Skip to main content

Research Repository

Advanced Search

Determination of the strong coupling constant αs(mZ) in next-to-next-to-leading order QCD using H1 jet cross section measurements

Andreev, V.; Baghdasaryan, A.; Begzsuren, K.; Belousov, A.; Bertone, V.; Bolz, A.; Boudry, V.; Brandt, G.; Brisson, V.; Britzger, D.; Buniatyan, A.; Bylinkin, A.; Bystritskaya, L.; Campbell, A.J.; Cantun Avila, K.B.; Cerny, K.; Chekelian, V.; Contreras, J.G.; Cvach, J.; Currie, J.; Dainton, J.B.; Daum, K.; Diaconu, C.; Dobre, M.; Dodonov, V.; Eckerlin, G.; Egli, S.; Elsen, E.; Favart, L.; Fedotov, A.; Feltesse, J.; Fleischer, M.; Fomenko, A.; Gabathuler, E.; Gayler, J.; Gehrmann, T.; Ghazaryan, S.; Goerlich, L.; Gogitidze, N.; Gouzevitch, M.; Grab, C.; Grebenyuk, A.; Greenshaw, T.; Grindhammer, G.; Gwenlan, C.; Haidt, D.; Henderson, R.C.W.; Hladkỳ, J.; Hoffmann, D.; Horisberger, R.; Hreus, T.; Huber, F.; Huss, A.; Jacquet, M.; Janssen, X.; Jung, A.W.; Jung, H.; Kapichine, M.; Katzy, J.; Kiesling, C.; Klein, M.; Kleinwort, C.; Kogler, R.; Kostka, P.; Kretzschmar, J.; Krücker, D.; Krüger, K.; Landon, M.P.J.; Lange, W.; Laycock, P.; Lebedev, A.; Levonian, S.; Lipka, K.; List, B.; List, J....

Determination of the strong coupling constant αs(mZ) in next-to-next-to-leading order QCD using H1 jet cross section measurements Thumbnail


Authors

V. Andreev

A. Baghdasaryan

K. Begzsuren

A. Belousov

V. Bertone

A. Bolz

V. Boudry

G. Brandt

V. Brisson

D. Britzger

A. Buniatyan

A. Bylinkin

L. Bystritskaya

A.J. Campbell

K.B. Cantun Avila

K. Cerny

V. Chekelian

J.G. Contreras

J. Cvach

J. Currie

J.B. Dainton

K. Daum

C. Diaconu

M. Dobre

V. Dodonov

G. Eckerlin

S. Egli

E. Elsen

L. Favart

A. Fedotov

J. Feltesse

M. Fleischer

A. Fomenko

E. Gabathuler

J. Gayler

T. Gehrmann

S. Ghazaryan

L. Goerlich

N. Gogitidze

M. Gouzevitch

C. Grab

A. Grebenyuk

T. Greenshaw

G. Grindhammer

C. Gwenlan

D. Haidt

R.C.W. Henderson

J. Hladkỳ

D. Hoffmann

R. Horisberger

T. Hreus

F. Huber

A. Huss

M. Jacquet

X. Janssen

A.W. Jung

H. Jung

M. Kapichine

J. Katzy

C. Kiesling

M. Klein

C. Kleinwort

R. Kogler

P. Kostka

J. Kretzschmar

D. Krücker

K. Krüger

M.P.J. Landon

W. Lange

P. Laycock

A. Lebedev

S. Levonian

K. Lipka

B. List

J. List

B. Lobodzinski

E. Malinovski

H.-U. Martyn

S.J. Maxfield

A. Mehta

A.B. Meyer

H. Meyer

J. Meyer

S. Mikocki

A. Morozov

K. Müller

Th Naumann

P.R. Newman

C. Niebuhr

J. Niehues

G. Nowak

J.E. Olsson

D. Ozerov

C. Pascaud

G.D. Patel

E. Perez

A. Petrukhin

I. Picuric

H. Pirumov

D. Pitzl

R. Plačakytė

R. Polifka

K. Rabbertz

V. Radescu

N. Raicevic

T. Ravdandorj

P. Reimer

E. Rizvi

P. Robmann

R. Roosen

A. Rostovtsev

M. Rotaru

D. Šálek

D.P.C. Sankey

M. Sauter

E. Sauvan

S. Schmitt

L. Schoeffel

A. Schöning

F. Sefkow

S. Shushkevich

Y. Soloviev

P. Sopicki

D. South

V. Spaskov

A. Specka

M. Steder

B. Stella

U. Straumann

M.R. Sutton

T. Sykora

P.D. Thompson

D. Traynor

P. Truöl

I. Tsakov

B. Tseepeldorj

A. Valkárová

C. Vallée

P. Van Mechelen

Y. Vazdik

D. Wegener

E. Wünsch

J. Žáček

Z. Zhang

R. Žlebčík

H. Zohrabyan

F. Zomer



Abstract

The strong coupling constant αsαs is determined from inclusive jet and dijet cross sections in neutral-current deep-inelastic ep scattering (DIS) measured at HERA by the H1 collaboration using next-to-next-to-leading order (NNLO) QCD predictions. The dependence of the NNLO predictions and of the resulting value of αs(mZ)αs(mZ) at the Z-boson mass mZmZ are studied as a function of the choice of the renormalisation and factorisation scales. Using inclusive jet and dijet data together, the strong coupling constant is determined to be αs(mZ)=0.1157(20)exp(29)thαs(mZ)=0.1157(20)exp(29)th . Complementary, αs(mZ)αs(mZ) is determined together with parton distribution functions of the proton (PDFs) from jet and inclusive DIS data measured by the H1 experiment. The value αs(mZ)=0.1142(28)totαs(mZ)=0.1142(28)tot obtained is consistent with the determination from jet data alone. The impact of the jet data on the PDFs is studied. The running of the strong coupling is tested at different values of the renormalisation scale and the results are found to be in agreement with expectations.

Citation

Andreev, V., Baghdasaryan, A., Begzsuren, K., Belousov, A., Bertone, V., Bolz, A., …Zomer, F. (2017). Determination of the strong coupling constant αs(mZ) in next-to-next-to-leading order QCD using H1 jet cross section measurements. The European Physical Journal C, 77(11), Article 791. https://doi.org/10.1140/epjc/s10052-017-5314-7

Journal Article Type Article
Acceptance Date Oct 12, 2017
Online Publication Date Nov 22, 2017
Publication Date Nov 22, 2017
Deposit Date Dec 13, 2017
Publicly Available Date Dec 13, 2017
Journal European Physical Journal C: Particles and Fields
Print ISSN 1434-6044
Electronic ISSN 1434-6052
Publisher SpringerOpen
Peer Reviewed Peer Reviewed
Volume 77
Issue 11
Article Number 791
DOI https://doi.org/10.1140/epjc/s10052-017-5314-7
Public URL https://durham-repository.worktribe.com/output/1338087

Files






You might also like



Downloadable Citations