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Ultimi arrivi:
2024-04-27
05:39
Probing Neutral Triple Gauge Couplings via $\boldsymbol{Z\gamma\,(\ell^+\ell^-\gamma)}$ Production at $\boldsymbol{e^+e^-}$ Colliders / Liu, Danning (Shanghai Jiao Tong U.) ; Xiao, Rui-Qing (Shanghai Jiao Tong U. ; King's Coll. London) ; Li, Shu (Shanghai Jiao Tong U. ; Maryland U. ; Peking U., CHEP) ; Ellis, John (Shanghai Jiao Tong U. ; King's Coll. London ; CERN) ; He, Hong-Jian (Shanghai Jiao Tong U. ; Peking U., CHEP) ; Yuan, Rui (Shanghai Jiao Tong U.)
Neutral triple gauge couplings (nTGCs) are absent in the Standard Model (SM) and at the dimension-6 level in the Standard Model Effective Field Theory (SMEFT), arising first from dimension-8 operators. [...]
KCL-PH-TH/2024-18 ; CERN-TH-2024-046 ; arXiv:2404.15937.
- 24 p.
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2024-04-27
05:39
Benchmark of deep-inelastic-scattering structure functions at $\mathcal{O}(\alpha_s^3)$ / Bertone, Valerio (IRFU, Saclay) ; Karlberg, Alexander (CERN)
We present a benchmark comparison of the massless inclusive deep-inelastic-scattering (DIS) structure functions up to $\mathcal{O}(\alpha_s^3)$ in perturbative QCD. [...]
CERN-TH-2024-018 ; arXiv:2404.15711.
- 21 p.
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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 $pp \rightarrow t\bar{t}j$. [...]
arXiv:2404.12325 ; CERN-TH-2024-048 ; ZU-TH 22/24.
- 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. (INFN, Naples) ; Iyer, A.M. (IIT, Jodhpur) ; Mahmoudi, F. (IP2I, Lyon ; CERN ; IUF, Paris) ; Neshatpour, S. (IP2I, Lyon)
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. [...]
arXiv:2404.03643 ; CERN-TH-2024-044.
- 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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