CERN Accelerating science

CERN-TH

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2019-10-02
08:00
Probing Muonic Forces with Neutron Stars Binaries / Dror, Jeff A. (LBL, Berkeley ; UC, Berkeley) ; Laha, Ranjan (CERN) ; Opferkuch, Toby (CERN)
We show that gravitational wave emission from neutron star binaries can be used to discover any generic long-ranged muonic force due to the large inevitable abundance of muons inside neutron stars. [...]
arXiv:1909.12845 ; CERN-TH-2019-150.
- 2019. - 11 p.
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2019-09-28
04:47
Projection effects on the observed angular spectrum of the astrophysical stochastic gravitational wave background / Bertacca, Daniele (U. Padua, Dept. Phys. Astron. ; INFN, Padua ; Padua Observ.) ; Ricciardone, Angelo (INFN, Padua) ; Bellomo, Nicola (ICC, Barcelona U. ; ICC, Barcelona U.) ; Jenkins, Alexander C. (King's Coll. London) ; Matarrese, Sabino (U. Padua, Dept. Phys. Astron. ; INFN, Padua ; Padua Observ. ; GSSI, Aquila) ; Raccanelli, Alvise (CERN) ; Regimbau, Tania (Annecy, LAPP) ; Sakellariadou, Mairi (King's Coll. London)
The detection and characterization of the Stochastic Gravitational Wave Background (SGWB) is one of the main goals of Gravitational Wave (GW) experiments. [...]
arXiv:1909.11627 ; CERN-TH-2019-153 ; KCL-PH-TH 2019-73.
- 2019. - 19 p.
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2019-09-28
04:47
New physics implications of recent search for $K_L \to \pi^0 \nu\bar{\nu}$ at KOTO / Kitahara, Teppei (Technion ; KMI, Nagoya ; Nagoya U., IAR) ; Okui, Takemichi (Florida State U. ; KEK, Tsukuba) ; Perez, Gilad (Weizmann Inst.) ; Soreq, Yotam (Technion ; CERN) ; Tobioka, Kohsaku (Florida State U. ; KEK, Tsukuba)
The KOTO experiment recently reported four candidate events in the signal region of $K_L\to \pi^0 \nu\bar\nu$ search, where the standard model only expects $0.10\pm 0.02$ events. If confirmed, this requires physics beyond the standard model to enhance the signal. [...]
arXiv:1909.11111; KEK-TH-2157; CERN-TH-2019-151.- 2020-02-20 - 6 p. - Published in : Phys. Rev. Lett. 124 (2020) 071801 Article from SCOAP3: PDF; Fulltext: PDF;

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2019-09-28
04:47
A Standard Model explanation for the excess of electron-like events in MiniBooNE / Ioannisian, A. (Yerevan Phys. Inst. ; ITPM, Yerevan ; CERN)
We study the dependence of neutral current (NC) neutrino-induced $\pi^0$/photon production ($\nu_\mu + A \to \nu_\mu +1\pi^0 / \gamma + X$) on the atomic number of the target nucleus, A, at 4-momentum transfers relevant to the MiniBooNE experiment: $\Delta$ resonance mass region. [...]
arXiv:1909.08571 ; CERN-TH-2019-152.
- 2019. - 2 p.
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2019-09-25
04:46
Consistency checks for two-body finite-volume matrix elements: Conserved currents and bound states / Briceño, Raúl A. (Jefferson Lab ; Old Dominion U.) ; Hansen, Maxwell T. (CERN) ; Jackura, Andrew W. (Jefferson Lab ; Old Dominion U.)
Recently, a framework has been developed to study form factors of two-hadron states probed by an external current. The method is based on relating finite-volume matrix elements, computed using numerical lattice QCD, to the corresponding infinite-volume observables. [...]
arXiv:1909.10357; JLAB-THY-19-3040; CERN-TH-2019-149.- 2019-12-06 - 17 p. - Published in : Phys. Rev. D 100 (2019) 114505 Article from SCOAP3: PDF; Fulltext: PDF;

