Searches for the neutral Higgs bosons of the MSSM in e +e − collisions at centre-of-mass energies of 181–184 GeV
The data collected by ALEPH at LEP at centre-of-mass energies ranging from 181 to 184 GeV, corresponding to an integrated luminosity of 57 pb −1, are analysed to search for pair-produced neutral Higgs bosons h and A, in the b b ̄ b b ̄ and τ + τ − b b ̄ final states. Two events are found in the data...
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| Veröffentlicht in: | Physics letters. B 1998, Vol.440 (3), p.419-434 |
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| creator | Lucotte, A. Martin, F. Casado, M.P. Crespo, J.M. Fernandez, E. Graugès, E. Merino, G. Sanchez, F. Iaselli, G. Nuzzo, S. Raso, G. Huang, X. Xue, S. Zhang, L. Cattaneo, M. Cerutti, F. Dissertori, G. Frank, M. Halley, A.W. Mato, P. Minten, A. Schmitt, M. Tomalin, I.R. Badaud, F. Dessagne, S. Falvard, A. Michel, B. Montret, J-C. Perret, P. Hansen, J.R. Hansen, P.H. Markou, C. Vayaki, A. Blondel, A. Brient, J.-C. Rougé, A. Focardi, E. Parrini, G. Bologna, G. Capon, G. Murtas, G.P. Lynch, J.G. O'Shea, V. Geweniger, C. Hansper, G. Hepp, V. Tittel, K. Binnie, D.M. Girone, M. Williams, M.D. Ghete, V.M. Kneringer, E. Bowdery, C.K. Finch, A.J. Foster, F. van Gemmeren, P. Giehl, I. Bonissent, A. Ealet, A. Tilquin, A. Aleppo, M. Ragusa, F. Berlich, R. Dietl, H. Ganis, G. Lütjens, G. Männer, W. Chen, S. Jacholkowska, A. Kado, M. Videau, I. de Vivie de Régie, J.-B. Bagliesi, G. Ferrante, I. Giassi, A. Rizzo, G. Verdini, P.G. Blair, G.A. Chambers, J.T. Coles, J. Cowan, G. Green, M.G. Botterill, D.R. Clifft, R.W. Norton, P.R. Thompson, J.C. Lemaire, M.-C. Przysiezniak, H. Vallage, B. Kim, H.Y. Cartwright, S. Lehto, M. Affholderbach, K. Grupen, C. Elmer, P. Gao, Y. Hu, H. McNamara III, P.A. Nielsen, J. Scott, I.J. |
| description | The data collected by ALEPH at LEP at centre-of-mass energies ranging from 181 to 184 GeV, corresponding to an integrated luminosity of 57 pb
−1, are analysed to search for pair-produced neutral Higgs bosons h and A, in the
b
b
̄
b
b
̄
and
τ
+
τ
−
b
b
̄
final states. Two events are found in the data with 2.5 expected from standard model processes. When combined with the lower energy data collected by ALEPH and with earlier reported searches for associated hZ production, these analyses are interpreted in the context of the minimal supersymmetric extension of the standard model (MSSM). For standard choices of MSSM parameter sets, this combination results in 95% C.L. exclusion lower limits of 72.2 and 76.1 GeV/
c
2 for
m
h and
m
A, irrespective of tan
β. A scan of the MSSM parameter space is performed in which the model parameters are varied over wide ranges. For low values of tan
β, i.e., for
1<
tanβ≲
2
, the limit on
m
h of ∼88 GeV/
c
2 is shown to be robust, being satisfied in essentially all of the physically allowed domain. |
| doi_str_mv | 10.1016/S0370-2693(98)01240-4 |
| format | Article |
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−1, are analysed to search for pair-produced neutral Higgs bosons h and A, in the
b
b
̄
b
b
̄
and
τ
+
τ
−
b
b
̄
final states. Two events are found in the data with 2.5 expected from standard model processes. When combined with the lower energy data collected by ALEPH and with earlier reported searches for associated hZ production, these analyses are interpreted in the context of the minimal supersymmetric extension of the standard model (MSSM). For standard choices of MSSM parameter sets, this combination results in 95% C.L. exclusion lower limits of 72.2 and 76.1 GeV/
