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TH Preprints

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2020-09-17
04:35
Local Primordial Non-Gaussianities and Super-Sample Variance / Castorina, Emanuele (CERN) ; Moradinezhad Dizgah, Azadeh (Geneva U., Dept. Theor. Phys.)
Fluctuations with wavelengths larger than the volume of a galaxy survey affect the measurement of the galaxy power spectrum within the survey itself. [...]
arXiv:2005.14677 ; CERN-TH-2020-083. - 15 p.

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2020-09-16
04:57
Has NANOGrav found first evidence for cosmic strings? / Blasi, Simone ; Brdar, Vedran ; Schmitz, Kai
The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has recently reported strong evidence for a stochastic common-spectrum process affecting the pulsar timing residuals in its 12.5-year data set. [...]
arXiv:2009.06607 ; CERN-TH-2020-151. - 5 p.
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2020-09-16
04:57
Cosmic String Interpretation of NANOGrav Pulsar Timing Data / Ellis, John ; Lewicki, Marek
Pulsar timing data used to provide upper limits on a possible stochastic gravitational wave background (SGWB). [...]
arXiv:2009.06555 ; KCL-PH-TH/2020-53 ; CERN-TH-2020-150. - 10 p.
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2020-09-12
04:31
Multiplicity dependence of (multi-)strange baryons in the canonical ensemble with phase shift corrections / Cleymans, Jean ; Lo, Pok Man ; Redlich, Krzysztof ; Sharma, Natasha
The increase in strangeness production with charged particle multiplicity, as seen by the ALICE collaboration at CERN in p-p, p-Pb and Pb-Pb collisions, is investigated in the hadron resonance gas model taking into account interactions among hadrons using S-matrix corrections based on known phase shift analyses. [...]
arXiv:2009.04844 ; CERN-TH-2020-141. - 15 p.
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2020-09-12
04:31
Early Time Dynamics and the Bulk / Wu, Bin
Deciphering the origin of collective phenomena in small colliding systems is one of contemporary focuses in heavy-ion physics. [...]
arXiv:2009.04974 ; CERN-TH-2020-149. - 9 p.
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2020-09-10
04:06
Fewer Mocks and Less Noise: Reducing the Dimensionality of Cosmological Observables with Subspace Projections / Philcox, Oliver H.E. ; Ivanov, Mikhail M. ; Zaldarriaga, Matias ; Simonovic, Marko ; Schmittfull, Marcel
Creating accurate and low-noise covariance matrices represents a formidable challenge in modern-day cosmology. [...]
arXiv:2009.03311 ; CERN-TH-2020-146 ; INR-TH-2020-037. - 21 p.
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2020-09-09
04:46
Beware of commonly used approximations II: estimating systematic biases in the best-fit parameters / Bernal, José Luis ; Bellomo, Nicola ; Raccanelli, Alvise ; Verde, Licia
Cosmological parameter estimation from forthcoming experiments promise to reach much greater precision than current constraints. [...]
arXiv:2005.09666 ; CERN-TH-2020-054. - 21 p.
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2020-09-05
04:08
Low Mass Black Holes from Dark Core Collapse / Dasgupta, Basudeb (Tata Inst.) ; Laha, Ranjan (CERN) ; Ray, Anupam (Tata Inst.)
Unusual masses of the black holes being discovered by gravitational wave experiments pose fundamental questions about the origin of these black holes. [...]
arXiv:2009.01825 ; TIFR/TH/20-32 ; CERN-TH-2020-145. - 8 p.
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2020-09-05
04:08
Building Models of Inflation in No-Scale Supergravity / Ellis, John (King's Coll. London ; CERN ; NICPB, Tallinn) ; Garcia, Marcos A.G. (Madrid, Autonoma U.) ; Nagata, Natsumi (Tokyo U.) ; Nanopoulos, Dimitri V. (TAMU, College Station ; HARC, Woodlands ; Athens Academy) ; Olive, Keith A. (Minnesota U.) ; Verner, Sarunas (Minnesota U.)
After reviewing the motivations for cosmological inflation formulated in the formalism of supersymmetry, we argue that the appropriate framework is that of no-scale supergravity. [...]
arXiv:2009.01709 ; KCL-PH-TH/2020-44 ; CERN-TH-2020-136 ; ACT-6-20 ; MI-TH-2024, UMN-TH-3926/20 ; FTPI-MINN-20/29 ; IFT-UAM/CSIC-20-126. - 84 p.
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2020-09-05
04:08
Implications of $\textit{SU}(2)_L$ gauge invariance for constraints on Lorentz violation / Crivellin, Andreas (CERN ; Zurich U. ; PSI, Villigen) ; Kirk, Fiona (PSI, Villigen ; Zurich U.) ; Schreck, Marco (UFMA, Bacanga)
Lorentz invariance is one of the basic ingredients of quantum field theories and violations of it are stringently constrained experimentally. [...]
arXiv:2009.01247 ; CERN-TH-2020-142 ; PSI-PR-20-14 ; ZU-TH 29/20. - 9 p.
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