CERN Accelerating science

CERN Document Server 134 registres trobats  1 - 10següentfinal  anar al registre: La cerca s'ha fet en 0.59 segons. 
1.
A Decade of Collectivity in Small Systems / Grosse-Oetringhaus, Jan Fiete (CERN) ; Wiedemann, Urs Achim (CERN)
Signatures of collectivity, including azimuthally anisotropic and radial flow as well as characteristic hadrochemical dependencies, have been observed since long in (ultra)relativistic nucleus-nucleus collisions. [...]
CERN-TH-2024-110 ; arXiv:2407.07484.
- 81.
Fulltext
2.
Medium-enhanced $c\bar{c}$ radiation / Attems, Maximilian (CERN) ; Brewer, Jasmine (CERN) ; Innocenti, Gian Michele (CERN) ; Mazeliauskas, Aleksas (CERN) ; Park, Sohyun (CERN) ; van der Schee, Wilke (CERN) ; Soyez, Gregory (IPhT, Saclay) ; Wiedemann, Urs Achim (CERN)
We show that the same QCD formalism that accounts for the suppression of high-$p_T$ hadron and jet spectra in heavy-ion collisions predicts medium-enhanced production of $c\bar{c}$ pairs in jets..
arXiv:2209.13600; CERN-TH-2022-046.- 2024-05-21 - 8 p. - Published in : Phys. Rev. Lett. 132 (2024) 212301 Fulltext: 2209.13600 - PDF; Publication - PDF;
3.
The medium-modified $ g\to c\overline{c} $ splitting function in the BDMPS-Z formalism / Attems, Maximilian (CERN) ; Brewer, Jasmine (CERN) ; Innocenti, Gian Michele (CERN) ; Mazeliauskas, Aleksas (CERN) ; Park, Sohyun (CERN) ; van der Schee, Wilke (CERN) ; Wiedemann, Urs Achim (CERN)
The formalism of Baier-Dokshitzer-Mueller-Peigné-Schiff and Zakharov determines the modifications of parton splittings in the QCD plasma that arise from medium-induced gluon radiation. Here, we study medium-modifications of the gluon splitting into a quark--anti-quark pair in this BDMPS-Z formalism. [...]
arXiv:2203.11241; CERN-TH-2022-045.- 2023-01-16 - 58 p. - Published in : JHEP 01 (2023) 080 Fulltext: document - PDF; 2203.11241 - PDF;
4.
Bremsstrahlung photons from stopping in heavy-ion collisions / Park, Sohyun (CERN) ; Wiedemann, Urs Achim (CERN)
We examine the spectrum of bremsstrahlung photons that results from the stopping of the initial net charge distributions in ultrarelativistic nucleus-nucleus collisions at the CERN Large Hadron Collier (LHC). This effect has escaped detection so far since it becomes sizable only at very low transverse momentum and at sufficiently forward rapidity. [...]
arXiv:2107.05129; CERN-TH-2021-106.- 2021-10-04 - 7 p. - Published in : Phys. Rev. C 104 (2021) 4 Fulltext: Fulltext - PDF; 2107.05129 - PDF;
5.
Backreaction from inhomogeneous matter fields during large-scale structure formation / Floerchinger, Stefan (U. Heidelberg, ITP) ; Tetradis, Nikolaos (Athens U.) ; Wiedemann, Urs Achim (CERN)
We study how inhomogeneities of the cosmological fluid fields backreact on the homogeneous part of energy density and how they modify the Friedmann equations. In general, backreaction requires to go beyond the pressureless ideal fluid approximation, and this can lead to a reduced growth of cosmological large scale structure. [...]
arXiv:2106.10184; CERN-TH-2021-095.- 2021-10-08 - 11 p. - Published in : Phys. Rev. D 104 (2021) 083522 Fulltext: PDF; Fulltext form publisher: PDF;
6.
HIP and HEP / Wiedemann, Urs Achim (CERN)
This write-up of the ICHEP plenary "Heavy Ions - theory" focusses on some recent LHC discoveries and future opportunities in heavy ion physics (HIP) that are at the intersection with high energy physics (HEP)..
arXiv:2101.01971; CERN-TH-2021-006.- SISSA, 2021-04-15 - 10 p. - Published in : PoS ICHEP2020 (2021) 046 Fulltext: 2101.01971 - PDF; PoS(ICHEP2020)046 - PDF; Fulltext from publisher: PDF; Urs Achim Wiedemann: PDF;
In : 40th International Conference on High Energy Physics (ICHEP), Prague, Czech Republic, 28 Jul - 6 Aug 2020, pp.046
7.