c
2 for
m
h and
m
A, irrespective of tan
β. A scan of the MSSM parameter space is performed in which the model parameters are varied over wide ranges. For low values of tan
β, i.e., for
1<
tanβ≲
2
, the limit on
m
h of ∼88 GeV/
c
2 is shown to be robust, being satisfied in essentially all of the physically allowed domain.</description><identifier>ISSN: 0370-2693</identifier><identifier>EISSN: 1873-2445</identifier><identifier>DOI: 10.1016/S0370-2693(98)01240-4</identifier><language>eng</language><publisher>Elsevier B.V</publisher><ispartof>Physics letters. B, 1998, Vol.440 (3), p.419-434</ispartof><rights>1998 Elsevier Science B.V.</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c357t-1f5410ca25a1edc5a8ae68adcf85d08a7f7334766091da0f005901c5e7e169a83</citedby><cites>FETCH-LOGICAL-c357t-1f5410ca25a1edc5a8ae68adcf85d08a7f7334766091da0f005901c5e7e169a83</cites><orcidid>0000-0001-7292-9271 ; 0000-0002-7047-6042 ; 0000-0002-1297-8925 ; 0000-0002-5732-4343 ; 0000-0002-9963-8359 ; 0000-0002-9468-4751 ; 0000-0003-3332-2615 ; 0000-0002-9930-9299 ; 0000-0002-8859-5453 ; 0000-0002-2589-240X ; 0000-0001-6567-3036 ; 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I.J.</creatorcontrib><creatorcontrib>ALEPH Collaboration</creatorcontrib><title>Searches for the neutral Higgs bosons of the MSSM in e +e − collisions at centre-of-mass energies of 181–184 GeV</title><title>Physics letters. B</title><description>The data collected by ALEPH at LEP at centre-of-mass energies ranging from 181 to 184 GeV, corresponding to an integrated luminosity of 57 pb
−1, are analysed to search for pair-produced neutral Higgs bosons h and A, in the
b
b
̄
b
b
̄
and
τ
+
τ
−
b
b
̄
final states. Two events are found in the data with 2.5 expected from standard model processes. When combined with the lower energy data collected by ALEPH and with earlier reported searches for associated hZ production, these analyses are interpreted in the context of the minimal supersymmetric extension of the standard model (MSSM). For standard choices of MSSM parameter sets, this combination results in 95% C.L. exclusion lower limits of 72.2 and 76.1 GeV/
c
2 for
m
h and
m
A, irrespective of tan
β. A scan of the MSSM parameter space is performed in which the model parameters are varied over wide ranges. For low values of tan
β, i.e., for
1<
tanβ≲
2
, the limit on
m
h of ∼88 GeV/
c
2 is shown to be robust, being satisfied in essentially all of the physically allowed domain.</description><issn>0370-2693</issn><issn>1873-2445</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LAzEQhoMoWD9-gpCjIqszu5vd7EmKaCu0eKh6DTE7aSPbTUlWwZtHz_oP-0vsh3h1LnOY531hHsZOEC4QsLicQFZCkhZVdlrJM8A0hyTfYT2UZZakeS52We8P2WcHMb4AAAooeqybkA5mRpFbH3g3I97Saxd0w4duOo382UffRu7t5jaeTMbctZz4OfHl5xc3vmlcdGtEd9xQ2wVKvE3mOkZOLYWpo00aJS4_vlHmfEBPR2zP6ibS8e8-ZI-3Nw_Xw2R0P7i77o8Sk4myS9CKHMHoVGik2ggtNRVS18ZKUYPUpS2zLC-LAiqsNVgAUQEaQSVhUWmZHbLzbe9MN2oR3FyHd-W1U8P-SLk2XWQK1oNV-oYrWmxpE3yMgexfBEGtRauNaLW2qCqpNqJVvspdbXO0euXNUVDROGoN1S6Q6VTt3T8NP3G7hCk</recordid><startdate>1998</startdate><enddate>1998</enddate><creator>Lucotte, A.</creator><creator>Martin, F.</creator><creator>Casado, M.P.</creator><creator>Crespo, J.M.</creator><creator>Fernandez, E.</creator><creator>Graugès, E.