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String with deformed dispersion relation

J. Klusoň • European Physical Journal C: Particles and Fields (2022)

Abstract We study string theory with momentum living on de Sitter space. We argue that consistency of the theory implies that the global momentum can be defined on de Sitter space. Then we perform careful canonical analysis and we we also s...

DOAJ Open Access (DOAJ) DOI: 10.1140/epjc/s10052-022-11025-1

An IXPE-led X-Ray Spectropolarimetric Campaign on the Soft State of Cygnus X-1: X-Ray Polarimetric Evidence for Strong Gravitational Lensing

James F. Steiner, Edward Nathan, Kun Hu, Henric Krawczynski et al. • The Astrophysical Journal Letters (2024)

We present the first X-ray spectropolarimetric results for Cygnus X-1 in its soft state from a campaign of five IXPE observations conducted during 2023 May–June. Companion multiwavelength data during the campaign are likewise shown. The 2–8...

DOAJ Open Access (DOAJ) DOI: 10.3847/2041-8213/ad58e4

Reconnaissance with JWST of the J-region Asymptotic Giant Branch in Distance Ladder Galaxies: From Irregular Luminosity Functions to Approximation of the Hubble Constant

Siyang Li, Adam G. Riess, Stefano Casertano, Gagandeep S. Anand et al. • The Astrophysical Journal (2024)

We study stars in the J-regions of the asymptotic giant branch (JAGB) of near-infrared color–magnitude diagrams in the maser host NGC 4258 and four hosts of six Type Ia supernovae (SNe Ia): NGC 1448, NGC 1559, NGC 5584, and NGC 5643. These ...

DOAJ Open Access (DOAJ) DOI: 10.3847/1538-4357/ad2f2b

Polarized Multiwavelength Emission from Pulsar Wind—Accretion Disk Interaction in a Transitional Millisecond Pulsar

Maria Cristina Baglio, Francesco Coti Zelati, Alessandro Di Marco, Fabio La Monaca et al. • The Astrophysical Journal Letters (2025)

Transitional millisecond pulsars (tMSPs) bridge the evolutionary gap between accreting neutron stars in low-mass X-ray binaries and millisecond radio pulsars. These systems exhibit a unique subluminous X-ray state characterized by the prese...

DOAJ Open Access (DOAJ) DOI: 10.3847/2041-8213/add7d2

D-brane and exponential potentials inspire warm inflation and swampland conjecture

Shama Sadiq, Nadeem Azhar, N. Myrzakulov, S. Toktarbay et al. • Nuclear Physics B (2025)

This research explores the rapid expansion period of the early universe by applying the Chaplygin gas model, an alternative cosmological framework, to analyze the dynamics of inflationary processes. This study assesses the compatibility of ...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.nuclphysb.2025.116981

TeV Diffuse Emission From the Inner Galaxy

Amid Nayerhoda, Francisco Salesa Greus, Sabrina Casanova • Frontiers in Astronomy and Space Sciences (2018)

The TeV diffuse emission from the Galactic plane is produced by multi TeV electrons and nuclei interacting with radiation fields and ambient gas, respectively. Measurements of the TeV diffuse emission help constrain CR origin and transport ...

DOAJ Open Access (DOAJ) DOI: 10.3389/fspas.2018.00008

Discrimination of Non-Local Correlations

Alberto Montina, Stefan Wolf • Entropy (2019)

In view of the importance of quantum non-locality in cryptography, quantum computation, and communication complexity, it is crucial to decide whether a given correlation exhibits non-locality or not. As proved by Pitowski, this problem is N...

DOAJ Open Access (DOAJ) DOI: 10.3390/e21020104

Nonresonant renormalization scheme for twist-2 operators in SU(N) Yang–Mills theory

Francesco Scardino • European Physical Journal C: Particles and Fields (2024)

Abstract Recently, the short-distance asymptotics of the generating functional of n-point correlators of twist-2 operators in SU(N) Yang–Mills (YM) theory has been worked out in Bochicchio et al. (Phys Rev D 108:054023, 2023). The above com...

DOAJ Open Access (DOAJ) DOI: 10.1140/epjc/s10052-024-13590-z