Predicting parton energy loss in small collision systems / Huss, Alexander (CERN) ; Kurkela, Aleksi (CERN ; Stavanger U.) ; Mazeliauskas, Aleksas (CERN) ; Paatelainen, Risto (CERN) ; van der Schee, Wilke (CERN) ; Wiedemann, Urs Achim (CERN)
Medium induced parton energy loss is not conclusively established neither in very peripheral heavy-ion collisions nor in proton-ion collisions. However, the standard interpretation of azimuthal momentum anisotropies in theses systems implies some partonic rescattering. [...]
arXiv:2007.13758; CERN-TH-2020-127.- 2021-05-12 - 18 p. - Published in : Phys. Rev. C 103 (2021) 054903 Article from SCOAP3: PDF; Fulltext: PDF;
8.
Discovering partonic rescattering in light nucleus collisions / Huss, Alexander (CERN) ; Kurkela, Aleksi (CERN ; Stavanger U.) ; Mazeliauskas, Aleksas (CERN) ; Paatelainen, Risto (CERN) ; van der Schee, Wilke (CERN) ; Wiedemann, Urs Achim (CERN)
We demonstrate that oxygen-oxygen (OO) collisions at the LHC provide unprecedented sensitivity to parton energy loss in a system whose size is comparable to those created in very peripheral heavy-ion collisions. With leading and next-to-leading order calculations of nuclear modification factors, we show that the baseline in the absence of partonic rescattering is known with up to 2% theoretical accuracy in inclusive OO collisions [...]
arXiv:2007.13754; CERN-TH-2020-126.- 2021-05-12 - 6 p. - Published in : Phys. Rev. Lett. 126 (2021) 192301 Article from SCOAP3: PDF; Fulltext: PDF;
9.
Hydrodynamization in systems with detailed transverse profiles / Kurkela, Aleksi (CERN ; Stavanger U.) ; Taghavi, Seyed Farid (Munich, Tech. U.) ; Wiedemann, Urs Achim (CERN) ; Wu, Bin (CERN)
The observation of fluid-like behavior in nucleus-nucleus, proton-nucleus and high-multiplicity proton-proton collisions motivates systematic studies of how different measurements approach their fluid-dynamic limit. We have developed numerical methods to solve the ultra-relativistic Boltzmann equation for systems of arbitrary size and transverse geometry. [...]
arXiv:2007.06851; CERN-TH-2020-118.- 2020-12-10 - 8 p. - Published in : Phys. Lett. B 811 (2020) 135901 Article from SCOAP3: PDF; Fulltext: PDF;
10.
The dark matter bispectrum from effective viscosity and one-particle irreducible vertices / Floerchinger, Stefan (U. Heidelberg, ITP) ; Garny, Mathias (Munich, Tech. U.) ; Katsis, Aris (Athens U.) ; Tetradis, Nikolaos (Athens U.) ; Wiedemann, Urs Achim (CERN)
Dark matter evolution during the process of cosmological structure formation can be described in terms of a one-particle irreducible effective action at a characteristic scale $k_m$ and a loop expansion below this scale, based on the effective propagators and vertices. We calculate the form of the effective vertices and compute the bispectrum of density perturbations within a one-loop approximation. [...]
arXiv:1907.10729; CERN-TH-2019-122; TUM-HEP-1215/19.- 2019-09-23 - 24 p. - Published in : JCAP 1909 (2019) 047 Fulltext: PDF;

CERN Document Server : 134 registres trobats   1 - 10següentfinal  anar al registre:
Vegeu també: autors amb noms similars
24 WIEDEMANN, Urs
2 Wiedemann, U
11 Wiedemann, U A
3 Wiedemann, U.
29 Wiedemann, U.A.
24 Wiedemann, Urs
2 Wiedemann, Urs A
4 Wiedemann, Urs A.
181 Wiedemann, Urs Achim
1 Wiedemann, Urs Achim (editors)
Us interessa rebre alertes sobre nous resultats d'aquesta cerca?
Definiu una alerta personal via correu electrònic o subscribiu-vos al canal RSS.
No heu trobat el que estaveu cercant? Proveu la vostra cerca a:
WIEDEMANN, URS ACHIM dins Amazon
WIEDEMANN, URS ACHIM dins CERN EDMS
WIEDEMANN, URS ACHIM dins CERN Intranet
WIEDEMANN, URS ACHIM dins CiteSeer
WIEDEMANN, URS ACHIM dins Google Books
WIEDEMANN, URS ACHIM dins Google Scholar
WIEDEMANN, URS ACHIM dins Google Web
WIEDEMANN, URS ACHIM dins IEC
WIEDEMANN, URS ACHIM dins IHS
WIEDEMANN, URS ACHIM dins INSPIRE
WIEDEMANN, URS ACHIM dins ISO
WIEDEMANN, URS ACHIM dins KISS Books/Journals
WIEDEMANN, URS ACHIM dins KISS Preprints
WIEDEMANN, URS ACHIM dins NEBIS
WIEDEMANN, URS ACHIM dins SLAC Library Catalog
WIEDEMANN, URS ACHIM dins Scirus