</creator><creator>Merino, 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B.V</general><general>Elsevier</general><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0001-7292-9271</orcidid><orcidid>https://orcid.org/0000-0002-7047-6042</orcidid><orcidid>https://orcid.org/0000-0002-1297-8925</orcidid><orcidid>https://orcid.org/0000-0002-5732-4343</orcidid><orcidid>https://orcid.org/0000-0002-9963-8359</orcidid><orcidid>https://orcid.org/0000-0002-9468-4751</orcidid><orcidid>https://orcid.org/0000-0003-3332-2615</orcidid><orcidid>https://orcid.org/0000-0002-9930-9299</orcidid><orcidid>https://orcid.org/0000-0002-8859-5453</orcidid><orcidid>https://orcid.org/0000-0002-2589-240X</orcidid><orcidid>https://orcid.org/0000-0001-6567-3036</orcidid><orcidid>https://orcid.org/0000-0002-9495-9145</orcidid></search><sort><creationdate>1998</creationdate><title>Searches for the neutral Higgs bosons of the MSSM in e +e − collisions at centre-of-mass energies of 181–184 GeV</title><author>Lucotte, A. ; Martin, F. ; Casado, M.P. ; Crespo, J.M. ; Fernandez, E. ; Graugès, E. ; Merino, G. ; Sanchez, F. ; Iaselli, G. ; Nuzzo, S. ; Raso, G. ; Huang, X. ; Xue, S. ; Zhang, L. ; Cattaneo, M. ; Cerutti, F. ; Dissertori, G. ; Frank, M. ; Halley, A.W. ; Mato, P. ; Minten, A. ; Schmitt, M. ; Tomalin, I.R. ; Badaud, F. ; Dessagne, S. ; Falvard, A. ; Michel, B. ; Montret, J-C. ; Perret, P. ; Hansen, J.R. ; Hansen, P.H. ; Markou, C. ; Vayaki, A. ; Blondel, A. ; Brient, J.-C. ; Rougé, A. ; Focardi, E. ; Parrini, G. ; Bologna, G. ; Capon, G. ; Murtas, G.P. ; Lynch, J.G. ; O'Shea, V. ; Geweniger, C. ; Hansper, G. ; Hepp, V. ; Tittel, K. ; Binnie, D.M. ; Girone, M. ; Williams, M.D. ; Ghete, V.M. ; Kneringer, E. ; Bowdery, C.K. ; Finch, A.J. ; Foster, F. ; van Gemmeren, P. ; Giehl, I. ; Bonissent, A. ; Ealet, A. ; Tilquin, A. ; Aleppo, M. ; Ragusa, F. ; Berlich, R. ; Dietl, H. ; Ganis, G. ; Lütjens, G. ; Männer, W. ; Chen, S. ; Jacholkowska, A. ; Kado, M. ; Videau, I. ; de Vivie de Régie, J.-B. ; Bagliesi, G. ; Ferrante, I. ; Giassi, A. ; Rizzo, G. ; Verdini, P.G. ; Blair, G.A. ; Chambers, J.T. ; Coles, J. ; Cowan, G. ; Green, M.G. ; Botterill, D.R. ; Clifft, R.W. ; Norton, P.R. ; Thompson, J.C. ; Lemaire, M.-C. ; Przysiezniak, H. ; Vallage, B. ; Kim, H.Y. ; Cartwright, S. ; Lehto, M. ; Affholderbach, K. ; Grupen, C. ; Elmer, P. ; Gao, Y. ; Hu, H. ; McNamara III, P.A. ; Nielsen, J. ; Scott, I.J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c357t-1f5410ca25a1edc5a8ae68adcf85d08a7f7334766091da0f005901c5e7e169a83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lucotte, A.</creatorcontrib><creatorcontrib>Martin, F.</creatorcontrib><creatorcontrib>Casado, M.P.</creatorcontrib><creatorcontrib>Crespo, J.M.</creatorcontrib><creatorcontrib>Fernandez, E.</creatorcontrib><creatorcontrib>Graugès, E.</creatorcontrib><creatorcontrib>Merino, G.</creatorcontrib><creatorcontrib>Sanchez, F.</creatorcontrib><creatorcontrib>Iaselli, G.</creatorcontrib><creatorcontrib>Nuzzo, S.</creatorcontrib><creatorcontrib>Raso, G.</creatorcontrib><creatorcontrib>Huang, X.</creatorcontrib><creatorcontrib>Xue, S.</creatorcontrib><creatorcontrib>Zhang, L.</creatorcontrib><creatorcontrib>Cattaneo, M.</creatorcontrib><creatorcontrib>Cerutti, F.</creatorcontrib><creatorcontrib>Dissertori, G.</creatorcontrib><creatorcontrib>Frank, M.</creatorcontrib><creatorcontrib>Halley, A.W.</creatorcontrib><creatorcontrib>Mato, P.</creatorcontrib><creatorcontrib>Minten, A.</creatorcontrib><creatorcontrib>Schmitt, M.</creatorcontrib><creatorcontrib>Tomalin, I.R.</creatorcontrib><creatorcontrib>Badaud, F.</creatorcontrib><creatorcontrib>Dessagne, S.</creatorcontrib><creatorcontrib>Falvard, A.</creatorcontrib><creatorcontrib>Michel, B.</creatorcontrib><creatorcontrib>Montret, J-C.</creatorcontrib><creatorcontrib>Perret, 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V.M.