Measurement of the Higgs boson mass and width using the four-lepton final state in proton-proton collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:m

A measurement of the Higgs boson mass and width via its decay to two <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>Z</a:mi></a:math> bosons is presented. Proton-proton collision data collected by the CMS experiment, corresponding to an integrated luminosity of <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mn>138</c:mn><c:mtext> </c:mtext><c:mtext> </c:mtext><c:msup><c:mi>fb</c:mi><c:mrow><c:mo>−</c:mo><c:mn>1</c:mn></c:mrow></c:msup></c:math> at a center-of-mass energy of 13 TeV, is used. The invariant mass distribution of four leptons in the on-shell Higgs boson decay is used to measure its mass and constrain its width. This yields the most precise single measurement of the Higgs boson mass to date, <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mn>125.04</e:mn><e:mo>±</e:mo><e:mn>0.12</e:mn><e:mtext> </e:mtext><e:mtext> </e:mtext><e:mi>GeV</e:mi></e:math>, and an upper limit on the width <g:math xmlns:g="http://www.w3.org/1998/Math/MathML" display="inline"><g:msub><g:mi mathvariant="normal">Γ</g:mi><g:mi>H</g:mi></g:msub><g:mo>&lt;</g:mo><g:mn>330</g:mn><g:mtext> </g:mtext><g:mtext> </g:mtext><g:mi>MeV</g:mi></g:math> at 95% confidence level. A combination of the on- and off-shell Higgs boson production decaying to four leptons is used to determine the Higgs boson width, assuming that no new virtual particles affect the production, a premise that is tested by adding new heavy particles in the gluon fusion loop model. This result is combined with a previous CMS analysis of the off-shell Higgs boson production with decay to two leptons and two neutrinos, giving a measured Higgs boson width of <j:math xmlns:j="http://www.w3.org/1998/Math/MathML" display="inline"><j:msubsup><j:mn>3.0</j:mn><j:mrow><j:mo>−</j:mo><j:mn>1.5</j:mn></j:mrow><j:mrow><j:mo>+</j:mo><j:mn>2.0</j:mn></j:mrow></j:msubsup><j:mtext> </j:mtext><j:mtext> </j:mtext><j:mi>MeV</j:mi></j:math>, in agreement with the standard model prediction of 4.1 MeV. The strength of the off-shell Higgs boson production is also reported. The scenario of no off-shell Higgs boson production is excluded at a confidence level corresponding to 3.8 standard deviations.

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Physical review. D/Physical review. D.
Published
2025-05-27
DOI
https://doi.org/10.1103/physrevd.111.092014
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6
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Particle physics theoretical and experimental studies
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article
Field-Weighted Citation Impact
11.22

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article

Measurement of the Higgs boson mass and width using the four-lepton final state in proton-proton collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:m

A. Santoro, T. Reis, B. Kailasapathy, M. A. Ciocci et al.
6 citations
Physical review. D/Physical review. D.
Particle physics theoretical and experimental studies
11.22
article

Measurement of the Higgs boson mass and width using the four-lepton final state in proton-proton collisions at <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mi>s</mml:mi></mml:msqrt><mml:mo>=</mml:mo><mml:m

