Imperial College London
Alternate

Professor Geoffrey Hall FRS

Faculty of Natural Sciences, Department of Physics

Professor of Physics
 
 
 
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Contact

 

+44 (0)20 7594 7800g.hall Website

 
 
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Assistant

 

Ms Paula Brown +44 (0)20 7594 7823

 
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Location

 

511ABlackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Tumasyan:2022:10.1038/s41567-022-01682-0,
author = {Tumasyan, A and Adam, W and Andrejkovic, JW and Bergauer, T and Chatterjee, S and Damanakis, K and Dragicevic, M and Del, Valle AE and Fruhwirth, R and Jeitler, M and Krammer, N and Lechner, L and Liko, D and Mikulec, I and Paulitsch, P and Pitters, FM and Schieck, J and Schofbeck, R and Schwarz, D and Templ, S and Waltenberger, W and Wulz, C-E and Chekhovsky, V and Litomin, A and Makarenko, V and Darwish, MR and De, Wolf EA and Janssen, T and Kello, T and Lelek, A and Sfar, HR and Van, Mechelen P and Van, Putte S and Van, Remortel N and Bols, ES and D'Hondt, J and De, Moor A and Delcourt, M and El, Faham H and Lowette, S and Moortgat, S and Morton, A and Muller, D and Sahasransu, AR and Tavernier, S and Van, Doninck W and Vannerom, D and Beghin, D and Bilin, B and Clerbaux, B and De, Lentdecker G and Favart, L and Kalsi, AK and Lee, K and Mahdavikhorrami, M and Makarenko, I and Paredes, S and Petre, L and Popov, A and Postiau, N and Starling, E and Thomas, L and Vanden, Bemden M and V},
doi = {10.1038/s41567-022-01682-0},
journal = {Nature Physics},
pages = {1329--1334},
title = {Measurement of the Higgs boson width and evidence of its off-shell contributions to ZZ production},
url = {http://dx.doi.org/10.1038/s41567-022-01682-0},
volume = {18},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Since the discovery of the Higgs boson in 2012, detailed studies of its properties have been ongoing. Besides its mass, its width—related to its lifetime—is an important parameter. One way to determine this quantity is to measure its off-shell production, where the Higgs boson mass is far away from its nominal value, and relating it to its on-shell production, where the mass is close to the nominal value. Here we report evidence for such off-shell contributions to the production cross-section of two Z bosons with data from the CMS experiment at the CERN Large Hadron Collider. We constrain the total rate of the off-shell Higgs boson contribution beyond the Z boson pair production threshold, relative to its standard model expectation, to the interval [0.0061, 2.0] at the 95% confidence level. The scenario with no off-shell contribution is excluded at a p-value of 0.0003 (3.6 standard deviations). We measure the width of the Higgs boson as ΓH=3.2+2.4−1.7MeV, in agreement with the standard model expectation of 4.1 MeV. In addition, we set constraints on anomalous Higgs boson couplings to W and Z boson pairs.
AU  - Tumasyan,A
AU  - Adam,W
AU  - Andrejkovic,JW
AU  - Bergauer,T
AU  - Chatterjee,S
AU  - Damanakis,K
AU  - Dragicevic,M
AU  - Del,Valle AE
AU  - Fruhwirth,R
AU  - Jeitler,M
AU  - Krammer,N
AU  - Lechner,L
AU  - Liko,D