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2019-09-14
05:19
Cosmological Parameters from the BOSS Galaxy Power Spectrum / Ivanov, Mikhail M. (New York U., CCPP ; Moscow, INR) ; Simonović, Marko (CERN) ; Zaldarriaga, Matias (Princeton, Inst. Advanced Study)
We present cosmological parameter measurements from the publicly available Baryon Oscillation Spectroscopic Survey (BOSS) data on anisotropic galaxy clustering in Fourier space. [...]
arXiv:1909.05277 ; INR-TH-2019-016 ; CERN-TH-2019-132.
- 2019. - 53 p.
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2019-09-14
05:19
Higgs transverse momentum with a jet veto: a double-differential resummation / Monni, Pier Francesco (CERN) ; Rottoli, Luca (Milan Bicocca U. ; INFN, Milan) ; Torrielli, Paolo (INFN, Turin ; Turin U.)
We consider the simultaneous measurement of the Higgs ($p_t^{\tiny{\mbox{H}}}$) and the leading jet ($p_t^{\tiny{\mbox{J}}}$) transverse momentum in hadronic Higgs-boson production, and perform the resummation of the large logarithmic corrections that originate in the limit $p_t^{\tiny{\mbox{H}}}\,,p_t^{\tiny{\mbox{J}}} \ll m_{\tiny{\mbox{H}}}$ up to next-to-next-to-leading-logarithmic order. [...]
arXiv:1909.04704 ; CERN-TH-2019-101.
- 2019. - 13 p.
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2019-09-11
04:58
Second-order QCD corrections to event shape distributions in deep inelastic scattering / Gehrmann, T. (Zurich U.) ; Huss, A. (CERN) ; Mo, J. (Zurich U.) ; Niehues, J. (Durham U., IPPP)
We compute the next-to-next-to-leading order (NNLO) QCD corrections to event shape distributions and their mean values in deep inelastic lepton-nucleon scattering. The magnitude and shape of the corrections varies considerably between different variables. [...]
arXiv:1909.02760; CERN-TH-2019-140; IPPP/19/68; ZU-TH 39/19.- 2019-12-19 - 15 p. - Published in : Eur. Phys. J. C 79 (2019) 1022 Article from SCOAP3: PDF; Fulltext: PDF; External link: Fulltext from publisher

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2019-09-07
04:57
Correlating $\epsilon^\prime/\epsilon$ to hadronic $B$ decays via $U(2)^3$ flavour symmetry / Crivellin, Andreas (PSI, Villigen ; Zurich U.) ; Gross, Christian (INFN, Pisa ; Pisa U. ; CERN) ; Pokorski, Stefan (Warsaw U.) ; Vernazza, Leonardo (Nikhef, Amsterdam)
There are strong similarities between charge-parity (CP) violating observables in hadronic $B$ decays (in particular $\Delta A^-_{\rm CP}$ in $B\to K\pi$) and direct CP violation in Kaon decays ($\epsilon^\prime$): All these observables are very sensitive to new physics (NP) which is at the same time CP and isospin violating (i.e. NP with complex couplings which are different for up quarks and down quarks). [...]
arXiv:1909.02101; PSI-PR-19-18; UZ-TH 41/19; CERN-TH-2019-142; Nikhef/2019-041, INT-PUB-19-041; Nikhef/2019-041, INT-PUB-19-041.- 2020-01-29 - 8 p. - Published in : Phys. Rev. D 101 (2020) 015022 Fulltext: PDF; Published fulltext: PDF;

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2019-09-06
05:30
The Duality Between Color and Kinematics and its Applications / Bern, Zvi (UCLA ; CERN) ; Carrasco, John Joseph (Northwestern U. ; IPhT, Saclay) ; Chiodaroli, Marco (Uppsala U.) ; Johansson, Henrik (Uppsala U. ; Stockholm U. ; Royal Inst. Tech., Stockholm) ; Roiban, Radu (Pennsylvania U.)
This review describes the duality between color and kinematics and its applications, with the aim of gaining a deeper understanding of the perturbative structure of gauge and gravity theories. [...]
arXiv:1909.01358 ; CERN-TH-2019-135 ; UCLA/TEP/2019/104 ; NUHEP-TH/19-11 ; UUITP-35/19, NORDITA 2019-079.
- 2019. - 208 p.
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