Coll., Dublin
- INFN, Bari; Bari U.
- INFN, Bari
- INFN, Bari; Bari Polytechnic
- INFN, Bari; CERN
- INFN, Bologna
- INFN, Bologna; Bologna U.
- INFN, Catania; Catania U.
- INFN, Catania
- INFN, Florence
- INFN, Florence; Florence U.
- INFN, Florence; Siena U.
- Frascati
- Frascati; CERN
- INFN, Genoa; Genoa U.
- INFN, Genoa
- INFN, Milan Bicocca
- Milan Bicocca U.
- INFN, Milan Bicocca; Milan Bicocca U.
- INFN, Milan Bicocca; Milan Bicocca U.; CERN
- INFN, Naples
- INFN, Naples; Basilicata U., Potenza
- INFN, Naples; Guglielmo Marconi U.; CERN
- INFN, Naples; Naples U.
- INFN, Naples; CERN
- INFN, Padua
- INFN, Padua; Padua U.
- INFN, Pavia
- INFN, Pavia; Pavia U.
- INFN, Perugia; Perugia U.
- INFN, Perugia
- INFN, Pisa
- INFN, Pisa; CERN
- INFN, Pisa; Pisa U.
- INFN, Pisa; Pisa, Scuola Normale Superiore
- INFN, Pisa; Siena U.
- INFN, Rome; Rome U.
- INFN, Rome
- INFN, Turin; Turin U.
- INFN, Turin; Piemonte Orientale U., Novara
- INFN, Turin
- INFN, Trieste
- INFN, Trieste; Trieste U.
- CHEP, Taegu
- Chonnam Natl. U.
- Hanyang U.
- Korea U.
- Seoul Natl. U.
- Seoul U.
- Sungkyunkwan U.
- Vilnius U.
- Malaya U.
- Malaya U.; IIUM, Kuala Lumpur
- Malaya U.; MOSTI, Malaysian Nucl. Agency, Kajang
- CINVESTAV, IPN
- CINVESTAV, IPN; Conacyt, Mexico
- Iberoamericana U.
- Puebla U., Inst. Fis.
- San Luis Potosi U.
- Auckland U.
- Canterbury U.
- Quaid-i-Azam U.
- NCBJ, Swierk
- Warsaw U.
- Warsaw U.; Warsaw U. of Tech.
- LIP, Lisbon
- Dubna, JINR
- Dubna, JINR; Moscow Phys. Eng. Inst.
- St. Petersburg, INP
- St. Petersburg, INP; St. Petersburg Polytechnic Inst.
- St. Petersburg, INP; Florida U.
- Moscow, INR
- Moscow, ITEP
- Moscow, MIPT
- Moscow, MIPT; Moscow Phys. Eng. Inst.
- Moscow Phys. Eng. Inst.; Lebedev Inst.
- Moscow Phys. Eng. Inst.
- Lebedev Inst.
- Lebedev Inst.; Moscow Phys. Eng. Inst.
- Moscow State U.
- Moscow State U.; Caltech
- Novosibirsk State U.; Novosibirsk, IYF
- Serpukhov, IHEP
- VINCA Inst. Nucl. Sci., Belgrade; Belgrade U.
- VINCA Inst. Nucl. Sci., Belgrade
- Madrid, CIEMAT
- Madrid, Autonoma U.
- Oviedo U.
- Cantabria Inst. of Phys.
- CERN
- CERN; INFN, Pavia
- CERN; Brandenburg Tech. U.
- CERN; TU Vienna
- CERN; VINCA Inst. Nucl. Sci., Belgrade
- CERN; Pisa, Scuola Normale Superiore
- CERN; Athens U.
- CERN; Riga Tech. U.
- PSI, Villigen
- PSI, Villigen; Zurich U.
- Zurich, ETH
- Zurich U.
- Zurich U.; Stefan Meyer Inst. Subatomare Phys.
- Taiwan, Natl. Central U.
- Taiwan, Natl. Taiwan U.
- Chulalongkorn U.
- Cukurova U.; Gaziosmanpasa U.
- Cukurova U.
- Cukurova U.; Adiyaman U.
- Cukurova U.; Istanbul Aydin U.
- Cukurova U.; Mersin U.
- Cukurova U.; Piri Reis U., Istanbul
- Middle East Tech. U., Ankara; Izmir Inst. Tech.
- Middle East Tech. U., Ankara; Necmettin Erbakan U., Konya
- Middle East Tech. U., Ankara
- Bogazici U.
- Bogazici U.; Marmara U.
- Bogazici U.; Kafkas U.
- Bogazici U.; Istanbul Bilgi U.
- Istanbul, Tech. U.
- Inst. Scintill. Mat., Kharkiv
- Kharkov, KIPT
- Bristol U.
- Bristol U.; Rutherford
- Rutherford
- Rutherford; Southampton U.
