Measurement of the inclusive t t ¯ cross section in pp collisions at s = 5.02 TeV using final states with at least one charged lepton

The top quark pair production cross section σtt¯ is measured for the first time in pp collisions at a center-of-mass energy of 5.02 TeV. The data were collected by the CMS experiment at the LHC and correspond to an integrated luminosity of 27.4 pb−1. The measurement is performed by analyzing events...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	The journal of high energy physics 2018-03, Vol.2018 (3), p.1-46
Hauptverfasser:	I Van Parijs, Mertens, A, Huertas Guativa, L M, Courbon, B, Eerola, P, Härkönen, J, Rander, J, Abdulsalam, A, Antropov, I, Stahl Leiton, A G, Chierici, R, Olschewski, M, Pistone, C, Eren, E, Lange, W, Vignali, M Centis, Gonzalez, D, Hinzmann, A, Chwalek, T, Mildner, H, Wolf, R, Saoulidou, N, Pasztor, G, Hajdu, C, Trocsanyi, Z L, Bahinipati, S, Nandan, S, Dutta, D, Mahakud, B, Maity, M, Cristella, L, Guiducci, L, Giordano, F, Ciriolo, V, Ghezzi, A, Pauwels, K, Boletti, A, Mandorli, G, Monteil, E, Ruspa, M, Lim, J, M A B Md Ali, Ahmad, A, Kashunin, I, Murzin, V, Pozdnyakov, I, Popova, E, Kirakosyan, M, Shtol, D, Rekovic, V, Flix, J, Pérez-Calero Yzquierdo, A, Cabrillo, I J, Everaerts, P, Lange, C, Lecoq, P, Bertl, W, Lustermann, W, Canelli, M F, Chen, P H, Demiroglu, Z S, Clement, E, Cockerill, D J A, De Wit, A, Kyberd, P, Band, R, W Ko, Shi, M, Bouvier, E, Holzner, A, Padhi, S, Cumalat, J P, Rinkevicius, A, Canepa, A, Cremonesi, M, Sexton-Kennedy, E, Tkaczyk, S, Vidal, R, Wang, M, Mitselmakher, G, Wang, S, Adams, T, Perry, T, Berry, D, Bowen, J, Maier, B, Wyslouch, B, Alverson, G, Loukas, N, Meng, F, Smith, G, Palmer, C, Z Tu, Zabel, J, Garcia-Bellido, A, Kaplan, S, Pakhotin, Y, Ledovskoy, A, Karchin, P E, Smith, W H
Format:	Artikel
Sprache:	eng
Schlagworte:	Collisions Cross-sections Distribution functions Energy measurement High energy physics Large Hadron Collider Leptons Luminosity Pair production Quarks Solenoids
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The top quark pair production cross section σtt¯ is measured for the first time in pp collisions at a center-of-mass energy of 5.02 TeV. The data were collected by the CMS experiment at the LHC and correspond to an integrated luminosity of 27.4 pb−1. The measurement is performed by analyzing events with at least one charged lepton. The measured cross section is σtt¯ = 69.5 ± 6.1 (stat) ± 5.6 (syst) ± 1.6 (lumi) pb, with a total relative uncertainty of 12%. The result is in agreement with the expectation from the standard model. The impact of the presented measurement on the determination of the gluon distribution function is investigated.
ISSN:	1029-8479
DOI:	10.1007/JHEP03(2018)115