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Letzte Einträge:
2024-04-25
07:27
$1/Q^2$ power corrections to TMD factorization for Drell-Yan hadronic tensor / Balitsky, Ian (Old Dominion U.)
I calculate ${1\over Q^2}$ power corrections to unpolarized Drell-Yan hadronic tensor for electromagnetic (EM) current at large $N_c$ and demonstrate the EM gauge invariance at this level..
CERN-TH-2024-051 ; JLAB-THY-24-4014 ; arXiv:2404.15116. - 68 p.
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2024-04-25
07:25
Energy correlations and Planckian collisions / Chen, Hao (Zhejiang U., Inst. Mod. Phys.) ; Karlsson, Robin (CERN) ; Zhiboedov, Alexander (CERN)
Energy correlations characterize the energy flux through detectors at infinity produced in a collision event. [...]
CERN-TH-2024-050 ; arXiv:2404.15056. - 75 p.
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2024-04-25
04:58
Resummation of combined QCD-electroweak effects in Drell Yan lepton-pair production / Buonocore, Luca (CERN) ; Rottoli, Luca (Zurich U.) ; Torrielli, Paolo (Turin U.)
We consider neutral- and charged-current Drell Yan lepton-pair production at hadron colliders, and include dominant classes of electroweak and mixed QCD-electroweak corrections to all orders in perturbation theory. [...]
ZU-TH 21/24 ; CERN-TH-2024-045 ; arXiv:2404.15112. - 23 p.
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2024-04-20
05:03
Two-loop integrals for $t \bar{t} +$jet production at hadron colliders in the leading colour approximation / Badger, Simon (INFN, Turin) ; Becchetti, Matteo (Bologna U. ; INFN, Bologna) ; Giraudo, Nicolò (Zurich U.) ; Zoia, Simone (CERN)
We compute the differential equations for the two remaining integral topologies contributing to the leading colour two-loop amplitudes for $pp \rightarrow t\bar{t}j$. [...]
CERN-TH-2024-048 ; ZU-TH 22/24 ; arXiv:2404.12325. - 22 p.
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2024-04-09
04:57
Summary of Working Group 4: Mixing and mixing-related $CP$ violation in the B system: $\Delta m$, $\Delta \Gamma$, $\phi_s$, $\phi_1/\alpha$, $\phi_2/\beta$, $\phi_3/\gamma$ / Dziurda, Agnieszka ; Erben, Felix ; Führing, Marc Quentin ; Humair, Thibaud ; Latham, Thomas ; Malami, Eleftheria ; Reeck, Pascal ; Shtabovenko, Vladyslav ; Cruz Torres, Melissa ; Uematsu, Yuma et al.
This summary reviews contributions to the CKM 2023 workshop in Working Group 4: mixing and mixing-related $CP$ violation in B system. [...]
arXiv:2404.03945 ; P3H-24-017 ; TTP24-006 ; CERN-TH-2024-043. -
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2024-04-06
04:07
Exploring scalar contributions with $K^+ \to \pi^+ \ell^+ \ell^-$ / D'Ambrosio, G. ; Iyer, A.M. ; Mahmoudi, F. ; Neshatpour, S.
The rare kaon decay $K^+ \to \pi^+ \ell^+ \ell^-$ is an interesting process that offers insights into both Standard Model physics and potential New Physics contributions. [...]
CERN-TH-2024-044 ; arXiv:2404.03643. - 7 p.
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2024-04-05
04:47
Forecasting the sensitivity of Pulsar Timing Arrays to gravitational wave backgrounds / Babak, Stanislav (APC, Paris) ; Falxa, Mikel (LPC2E, Orleans ; APC, Paris) ; Franciolini, Gabriele (CERN) ; Pieroni, Mauro (CERN)
Pulsar Timing Array (PTA) observations hinted towards the existence of a stochastic gravitational wave background (SGWB) in the nHz frequency band. [...]
arXiv:2404.02864 ; CERN-TH-2024-039. - 16 p.
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2024-04-05
04:43
Kaon mixing beyond the standard model with physical masses / Boyle, Peter A. ; Erben, Felix ; Flynn, Jonathan M. ; Garron, Nicolas ; Kettle, Julia ; Mukherjee, Rajnandini ; Tsang, J. Tobias
We present non-perturbative results for beyond the standard model kaon mixing matrix elements in the isospin symmetric limit ($m_u=m_d$) of QCD, including a complete estimate of all dominant sources of systematic error. [...]
arXiv:2404.02297 ; CERN-TH-2024-040 ; LTH 1366. - 31 p.
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2024-04-04
09:55
On the potential of Light-Cone Sum Rules without Quark-Hadron Duality / Carvunis, A. (Turin U. ; INFN, Turin) ; Mahmoudi, F. (Lyon U. ; IP2I, Lyon ; CERN ; IUF, Paris) ; Monceaux, Y. (Lyon U.)
This work addresses the calculation of local form factors involved in the theoretical predictions of semileptonic $B$-meson decays at low-$q^2$. [...]
arXiv:2404.01290 ; CERN-TH-2024-041. - 31 p.
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2024-03-30
04:07
Consistency of JWST Black Hole Observations with NANOGrav Gravitational Wave Measurements / Ellis, John ; Fairbairn, Malcolm ; Hütsi, Gert ; Urrutia, Juan ; Vaskonen, Ville ; Veermäe, Hardi
JWST observations have opened a new chapter in studies of supermassive black holes (SMBHs), stimulating discussion of two puzzles: the abundance of SMBHs in the early Universe and the fraction of dual AGNs. [...]
KCL-PH-TH/2024-16 ; CERN-TH-2024-038 ; AION-REPORT/2024-03 ; arXiv:2403.19650. -
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