</creatorcontrib><creatorcontrib>Kneringer, E.</creatorcontrib><creatorcontrib>Bowdery, C.K.</creatorcontrib><creatorcontrib>Finch, A.J.</creatorcontrib><creatorcontrib>Foster, F.</creatorcontrib><creatorcontrib>van Gemmeren, P.</creatorcontrib><creatorcontrib>Giehl, I.</creatorcontrib><creatorcontrib>Bonissent, A.</creatorcontrib><creatorcontrib>Ealet, A.</creatorcontrib><creatorcontrib>Tilquin, A.</creatorcontrib><creatorcontrib>Aleppo, M.</creatorcontrib><creatorcontrib>Ragusa, F.</creatorcontrib><creatorcontrib>Berlich, R.</creatorcontrib><creatorcontrib>Dietl, H.</creatorcontrib><creatorcontrib>Ganis, G.</creatorcontrib><creatorcontrib>Lütjens, G.</creatorcontrib><creatorcontrib>Männer, W.</creatorcontrib><creatorcontrib>Chen, S.</creatorcontrib><creatorcontrib>Jacholkowska, A.</creatorcontrib><creatorcontrib>Kado, M.</creatorcontrib><creatorcontrib>Videau, I.</creatorcontrib><creatorcontrib>de Vivie de Régie, J.-B.</creatorcontrib><creatorcontrib>Bagliesi, G.</creatorcontrib><creatorcontrib>Ferrante, I.</creatorcontrib><creatorcontrib>Giassi, A.</creatorcontrib><creatorcontrib>Rizzo, G.</creatorcontrib><creatorcontrib>Verdini, P.G.</creatorcontrib><creatorcontrib>Blair, G.A.</creatorcontrib><creatorcontrib>Chambers, J.T.</creatorcontrib><creatorcontrib>Coles, J.</creatorcontrib><creatorcontrib>Cowan, G.</creatorcontrib><creatorcontrib>Green, M.G.</creatorcontrib><creatorcontrib>Botterill, D.R.</creatorcontrib><creatorcontrib>Clifft, R.W.</creatorcontrib><creatorcontrib>Norton, P.R.</creatorcontrib><creatorcontrib>Thompson, J.C.</creatorcontrib><creatorcontrib>Lemaire, M.-C.</creatorcontrib><creatorcontrib>Przysiezniak, H.</creatorcontrib><creatorcontrib>Vallage, B.</creatorcontrib><creatorcontrib>Kim, H.Y.</creatorcontrib><creatorcontrib>Cartwright, S.</creatorcontrib><creatorcontrib>Lehto, M.</creatorcontrib><creatorcontrib>Affholderbach, K.</creatorcontrib><creatorcontrib>Grupen, C.</creatorcontrib><creatorcontrib>Elmer, P.</creatorcontrib><creatorcontrib>Gao, Y.</creatorcontrib><creatorcontrib>Hu, H.</creatorcontrib><creatorcontrib>McNamara III, P.A.</creatorcontrib><creatorcontrib>Nielsen, J.</creatorcontrib><creatorcontrib>Scott, I.J.</creatorcontrib><creatorcontrib>ALEPH Collaboration</creatorcontrib><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Physics letters. B</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lucotte, A.</au><au>Martin, F.</au><au>Casado, M.P.</au><au>Crespo, J.M.</au><au>Fernandez, E.</au><au>Graugès, E.</au><au>Merino, G.</au><au>Sanchez, F.</au><au>Iaselli, G.</au><au>Nuzzo, S.</au><au>Raso, G.</au><au>Huang, X.</au><au>Xue, S.</au><au>Zhang, L.</au><au>Cattaneo, M.</au><au>Cerutti, F.</au><au>Dissertori, G.</au><au>Frank, M.</au><au>Halley, A.W.</au><au>Mato, P.</au><au>Minten, A.</au><au>Schmitt, M.</au><au>Tomalin, I.R.</au><au>Badaud, F.</au><au>Dessagne, S.</au><au>Falvard, A.</au><au>Michel, B.</au><au>Montret, J-C.</au><au>Perret, P.</au><au>Hansen, J.R.</au><au>Hansen, P.H.</au><au>Markou, C.</au><au>Vayaki, A.</au><au>Blondel, A.</au><au>Brient, J.-C.</au><au>Rougé, A.</au><au>Focardi, E.</au><au>Parrini, G.</au><au>Bologna, G.</au><au>Capon, G.</au><au>Murtas, G.P.</au><au>Lynch, J.G.</au><au>O'Shea, V.</au><au>Geweniger, C.</au><au>Hansper, G.</au><au>Hepp, V.</au><au>Tittel, K.</au><au>Binnie, D.M.</au><au>Girone, M.</au><au>Williams, M.D.</au><au>Ghete, V.M.</au><au>Kneringer, E.</au><au>Bowdery, C.K.</au><au>Finch, A.J.</au><au>Foster, F.</au><au>van Gemmeren, P.</au><au>Giehl, I.</au><au>Bonissent, A.