Search for Nonstandard Higgs Bosons Using High Mass Photon Pairs in pp¯→γγ+2 Jets at √s=1.8 TeV
Braden Keim AbbottNew York University, New York, New York 10003M. AbolinsMichigan State University, East Lansing, Michigan 48824В. С. АбрамовInstitute for High Energy Physics, Protvino, RussiaB. S. AcharyaTata Institute of Fundamental Research, Mumbai, IndiaИ. АдамColumbia University, New York, New York 10027D. L. AdamsRice University, Houston, Texas 77005Mark Raymond AdamsUniversity of Illinois at Chicago, Chicago, Illinois 60607S. AhnFermi National Accelerator Laboratory, Batavia, Illinois 60510G. A. AlvesLAFEX, Centro Brasileiro de Pesquisas F sicas, Rio de Janeiro, BrazilN. AmosUniversity of Michigan, Ann Arbor, Michigan 48109E. W. AndersonIowa State University, Ames, Iowa 50011M. M. BaarmandState University of New York, Stony Brook, New York 11794V. BabintsevInstitute for High Energy Physics, Protvino, RussiaL. BabukhadiaUniversity of Arizona, Tuscon, Arizona 85721A. BadenUniversity of Maryland, College Park, Maryland 20742B. BaldinFermi National Accelerator Laboratory, Batavia, Illinois 60510S. BanerjeeTata Institute of Fundamental Research, Mumbai, IndiaJ. BantlyBrown University, Providence, Rhode Island 02912E. BarberisLawrence Berkeley National Laboratory and University of California, Berkeley, California 94720P. BaringerUniversity of Kansas, Lawrence, Kansas 66045J. F. BartlettFermi National Accelerator Laboratory, Batavia, Illinois 60510A. BelyaevMoscow State University, Moscow, RussiaS. B. BeriPanjab University, Chandigarh, IndiaI. A. BertramNorthwestern University, Evanston, Illinois 60208V. A. BezzubovInstitute for High Energy Physics, Protvino, RussiaP. C. BhatFermi National Accelerator Laboratory, Batavia, Illinois 60510V. BhatnagarPanjab University, Chandigarh, IndiaM. BhattacharjeeState University of New York, Stony Brook, New York 11794N. N. BiswasUniversity of Notre Dame, Notre Dame, Indiana 46556G. BlazeyNorthern Illinois University, DeKalb, Illinois 60115S. BlessingFlorida State University, Tallahassee, Florida 32306P. C. BloomUniversity of California, Davis, California 95616A. BoehnleinFermi National Accelerator Laboratory, Batavia, Illinois 60510N. I. BojkoInstitute for High Energy Physics, Protvino, RussiaF. BorcherdingFermi National Accelerator Laboratory, Batavia, Illinois 60510C. BoswellUniversity of California, Riverside, California 92521A. BrandtFermi National Accelerator Laboratory, Batavia, Illinois 60510R. BreedonUniversity of KansasG. BriskinBrown University, Providence, Rhode Island 02912R. BrockMichigan State University, East Lansing, Michigan 48824A. BrossFermi National Accelerator Laboratory, Batavia, Illinois 60510D. BuchholzNorthwestern University, Evanston, Illinois 60208В. С. БуртовойInstitute for High Energy Physics, Protvino, RussiaJ. M. ButlerW. CarvalhoLAFEX, Centro Brasileiro de Pesquisas F sicas, Rio de Janeiro, BrazilD. CaseyMichigan State University, East Lansing, Michigan 48824Z. CasilumState University of New York, Stony Brook, New York 11794H. Castilla-ValdezCINVESTAV, Mexico City, MexicoD. ChakrabortyState University of New York, Stony Brook, New York 11794S. V. ChekulaevInstitute for High Energy Physics, Protvino, RussiaW. ChenState University of New York, Stony Brook, New York 11794S. ChoiSeoul National University, Seoul, KoreaS. ChopraFlorida State University, Tallahassee, Florida 32306B. C. ChoudharyUniversity of California, Riverside, California 92521J. H. ChristensonFermi National Accelerator Laboratory, Batavia, Illinois 60510M. ChungUniversity