- Imperial Coll., London
- Imperial Coll., London; Monash U.
- Imperial Coll., London; Moscow, ITEP
- Imperial Coll., London; IAC, La Laguna
- Imperial Coll., London; CERN
- Brunel U.
- Baylor U.
- Catholic U. America
- Alabama U.
- Boston U.
- Brown U.
- Brown U.; Bethel Coll.
- UC, Davis
- UCLA
- UC, Riverside
- UC, San Diego
- UC, San Diego; Utah Valley U.
- UC, Santa Barbara
- Caltech
- Carnegie Mellon U.
- Colorado U.
- Cornell U.
- Fermilab
- Fermilab; Purdue U.
- Florida U.
- Florida Intl. U.
- Florida State U.
- Florida Inst. Tech.
- Illinois U., Chicago
- Iowa U.; Beykent U.
- Iowa U.
- Iowa U.; Bingöl U.
- Iowa U.; Erzincan U.
- Iowa U.; Sinop U.
- Iowa U.; Mimar Sinan U.
- Johns Hopkins U.
- Kansas U.
- Kansas State U.
- LLNL, Livermore
- Maryland U.
- MIT
- Minnesota U.
- Mississippi U.
- Nebraska U.
- SUNY, Buffalo
- Northeastern U.
- Northwestern U.
- Notre Dame U.
- Notre Dame U.; Dubna, JINR
- Ohio State U.
- Princeton U.
- Puerto Rico U., Mayaguez
- Purdue U.
- Purdue U., Calumet
- Rice U.
- Rochester U.
- Rockefeller U.
- Rutgers U., Piscataway
- Tennessee U.
- Texas A-M; Texas A&M U. Qatar, Doha
- Texas A-M
- Texas A-M; CHEP, Taegu
- Texas Tech.
- Vanderbilt U.
- Virginia U.
- Wayne State U.
- Wisconsin U., Madison
A search is reported for heavy resonances decaying into eμ final states in proton-proton collisions recorded by the CMS experiment at the CERN LHC at $$ \sqrt{s}=13 $$ TeV, corresponding to an integrated luminosity of 35.9 fb$$^{−1}$$. The search focuses on resonance masses above 200 GeV. With no evidence found for physics beyond the standard model in the eμ mass spectrum, upper limits are set at 95% confidence level on the product of the cross section and branching fraction for this lepton-flavor violating signal. Based on these results, resonant τ sneutrino production in R-parity violating supersymmetric models is excluded for masses below 1.7 TeV, for couplings λ$$_{132}$$ = λ$$_{231}$$ = λ$$_{311}^{′}$$ = 0.01. Heavy Z$$^{′}$$ gauge bosons with lepton-flavor violating transitions are excluded for masses up to 4.4 TeV. The eμ mass spectrum is also interpreted in terms of non-resonant contributions from quantum black-hole production in models with one to six extra spatial dimensions, and lower mass limits are found between 3.6 and 5.6 TeV. In all interpretations used in this analysis, the results of this search improve previous limits by about 1 TeV. These limits correspond to the most sensitive values obtained at colliders.
- Research Organization:
- ABC Federal U.; Aachen, Tech. Hochsch.; Adiyaman U.; Alabama U.; Andes U., Bogota; Antwerp U.; Athens U.; Auckland U.; Bangalore, Indian Inst. Sci.; Bari Polytechnic; Bari U.; Basilicata U., Potenza; Baylor U.; BeiHang U.; Beijing, Inst. High Energy Phys.; Belgrade U.; Bethel Coll.; Beykent U.; Bhabha Atomic Res. Ctr.; Bhubaneswar, Inst. Phys.; Bhubaneswar, NISER; Bingöl U.; Bogazici U.; Bologna U.; Boskovic Inst., Zagreb; Boston U.; Brandenburg Tech. U.; Bristol U.; British U. in Egypt; Brown U.; Brunel U.; Brussels U.; Budapest, RMKI; CC, Villeurbanne; CERN; CHEP, Taegu; CINVESTAV, IPN; Cairo U.; Cairo, Acad. Sci. Res. Tech.; Caltech; Cantabria Inst. of Phys.; Canterbury U.; Carnegie Mellon U.; Catania U.; Catholic U. America; Charles U.; Chonnam Natl. U.; Chulalongkorn U.; Colorado U.; Conacyt, Mexico; Cornell U.; Cukurova U.; Cyprus U.; DESY; Debrecen, Inst. Nucl. Res.; Delhi U.; Democritos Nucl. Res. Ctr.; Dubna, JINR; Ecole Polytechnique; Eotvos U.; Erzincan