AU  - Mikulec,I
AU  - Paulitsch,P
AU  - Pitters,FM
AU  - Schieck,J
AU  - Schofbeck,R
AU  - Schwarz,D
AU  - Templ,S
AU  - Waltenberger,W
AU  - Wulz,C-E
AU  - Chekhovsky,V
AU  - Litomin,A
AU  - Makarenko,V
AU  - Darwish,MR
AU  - De,Wolf EA
AU  - Janssen,T
AU  - Kello,T
AU  - Lelek,A
AU  - Sfar,HR
AU  - Van,Mechelen P
AU  - Van,Putte S
AU  - Van,Remortel N
AU  - Bols,ES
AU  - D'Hondt,J
AU  - De,Moor A
AU  - Delcourt,M
AU  - El,Faham H
AU  - Lowette,S
AU  - Moortgat,S
AU  - Morton,A
AU  - Muller,D
AU  - Sahasransu,AR
AU  - Tavernier,S
AU  - Van,Doninck W
AU  - Vannerom,D
AU  - Beghin,D
AU  - Bilin,B
AU  - Clerbaux,B
AU  - De,Lentdecker G
AU  - Favart,L
AU  - Kalsi,AK
AU  - Lee,K
AU  - Mahdavikhorrami,M
AU  - Makarenko,I
AU  - Paredes,S
AU  - Petre,L
AU  - Popov,A
AU  - Postiau,N
AU  - Starling,E
AU  - Thomas,L
AU  - Vanden,Bemden M
AU  - Vander,Velde C
AU  - Vanlaer,P
AU  - Cornelis,T
AU  - Dobur,D
AU  - Knolle,J
AU  - Lambrecht,L
AU  - Mestdach,G
AU  - Niedziela,M
AU  - Rendon,C
AU  - Roskas,C
AU  - Samalan,A
AU  - Skovpen,K
AU  - Tytgat,M
AU  - Van,den Bossche N
AU  - Vermassen,B
AU  - Wezenbeek,L
AU  - Benecke,A
AU  - Bethani,A
AU  - Bruno,G
AU  - Bury,F
AU  - Caputo,C
AU  - David,P
AU  - Delaere,C
AU  - Donertas,IS
AU  - Giammanco,A
AU  - Jaffel,K
AU  - Jain,S
AU  - Lemaitre,V
AU  - Mondal,K
AU  - Prisciandaro,J
AU  - Taliercio,A
AU  - Teklishyn,M
AU  - Tran,TT
AU  - Vischia,P
AU  - Wertz,S
AU  - Alves,GA
AU  - Hensel,C
AU  - Moraes,A
AU  - Teles,PR
AU  - Alda,Junior WL
AU  - Gallo,Pereira MA
AU  - Ferreira,Filho MB
AU  - Malbouisson,HB
AU  - Carvalho,W
AU  - Chinellato,J
AU  - Da,Costa EM
AU  - Da,Silveira GG
AU  - Damiao,DDJ
AU  - Sousa,VDS
AU  - De,Souza SF
AU  - Herrera,CM
AU  - Amarilo,KM
AU  - Mundim,L
AU  - Nogima,H
AU  - Santoro,A
AU  - Silva,Do Amaral SM
AU  - Sznajder,A
AU  - Thiel,M
AU  - Da,Silva De Araujo FT
AU  - Pereira,AV
AU  - Bernardes,CA
AU  - Calligaris,L
AU  - Fernandez,Perez Tomei TR
AU  - Gregores,EM
AU  - Lemos,DS
AU  - Mercadante,PG
AU  - Novaes,SF
AU  - Padula,SS
AU  - Aleksandrov,A
AU  - Antchev,G
AU  - Hadjiiska,R
AU  - Iaydjiev,P
AU  - Misheva,M
AU  - Rodozov,M
AU  - Shopova,M
AU  - Sultanov,G
AU  - Dimitrov,A
AU  - Ivanov,T
AU  - Litov,L
AU  - Pavlov,B
AU  - Petkov,P
AU  - Petrov,A
AU  - Cheng,T
AU  - Javaid,T
AU  - Mittal,M
AU  - Wang,H
AU  - Yuan,L
AU  - Ahmad,M
AU  - Bauer,G
AU  - Dozen,C
AU  - Hu,Z
AU  - Martins,J
AU  - Wang,Y
AU  - Yi,K
AU  - Chapon,E
AU  - Chen,GM
AU  - Chen,HS
AU  - Chen,M
AU  - Iemmi,F
AU  - Kapoor,A
AU  - Leggat,D
AU  - Liao,H
AU  - Liu,Z-A
AU  - Milosevic,V
AU  - Monti,F
AU  - Sharma,R
AU  - Tao,J
AU  - Thomas-Wilsker,J
AU  - Wang,J
AU  - Zh
DO  - 10.1038/s41567-022-01682-0
EP  - 1334
PY  - 2022///
SN  - 1745-2473
SP  - 1329
TI  - Measurement of the Higgs boson width and evidence of its off-shell contributions to ZZ production
T2  - Nature Physics
UR  - http://dx.doi.org/10.1038/s41567-022-01682-0
UR  - https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000870649900005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.nature.com/articles/s41567-022-01682-0
UR  - http://hdl.handle.net/10044/1/100568
VL  - 18
ER  -
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