First Search for Gravitational Waves from Known Pulsars with Advanced LIGO
- Creators
- Abbott, B. P.
- Abbott, R.
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Adhikari, R. X.
- Ananyeva, A.
- Anderson, S. B.
- Appert, S.
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Arai, K.
- Araya, M. C.
- Barayoga, J. C.
- Barish, B. C.
- Berger, B. K.
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Billingsley, G.
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Biscans, S
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Blackburn, J. K.
- Bork, R.
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Brooks, A. F.
- Brunett, S.
- Cahillane, C.
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Callister, T. A.
- Cepeda, C. B.
- Couvares, P.
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Coyne, D. C.
- Drever, R. W. P.
- Ehrens, P.
- Eichholz, J.
- Etzel, T.
- Fries, E. M.
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Gossan, S. E.
- Gushwa, K. E.
- Gustafson, E. K.
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Hall, E. D.
- Heptonstall, A. W.
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Isi, M.
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Kanner, J. B.
- Kondrashov, V.
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Korth, W. Z.
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Kozak, D. B.
- Lazzarini, A.
- Maros, E.
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Massinger, T. J.
- Matichard, F.
- McIntyre, G.
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McIver, J.
- Meshkov, S.
- Pedraza, M.
- Perreca, A.
- Quintero, E. A.
- Reitze, D. H.
- Robertson, N. A.
- Rollins, J. G.
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Sachdev, S.
- Sanchez, E. J.
- Schmidt, P.
- Singer, A.
- Smith, R. J. E.
- Taylor, R.
- Torrie, C. I.
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Tso, R.
- Urban, A. L.
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Vajente, G.
- Vass, S.
- Venugopalan, G.
- Wade, A. R.
- Wallace, L.
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Weinstein, A. J.
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Williams, R. D.
Abstract
A search is performed for Higgs-boson-mediated flavor-changing neutral currents in the decays of top quarks. The search is based on proton-proton collision data corresponding to an integrated luminosity of 19.7 fb^(−1) at a center-of-mass energy of 8 TeV collected with the CMS detector at the LHC. Events in which a top quark pair is produced with one top quark decaying into a charm or up quark and a Higgs boson (H), and the other top quark decaying into a bottom quark and a W boson are selected. The Higgs boson in these events is assumed to subsequently decay into either dibosons or difermions. No significant excess is observed above the expected standard model background, and an upper limit at the 95% confidence level is set on the branching fraction ℬ(t → Hc) of 0.40% and ℬ(t → Hu) of 0.55%, where the expected upper limits are 0.43% and 0.40%, respectively. These results correspond to upper limits on the square of the flavor-changing Higgs boson Yukawa couplings |λ_(tc)H|^2 < 6.9 × 10^(−3) and |λ_(tu)H|^2 < 9.8 × 10^(−3).
Additional Information
© 2017 American Astronomical Society. Received 2017 January 26. Accepted 2017 March 15. Published 2017 April 7. The authors gratefully acknowledge the support of the United States National Science Foundation (NSF) for the construction and operation of the LIGO Laboratory and Advanced LIGO as well as the Science and Technology Facilities Council (STFC) of the United Kingdom, the Max-Planck-Society (MPS), and the State of Niedersachsen/Germany for support of the construction of Advanced LIGO and construction and operation of the GEO600 detector. Additional support for Advanced LIGO was provided by the Australian Research Council. The authors gratefully acknowledge the Italian Istituto Nazionale di Fisica Nucleare (INFN), the French Centre National de la Recherche Scientifique (CNRS), and the Foundation for Fundamental Research on Matter supported by the Netherlands Organisation for Scientific Research, for the construction and operation of the Virgo detector and the creation and support of the EGO consortium. The authors also gratefully acknowledge research support from these agencies as well as by the Council of Scientific and Industrial Research of India, Department of Science and Technology, India, Science & Engineering Research Board (SERB), India, Ministry of Human Resource Development, India, the Spanish Ministerio de EconomÃa y Competitividad, the Vicepresidència i Conselleria d'Innovació Recerca i Turisme and the Conselleria d'Educació i Universitat of the Govern de les Illes Balears, the National Science Centre of Poland, the European Commission, the Royal Society, the Scottish Funding Council, the Scottish Universities Physics Alliance, the Hungarian Scientific Research Fund (OTKA), the Lyon Institute of Origins (LIO), the National Research Foundation of Korea, Industry Canada and the Province of Ontario through the Ministry of Economic Development and Innovation, the Natural Science and Engineering Research Council Canada, Canadian Institute for Advanced Research, the Brazilian Ministry of Science, Technology, and Innovation, Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Russian Foundation for Basic Research, the Leverhulme Trust, the Research Corporation, Ministry of Science and Technology (MOST), Taiwan, and the Kavli Foundation. The authors gratefully acknowledge the support of the NSF, STFC, MPS, INFN, CNRS, and the State of Niedersachsen/Germany for provision of computational resources.Attached Files
Published - Abbott_2017_ApJ_839_12.pdf
Submitted - 1701.07709.pdf
Erratum - Abbott_2017_ApJ_851_71.pdf
Files
Additional details
- Eprint ID
- 76550
- Resolver ID
- CaltechAUTHORS:20170413-084028541
- NSF
- Science and Technology Facilities Council (STFC)
- Max Planck Society
- State of Niedersachsen/Germany
- Australian Research Council
- Istituto Nazionale di Fisica Nucleare (INFN)
- Centre National de la Recherche Scientifique (CNRS)
- Stichting voor Fundamenteel Onderzoek der Materie (FOM)
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)
- European Gravitational Observatory
- Council of Scientific and Industrial Research (India)
- Department of Science and Technology (India)
- Science and Engineering Research Board (SERB)
- Ministry of Human Resource Development (India)
- Ministerio de EconomÃa y Competitividad (MINECO)
- Vicepresidència i Conselleria d'Innovació Recerca i Turisme
- National Science Centre (Poland)
- European Commission
- Royal Society
- Scottish Funding Council
- Scottish Universities Physics Alliance
- Hungarian Scientific Research Fund (OTKA)
- Lyon Institute of Origins (LIO)
- National Research Foundation of Korea
- Industry Canada
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Canadian Institute for Advanced Research (CIFAR)
- Ministério da Ciência, Tecnologia, Inovação e Comunicação
- Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
- Russian Foundation for Basic Research
- Leverhulme Trust
- Research Corporation
- Ministry of Science and Technology (Taipei)
- Kavli Foundation
- Conselleria d'Educació i Universitat of the Govern de les Illes Balears
- Ontario Ministry of Research and Innovation
- Created
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2017-04-13Created from EPrint's datestamp field
- Updated
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2023-06-01Created from EPrint's last_modified field
- Caltech groups
- LIGO