U.; Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Florence U.; Florida Inst. Tech.; Florida Intl. U.; Florida State U.; Florida U.; Frascati; GTU, Tbilisi; Gaziosmanpasa U.; Genoa U.; Gent U.; Guglielmo Marconi U.; Hamburg U.; Hanyang U.; Haute Alsace U.; Helsinki Inst. of Phys.; Helsinki U.; IAC, La Laguna; IISER, Pune; IIUM, Kuala Lumpur; INFN, Bari; INFN, Bologna; INFN, Catania; INFN, Florence; INFN, Genoa; INFN, Milan Bicocca; INFN, Naples; INFN, Padua; INFN, Pavia; INFN, Perugia; INFN, Pisa; INFN, Rome; INFN, Trieste; INFN, Turin; IPM, Tehran; IRFU, Saclay; Iberoamericana U.; Illinois U., Chicago; Imperial Coll., London; Indian Inst. Tech., Bhubaneswar; Indian Inst. Tech., Madras; Inst. Scintill. Mat., Kharkiv; Ioannina U.; Iowa U.; Isfahan Tech. U.; Islamic Azad U., Sci. Res. Branch, Tehran; Istanbul Aydin U.; Istanbul Bilgi U.; Istanbul, Tech. U.; Izmir Inst. Tech.; Jeddah U.; Johns Hopkins U.; KIT, Karlsruhe, EKP; Kafkas U.; Kansas State U.; Kansas U.; Kharkov, KIPT; Korea U.; LIP, Lisbon; Lappeenranta U. Tech.; Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Lebedev Inst.; Louvain U.; Lyon, IPN; MIT; MOSTI, Malaysian Nucl. Agency, Kajang; Madrid, Autonoma U.; Madrid, CIEMAT; Malaya U.; Marmara U.; Maryland U.; Mersin U.; Middle East Tech. U., Ankara; Milan Bicocca U.; Mimar Sinan U.; Minnesota U.; Minsk, Inst. Nucl. Problems; Mississippi U.; Monash U.; Moscow Phys. Eng. Inst.; Moscow State U.; Moscow, INR; Moscow, ITEP; Moscow, MIPT; NCBJ, Swierk; NICPB, Tallinn; Naples U.; Natl. Tech. U., Athens; Nebraska U.; Necmettin Erbakan U., Konya; Northeastern U.; Northwestern U.; Notre Dame U.; Novosibirsk State U.; Novosibirsk, IYF; Ohio State U.; Oviedo U.; PSI, Villigen; Padua U.; Panjab U.; Pavia U.; Peking U.; Pelotas U.; Perugia U.; Piemonte Orientale U., Novara; Piri Reis U., Istanbul; Pisa U.; Pisa, Scuola Normale Superiore; Princeton U.; Puebla U., Inst. Fis.; Puerto Rico U., Mayaguez; Purdue U.; Purdue U., Calumet; Quaid-i-Azam U.; Rice U.; Riga Tech. U.; Rio Grande do Sul U.; Rio de Janeiro State U.; Rio de Janeiro, CBPF; Rochester U.; Rockefeller U.; Rome U.; Ruhuna U.; Rutgers U., Piscataway; Rutherford; SUNY, Buffalo; Saha Inst.; San Francisco de Quito U.; San Luis Potosi U.; Sao Paulo, IFT; Seoul Natl. U.; Seoul U.; Serpukhov, IHEP; Siena U.; Sinop U.; Sofiya U.; Sofiya, Inst. Nucl. Res.; Southampton U.; Split Tech. U.; Split U.; St. Petersburg Polytechnic Inst.; St. Petersburg, INP; Stefan Meyer Inst. Subatomare Phys.; Strasbourg, IPHC; Suez Canal U.; Sungkyunkwan U.; TIFR, Mumbai, DHEP; TU Vienna; Taiwan, Natl. Central U.; Taiwan, Natl. Taiwan U.; Tbilisi State U.; Tennessee U.; Texas A&M U. Qatar, Doha; Texas A-M; Texas Tech.; Trieste U.; Tsinghua U., Beijing; Turin U.; U. Campinas; U. Debrecen, Inst. Phys.; UC, Davis; UC, Riverside; UC, San Diego; UC, Santa Barbara; UCLA; University Coll., Dublin; Utah Valley U.; VINCA Inst. Nucl. Sci., Belgrade; Vanderbilt U.; Vienna, OAW; Vilnius U.; Virginia U.; Visva Bharati U.; Vrije U., Brussels; Warsaw U.; Warsaw U. of Tech.; Wayne State U.; Wisconsin U., Madison; Yazd U.; Yerevan Phys. Inst.; Zurich U.; Zurich, ETH
- Sponsoring Organization:
- US Department of Energy
- Grant/Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1420413
- Report Number(s):
- CERN-EP-2018-001; CMS-EXO-16-058; FERMILAB-PUB-18-037-CMS; oai:inspirehep.net:1653123; arXiv:1802.01122
- Journal Information:
- JHEP, Journal Name: JHEP Vol. 04
- Country of Publication:
- United States
- Language:
- English
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