Journal articles
Measurement of the mass difference between top quark and antiquark in pp collisions at sqrt(s) = 8 TeV
S. Chatrchyan
M. Besançon
1
F. Couderc
1
M. Dejardin
1
D. Denegri
1
B. Fabbro
1
J.L. Faure
1
F. Ferri
1
S. Ganjour
1
A. Givernaud
1
P. Gras
1
G. Hamel De Monchenault
1
P. Jarry
1
E. Locci
1
J. Malcles
1
A. Nayak
1
J. Rander
1
A. Rosowsky
1
M. Titov
1
S. Baffioni
2
F. Beaudette
2
P. Busson
2
C. Charlot
2
N. Daci
2
T. Dahms
2
M. Dalchenko
2
L. Dobrzynski
2
A. Florent
2
R. Granier De Cassagnac
2
M. Haguenauer
2
P. Miné
2
C. Mironov
2
I.N. Naranjo
2
M. Nguyen
2
C. Ochando
2
P. Paganini
2
D. Sabes
2
R. Salerno
2
Y. Sirois
2
C. Veelken
2
Y. Yilmaz
2
A. Zabi
2
J.-L. Agram
3
J. Andrea
3
D. Bloch
3
J.-M. Brom
3
E.C. Chabert
3
C. Collard
3
E. Conte
3
F. Drouhin
3
J.-C. Fontaine
3
D. Gelé
3
U. Goerlach
3
C. Goetzmann
3
P. Juillot
3
A.-C. Le Bihan
3
P. Van Hove
3
S. Gadrat
4
S. Beauceron
5
N. Beaupere
5
G. Boudoul
5
S. Brochet
5
J. Chasserat
5
R. Chierici
5
D. Contardo
5
P. Depasse
5
H. El Mamouni
5
J. Fan
5
J. Fay
5
S. Gascon
5
M. Gouzevitch
5
B. Ille
5
T. Kurca
5
M. Lethuillier
5
L. Mirabito
5
S. Perries
5
J.D. Ruiz Alvarez
5
L. Sgandurra
5
V. Sordini
5
M. Vander Donckt
5
P. Verdier
5
S. Viret
5
H. Xiao
5
J. Rander 1
Author
A. Rosowsky 1
Author
M. Titov 1
Author
S. Baffioni 2
Author IdHAL : stephanie-barrillon ORCID : https://orcid.org/0000-0002-7075-1673
R. Granier De Cassagnac 2
Author IdHAL : raphgrandecass arXiv : https://arxiv.org/a/rgdc ORCID : https://orcid.org/0000-0002-1275-7292
M. Haguenauer 2
Author
P. Miné 2
Author
C. Mironov 2
Author
I.N. Naranjo 2
Author
M. Nguyen 2
Author
C. Ochando 2
Author
P. Paganini 2
Author IdHAL : pascal-paganini ORCID : https://orcid.org/0000-0001-9580-683X
T. Kurca 5
Author
M. Lethuillier 5
Author IdHAL : morgan-lethuillier ORCID : https://orcid.org/0000-0001-6185-2045
L. Mirabito 5
Author
S. Perries 5
Author
J.D. Ruiz Alvarez 5
Author
L. Sgandurra 5
Author
V. Sordini 5
Author IdHAL : viola-sordini ORCID : https://orcid.org/0000-0003-0885-824X
M. Vander Donckt 5
Author
1
IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers (CEA Saclay
F-91191 Gif sur Yvette cedex - France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DRF/IRFU (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
- Université Paris-Saclay (Espace Technologique, Bat. Discovery - RD 128 - 2e ét., 91190 Saint-Aubin - France)
2
LLR - Laboratoire Leprince-Ringuet (Route de Saclay - 91128 Palaiseau Cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- X - École polytechnique (École polytechnique, 91128 Palaiseau Cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7638 (France)
3
DRS-IPHC - Département Recherches Subatomiques (23 rue du Loess - BP28 67037 Strasbourg cedex 2 - France)
- IPHC - Institut Pluridisciplinaire Hubert Curien (23 rue Loess - BP 28 67037 Strasbourg Cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- UNISTRA - Université de Strasbourg (4 rue Blaise Pascal - CS 90032 - 67081 Strasbourg cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7178 (France)
4
CC-IN2P3 - Centre de Calcul de l'IN2P3 (Domaine scientifique de La Doua
43 bd du 11 Novembre 1918
69622 Villeurbanne Cedex - France)
5
IPNL - Institut de Physique Nucléaire de Lyon (Campus LyonTech-la Doua
Bâtiment Paul DIRAC
4 Rue Enrico Fermi
69622 Villeurbanne Cedex - France)
- UCBL - Université Claude Bernard Lyon 1 (43, boulevard du 11 novembre 1918, 69622 Villeurbanne cedex - France)
- Université de Lyon (92 rue Pasteur - CS 30122, 69361 Lyon Cedex 07 - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR5822 (France)
Abstract : The invariance of the standard model (SM) under the CPT transformation predicts equality of particle and antiparticle masses. This prediction is tested by measuring the mass difference between the top quark and antiquark (Delta m[t] = m[t] - m[t-bar]) that are produced in pp collisions at a center-of-mass energy of 8 TeV, using events with a muon or an electron and at least four jets in the final state. The analysis is based on data corresponding to an integrated luminosity of 19.6 inverse-femtobarns collected by the CMS experiment at the LHC, and yields a value of Delta m[t] = -0.15 +/- 0.19 (stat) +/- 0.09 (syst) GeV, which is consistent with the SM expectation. This result is significantly more precise than previously reported measurements.
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Journal articles
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http://hal.in2p3.fr/in2p3-01391396
Contributor : Dominique Girod <>
Submitted on : Thursday, November 3, 2016 - 11:36:12 AM
Last modification on : Wednesday, November 25, 2020 - 4:10:43 PM
Contributor : Dominique Girod <>
Submitted on : Thursday, November 3, 2016 - 11:36:12 AM
Last modification on : Wednesday, November 25, 2020 - 4:10:43 PM
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- HAL Id : in2p3-01391396, version 1
- ARXIV : 1610.09551
- DOI : 10.1016/j.physletb.2017.04.028
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Citation
S. Chatrchyan, M. Besançon, F. Couderc, M. Dejardin, D. Denegri, et al.. Measurement of the mass difference between top quark and antiquark in pp collisions at sqrt(s) = 8 TeV. Physics Letters B, Elsevier, 2017, 770, pp.50. ⟨10.1016/j.physletb.2017.04.028⟩. ⟨in2p3-01391396⟩
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