</au><au>Ealet, A.</au><au>Tilquin, A.</au><au>Aleppo, M.</au><au>Ragusa, F.</au><au>Berlich, R.</au><au>Dietl, H.</au><au>Ganis, G.</au><au>Lütjens, G.</au><au>Männer, W.</au><au>Chen, S.</au><au>Jacholkowska, A.</au><au>Kado, M.</au><au>Videau, I.</au><au>de Vivie de Régie, J.-B.</au><au>Bagliesi, G.</au><au>Ferrante, I.</au><au>Giassi, A.</au><au>Rizzo, G.</au><au>Verdini, P.G.</au><au>Blair, G.A.</au><au>Chambers, J.T.</au><au>Coles, J.</au><au>Cowan, G.</au><au>Green, M.G.</au><au>Botterill, D.R.</au><au>Clifft, R.W.</au><au>Norton, P.R.</au><au>Thompson, J.C.</au><au>Lemaire, M.-C.</au><au>Przysiezniak, H.</au><au>Vallage, B.</au><au>Kim, H.Y.</au><au>Cartwright, S.</au><au>Lehto, M.</au><au>Affholderbach, K.</au><au>Grupen, C.</au><au>Elmer, P.</au><au>Gao, Y.</au><au>Hu, H.</au><au>McNamara III, P.A.</au><au>Nielsen, J.</au><au>Scott, I.J.</au><aucorp>ALEPH Collaboration</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Searches for the neutral Higgs bosons of the MSSM in e +e − collisions at centre-of-mass energies of 181–184 GeV</atitle><jtitle>Physics letters. B</jtitle><date>1998</date><risdate>1998</risdate><volume>440</volume><issue>3</issue><spage>419</spage><epage>434</epage><pages>419-434</pages><issn>0370-2693</issn><eissn>1873-2445</eissn><abstract>The data collected by ALEPH at LEP at centre-of-mass energies ranging from 181 to 184 GeV, corresponding to an integrated luminosity of 57 pb
−1, are analysed to search for pair-produced neutral Higgs bosons h and A, in the
b
b
̄
b
b
̄
and
τ
+
τ
−
b
b
̄
final states. Two events are found in the data with 2.5 expected from standard model processes. When combined with the lower energy data collected by ALEPH and with earlier reported searches for associated hZ production, these analyses are interpreted in the context of the minimal supersymmetric extension of the standard model (MSSM). For standard choices of MSSM parameter sets, this combination results in 95% C.L. exclusion lower limits of 72.2 and 76.1 GeV/
c
2 for
m
h and
m
A, irrespective of tan
β. A scan of the MSSM parameter space is performed in which the model parameters are varied over wide ranges. For low values of tan
β, i.e., for
1<
tanβ≲
2
, the limit on
m
h of ∼88 GeV/
c
2 is shown to be robust, being satisfied in essentially all of the physically allowed domain.</abstract><pub>Elsevier B.V</pub><doi>10.1016/S0370-2693(98)01240-4</doi><tpages>16</tpages><orcidid>https://orcid.org/0000-0001-7292-9271</orcidid><orcidid>https://orcid.org/0000-0002-7047-6042</orcidid><orcidid>https://orcid.org/0000-0002-1297-8925</orcidid><orcidid>https://orcid.org/0000-0002-5732-4343</orcidid><orcidid>https://orcid.org/0000-0002-9963-8359</orcidid><orcidid>https://orcid.org/0000-0002-9468-4751</orcidid><orcidid>https://orcid.org/0000-0003-3332-2615</orcidid><orcidid>https://orcid.org/0000-0002-9930-9299</orcidid><orcidid>https://orcid.org/0000-0002-8859-5453</orcidid><orcidid>https://orcid.org/0000-0002-2589-240X</orcidid><orcidid>https://orcid.org/0000-0001-6567-3036</orcidid><orcidid>https://orcid.org/0000-0002-9495-9145</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0370-2693 |
| ispartof | Physics letters. B, 1998, Vol.440 (3), p.419-434 |
| issn | 0370-2693 1873-2445 |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_in2p3_00000192v1 |
| source | ScienceDirect Journals (5 years ago - present) |
| title | Searches for the neutral Higgs bosons of the MSSM in e +e − collisions at centre-of-mass energies of 181–184 GeV |
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