of Illinois at Chicago, Chicago, Illinois 60607D. R. ClaesUniversity of Nebraska, Lincoln, Nebraska 68588A. ClarkLawrence Berkeley National Laboratory and University of California, Berkeley, California 94720W. G. CobauUniversity of Maryland, College Park, Maryland 20742J. CochranUniversity of California, Riverside, California 92521L. ConeyUniversity of Kansas LAWRENCEW. E. CooperFermi National Accelerator Laboratory, Batavia, Illinois 60510D. CoppageUniversity of Kansas, Lawrence, Kansas 66045C. CretsingerUniversity of Rochester, Rochester, New York 14627D. Cullen-VidalBrown University, Providence, Rhode Island 02912M.A.C. CummingsNorthern Illinois University, DeKalb, Illinois 60115D. CuttsUniversity of Kansas LAWRENCEO. I. DahlLawrence Berkeley National Laboratory and University of California, Berkeley, California 94720K. DavisUniversity of Arizona, Tuscon, Arizona 85721K. DeUniversity of Texas, Arlington, Texas 76019K. Del SignoreUniversity of Michigan, Ann Arbor, Michigan 48109M. DemarteauFermi National Accelerator Laboratory, Batavia, Illinois 60510D. DenisovUniversity of Kansas LAWRENCES. P. DenisovInstitute for High Energy Physics, Protvino, RussiaH. T. DiehlUniversity of KansasM. DiesburgUniversidad de Buenos Aires, Buenos Aires, ArgentinaG. Di LoretoUniversity of Kansas LAWRENCEP. DraperUniversity of Kansas LAWRENCEY. DucrosDelhi University, Delhi, IndiaL. DudkoMoscow State University, Moscow, RussiaS. DugadTata Institute of Fundamental Research, Mumbai, IndiaA. DyshkantDelhi University, Delhi, IndiaD. EdmundsUniversity of Kansas LAWRENCEJ. EllisonUniversity of California, Riverside, California 92521V. D. ElviraState University of New York, Stony Brook, New York 11794R. EngelmannUniversity of KansasS. C. EnoUniversity of Maryland, College Park, Maryland 20742G. EppleyRice University, Houston, Texas 77005P. ErmolovUniversity of Kansas LAWRENCEO. V. EroshinUniversity of Kansas LAWRENCEV. N. EvdokimovCEA Paris-SaclayT. FahlandUniversity of California, Irvine, California 92697M. FatygaUniversity of Rochester, Rochester, New York 14627S. FehérUniversity of Kansas LAWRENCED. FeinUniversity of Kansas LAWRENCET. FerbelUniversity of KansasH. E. FiskUniversity of KansasY. FisyakBrookhaven National Laboratory, Upton, New York 11973E. FlattumUniversity of KansasG. E. FordenUniversity of Kansas LAWRENCE
ABI
Abstract
A search has been carried out for events in the channel $p\overline{p}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\gamma}+2\mathrm{jets}$. Such a signature can characterize the production of a nonstandard Higgs boson together with a $W$ or $Z$ boson. We refer to this nonstandard Higgs, having standard model couplings to vector bosons but no coupling to fermions, as a ``bosonic Higgs.'' With the requirement of two high transverse energy photons and two jets, the diphoton mass $({m}_{\ensuremath{\gamma}\ensuremath{\gamma}})$ distribution is consistent with expected background. A 90 (95)% confidence level (C.L.) upper limit on the cross section as a function of mass is calculated, ranging from 0.60 (0.80) pb for ${m}_{\ensuremath{\gamma}\ensuremath{\gamma}}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}65\phantom{\rule{0ex}{0ex}}\mathrm{GeV}{/c}^{2}$ to 0.26 (0.34) pb for ${m}_{\ensuremath{\gamma}\ensuremath{\gamma}}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}150\phantom{\rule{0ex}{0ex}}\mathrm{GeV}{/c}^{2}$, corresponding to a $95%$ C.L. lower limit on the mass of a bosonic Higgs of $78.5\mathrm{GeV}{/c}^{2}$.
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