Zobrazeno 1 - 10
of 1 966
pro vyhledávání: '"QUARK MASSES"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-21 (2024)
Abstract We examine the effect of finite top- and bottom-quark masses on the Higgs production cross section in the gluon-gluon fusion channel. We employ both MS ¯ $$ \overline{\textrm{MS}} $$ and on-shell renormalisation for the quark masses and pro
Externí odkaz:
https://doaj.org/article/4fe095edd78e499da58659029758a3b7
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-21 (2024)
Abstract We present a new prescription to account for heavy quark mass effects in the determination of parton distribution functions (PDFs) based on the FONLL scheme. Our prescription makes explicit use of the freedom to choose the number of active f
Externí odkaz:
https://doaj.org/article/7e2d3b5e61874274bfaae64ab97a36c3
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-49 (2024)
Abstract We present a generator for lepton nucleon collisions in the DIS regime, focusing in particular on processes with a massive lepton and/or a massive quark in the final state. We have built a full code matching NLO QCD corrections to parton sho
Externí odkaz:
https://doaj.org/article/7b975a915dc04dceb6f6cef03b1fdce4
Publikováno v:
Particles, Vol 7, Iss 3, Pp 653-682 (2024)
We review and meta-analyze particle data and properties of hadrons with measured rest masses. The results of our study are summarized as follows. (1) The strong-force suppression of the repulsive Coulomb forces between quarks is sufficient to explain
Externí odkaz:
https://doaj.org/article/cc519128c20349a7ad3f6b765d8c7fc2
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-41 (2024)
Abstract We extract the top-quark mass value in the on-shell renormalization scheme from the comparison of theoretical predictions for pp → t t ¯ $$ t\overline{t} $$ + X at next-to-next-to-leading order (NNLO) QCD accuracy with experimental data c
Externí odkaz:
https://doaj.org/article/90829c9cfc07488487784bfc6773a16f
Autor:
Alejandro Bris, Vicent Mateu
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-60 (2024)
Abstract Processes involving only massless or massive quarks at tree-level get corrections from massive (lighter, heavier, or equal-mass) secondary quarks starting at two-loop order, generated by a virtual gluon splitting into a massive quark anti-qu
Externí odkaz:
https://doaj.org/article/9e8558f517994391a963e22ca82fcf2a
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-41 (2024)
Abstract In this paper, we investigate the heavy quark (HQ) mass effects on the transverse momentum dependent fragmentation function (TMDFF). We first calculate the one-loop TMDFF initiated by a heavy quark. We then investigate the HQ TMDFF in the li
Externí odkaz:
https://doaj.org/article/508aaa1092d24d4ea933130f8086f21d
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 4, Pp 1-10 (2024)
Abstract The running of the top quark mass (m t) is probed at the next-to-next-to-leading order in quantum chromodynamics for the first time. The result is obtained by comparing calculations in the modified minimal subtraction ( $$\overline{{\text{MS
Externí odkaz:
https://doaj.org/article/89dec134e94f49dc9e3e5c0b415ade1a
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-20 (2023)
Abstract We analyze in detail the most singular behaviour of processes involving triple-collinear splittings with massive particles in the quasi-collinear limit, and present compact expressions for the splitting amplitudes and the corresponding split
Externí odkaz:
https://doaj.org/article/6b5819d1974b4ebd99907f736d6ac9c7
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 12, Pp 1-73 (2023)
Abstract We generalize and update our former top quark mass calibration framework for Monte Carlo (MC) event generators based on the e + e − hadron-level 2-jettiness τ 2 distribution in the resonance region for boosted t t ¯ $$ t\overline{t} $$ p
Externí odkaz:
https://doaj.org/article/67520620537343d7b83b991141dfa932