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Joshi, M. Presilla, S. Tekten, A. Garcia-Bellido, G. Milella, A. Reimers, A. Rosowsky, K. Lamichhane, John Paul Chou, Daniil Rastorguev, M. Murray, S. Mishra, Aurora Perego, W. Lustermann, N. Bin Norjoharuddeen, Fakhri Alam Khan, D. R. Claes, I. Dutta, P. Schütze, S. Sánchez Cruz, R. Klanner, A. Grohsjean, Oleg Teryaev, R. Chawla, N. Bacchetta, D. Contardo, A. Dierlamm, A. Escalante Del Valle, Andrea Triossi, C. Savard, Y. Lai, F. De Guio, E. Butz, C. Fangmeier, David Michael Morse, M. Vojinoviç, J. Luo, F. Ivone, S. My, L. Tani, Cesare Cazzaniga, S. Abdullin, C. Reissel, C. Roland, E. Asilar, P. K. Behera, K. T. S. Kallonen, S. Xie, B. Camaiani, J. Vazquez Escobar, D. Vats, H. Sert, I. Laflotte, Vincent J Smith, Andrés Cabrera, S. Wiedenbeck, S. Parolia, J. Park, John Hakala, L. Kreczko, P. Rumerio, C. Madrid, R. Rusack, Matteo Marchegiani, A. Taliercio, J. Guiang, W. Waltenberger, Parker Taittinger Gardner, R. Koppenhöfer, Manoj Saini, Y. Wen, D. Budkouski, G. B. Cerati, J. Reichert, Giorgia Bonomelli, M. Nickel, Olesia Radchenko, S. Wertz, T. Kamon, A. Lintuluoto, Ioanna Papavergou, S. Chenarani, C. Uribe Estrada, Anne-Catherine Le Bihan, H. Bandyopadhyay, D. Konstantinov, D. Liko, M. Senger, J. Marquez, D. Creanza, A. Frankenthal, P. Everaerts, V. Sulimov, M. Mannelli, J. D. Ruiz Alvarez, G. Majumder, B. D’Anzi, Eslam Shokr, R. Clare, S. Perriès, M. Alves Gallo Pereira, M. Bayatmakou, P. Lecoq, C. Lange, J. Berryhill, Andris Potrebko, H. Kim, P. Van Mechelen, A. Macchiolo, Giorgio Pizzati, J. Eysermans, O. Pooth, C. Hill, L. Feld, K. M. Ecklund, Evan Ranken, M. D’Alfonso, Liam Wezenbeek, L. Corcodilos, A. Attikis, Ç. Zorbilmez, G. Salvi, N. Eich, A. Castro, Jennet Elizabeth Dickinson, Lorenzo Bianchini, T. Kwon, E. Auffray, M. Sonawane, Abhishikth Mallampalli, G. Boldrini, J. Fan, K. Damanakis, L. Valencia Palomo, J. Bonilla, S. Diekmann, Monoranjan Guchait, Jia-Ning Song, L. Caminada, C. Freer, J. Gilmore, Z. Wang, Anne Dabrowski, Aaron Bundock, E. 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Rappoccio, A. Zghiche, A. R. Kanuganti, G. Gómez, E. Migliore, A. Bellora, S. Sagir, H. Kirschenmann, P. Petkov, J. Duarte Campderros, S. Mrenna, G. Masetti, E. Meschi, E. Gurpinar Guler, N. Lychkovskaya, S. Donato, R. Castaldi, E. Yigitbasi, K. Christoforou, J. Tao, S. Chatterjee, L. Lista, E. Palencia Cortezón, C. Beirão Da Cruz E Silva, L. Pacher, D. Ciangottini, M. Dubinin, V. Klyukhin, S. Obraztsov, S. Malvezzi, A. Staiano, K. Doroba, M. Cipriani, D. Menasce, M. Savina, M. Diemoz, J. Hollar, P. Sheldon, J. Viinikainen, L. Fiore, A. Cardini, X. Zuo, N. De Filippis, A. Stepennov, A. B. Meyer, M. Reid, G. Da Molin, C. Charlot, A. M. Rossi, D. Roy, S. Chauhan, A. Williams, Yu Zhao, Jun Liu, Z. Lin, A. Ahmad, X. Chen, А. Александров, H. Wang, Sw. Banerjee, S. Banerjee, Chongyun Jiang, P. Verma, Jingqing Zhang, Yuri Andreev, Anna Mascellani, Andre David Tinoco Mendes, M. Zarucki, D. Bisello, Alberto Orso Maria Iorio, T. Mudholkar, Jyothsna Rani Komaragiri, Nikhilesh Venkatasubramanian, L. A. T. Bauerdick, Jose Monroy, K. Kaadze, Horacio Crotte Ledesma, Y. Yao, G. S. F. Stephans
article en
6 citations

Abstract

A measurement of the Higgs boson mass and width via its decay to two <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>Z</a:mi></a:math> bosons is presented. Proton-proton collision data collected by the CMS experiment, corresponding to an integrated luminosity of <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mn>138</c:mn><c:mtext> </c:mtext><c:mtext> </c:mtext><c:msup><c:mi>fb</c:mi><c:mrow><c:mo>−</c:mo><c:mn>1</c:mn></c:mrow></c:msup></c:math> at a center-of-mass energy of 13 TeV, is used. The invariant mass distribution of four leptons in the on-shell Higgs boson decay is used to measure its mass and constrain its width. This yields the most precise single measurement of the Higgs boson mass to date, <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mn>125.04</e:mn><e:mo>±</e:mo><e:mn>0.12</e:mn><e:mtext> </e:mtext><e:mtext> </e:mtext><e:mi>GeV</e:mi></e:math>, and an upper limit on the width <g:math xmlns:g="http://www.w3.org/1998/Math/MathML" display="inline"><g:msub><g:mi mathvariant="normal">Γ</g:mi><g:mi>H</g:mi></g:msub><g:mo>&lt;</g:mo><g:mn>330</g:mn><g:mtext> </g:mtext><g:mtext> </g:mtext><g:mi>MeV</g:mi></g:math> at 95% confidence level. A combination of the on- and off-shell Higgs boson production decaying to four leptons is used to determine the Higgs boson width, assuming that no new virtual particles affect the production, a premise that is tested by adding new heavy particles in the gluon fusion loop model. This result is combined with a previous CMS analysis of the off-shell Higgs boson production with decay to two leptons and two neutrinos, giving a measured Higgs boson width of <j:math xmlns:j="http://www.w3.org/1998/Math/MathML" display="inline"><j:msubsup><j:mn>3.0</j:mn><j:mrow><j:mo>−</j:mo><j:mn>1.5</j:mn></j:mrow><j:mrow><j:mo>+</j:mo><j:mn>2.0</j:mn></j:mrow></j:msubsup><j:mtext> </j:mtext><j:mtext> </j:mtext><j:mi>MeV</j:mi></j:math>, in agreement with the standard model prediction of 4.1 MeV. The strength of the off-shell Higgs boson production is also reported. The scenario of no off-shell Higgs boson production is excluded at a confidence level corresponding to 3.8 standard deviations.

Physical review. D/Physical review. D.Vol. 111(9)
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