bluuebunny/crossref_metadata_2025_split huggingface dataset:
Particle yields in pp interactions at

s=17.3

GeV interpreted in the statistical hadronization model
Authors: Matulewicz Tomasz , Piasecki Krzysztof 
Published: May 2021

Abstract
Following the recent measurement of several hadron yields by NA61/SHINE collaboration, the unified set of yields of particles produced in proton–proton collisions at

s

= 17.3 GeV (laboratory beam momentum 158 GeV/c) is evaluated, combining the results of the NA49 and NA61/SHINE collaborations at the CERN SPS. With the statistical hadronization code Thermal-Fist we confirm the unacceptably high value of χ
2, both in the canonical and grand canonical—strangeness canonical approach, and the common volume for all the hadrons. The use of the energy-dependent width of the Breit–Wigner parametrization for the mass distributions of unstable particles improves the quality of the description of particle yields only slightly. We confirm the observation that exclusion of the ϕ meson yield makes the fit result more reasonable. The complete experimental data set of particle yields can be also reasonably fitted if the canonical volumes of hadrons without and with open strangeness are allowed to vary independently. The canonical volume of strangeness was found to be larger than that for non-strange hadrons. The femtoscopy measurements with kaon pairs and pion pairs at

s

=

27.4, 63 and 900 GeV are not precise enough to confirm or reject this observation. The model with the best-fit parameters allows to predict the yields of several not yet measured particles emitted from p + p at

s

= 17.3 GeV.
Cavity-assisted preparation and detection of a unitary Fermi gas
Authors: Roux K , Helson V , Konishi H , Brantut J P 
Published: May 2021

Abstract
We report on the fast production and weakly destructive detection of a Fermi gas with tunable interactions in a high finesse cavity. The cavity is used both with far off-resonant light to create a deep optical dipole trap, and with near-resonant light to reach the strong light–matter coupling regime. The cavity-based dipole trap allows for an efficient capture of laser-cooled atoms, and the use of a lattice-cancellation scheme makes it possible to perform efficient intra-cavity evaporative cooling. After transfer in a crossed optical dipole trap, we produce deeply degenerate unitary Fermi gases with up to 7 × 105 atoms inside the cavity, with an overall 2.85 s long sequence. The cavity is then probed with near-resonant light to perform five hundred-times repeated, dispersive measurements of the population of individual clouds, allowing for weakly destructive observations of slow atom-number variations over a single sample. This platform will make possible the real-time observation of transport and dynamics as well as the study of driven-dissipative, strongly correlated quantum matter.
Constraints on bimetric gravity. Part I. Analytical constraints
Authors: Högås Marcus , Mörtsell Edvard 
Published: May 2021

Abstract
Ghost-free bimetric gravity is an extension of general relativity, featuring a massive spin-2 field coupled to gravity. We parameterize the theory with a set of observables having specific physical interpretations. For the background cosmology and the static, spherically symmetric solutions (for example approximating the gravitational potential of the solar system), there are four directions in the parameter space in which general relativity is approached. Requiring that there is a working screening mechanism and a nonsingular evolution of the Universe, we place analytical constraints on the parameter space which rule out many of the models studied in the literature. Cosmological solutions where the accelerated expansion of the Universe is explained by the dynamical interaction of the massive spin-2 field rather than by a cosmological constant, are still viable.
Bayesian evidence for both astrophysical and primordial black holes: mapping the GWTC-2 catalog to third-generation detectors
Authors: De Luca V. , Franciolini G. , Pani P. , Riotto A. 
Published: May 2021

Abstract
We perform a hierarchical Bayesian analysis of the GWTC-2 catalog to investigate the mixed scenario in which the merger events are explained by black holes of both astrophysical and primordial origin.
For the astrophysical scenario we adopt the phenomenological model used by the LIGO/Virgo collaboration and we include the correlation between different parameters inferred from data, the role of the spins in both the primordial and astrophysical scenarios, and the impact of accretion in the primordial scenario.
Our best-fit mixed model has a strong statistical evidence relative to the single-population astrophysical model, thus
supporting the coexistence of populations of black-hole mergers of two different origins.
In particular, our results indicate that the astrophysical mergers account for roughly four times the number of primordial black hole events and predict that third-generation detectors, such as the Einstein Telescope and Cosmic Explorer, should detect up to hundreds of mergers from primordial black hole binaries at redshift z≳30.
Structure formation limits on axion-like dark matter
Authors: Baumholzer Sven , Brdar Vedran , Morgante Enrico 
Published: May 2021

Abstract
We derive structure formation limits on dark matter (DM) composed of keV-scale axion-like particles (ALPs), produced via freeze-in through the interactions with photons and Standard Model (SM) fermions.
We employ Lyman-alpha (Ly-α) forest data sets as well as the observed number of Milky Way (MW) subhalos. We compare results obtained using Maxwell-Boltzmann and quantum statistics for describing the SM bath. It should be emphasized that the presence of logarithmic divergences complicates the calculation of the production rate, which can not be parameterized with a simple power law behaviour.
The obtained results, in combination with X-ray bounds, exclude the possibility for a photophilic “frozen-in” ALP DM with mass below ∼ 19. For the photophobic ALP scenario, in which DM couples primarily to SM fermions, the ALP DM distribution function is peaked at somewhat lower momentum and hence for such realization we find weaker limits on DM mass. Future facilities, such as the upcoming Vera C. Rubin observatory, will provide measurements with which the current bounds can be significantly improved to ∼ 80.
Properties of ultralight bosons from heavy quasar spins via superradiance
Authors: Ünal Caner , Pacucci Fabio , Loeb Abraham 
Published: May 2021

Abstract
The mass and the spin of accreting and jetted black holes, at the center of Active Galactic Nuclei (AGNs), can be probed by analyzing their electromagnetic spectra. For this purpose, we use the Spin-Modified Fundamental Plane of black hole activity, which non-linearly connects the following four variables (in the source frame): radio luminosity, X-ray or optical luminosity (via the [OIII] emission line), black hole mass and spin. Taking into account the uncertainties in luminosity measurements, conversion factors, relativistic beaming and physical properties of the AGN system, we derive lower bounds on the spins of a group of heavy, jetted AGNs. Using these results, we study the direct implications on the mass spectrum of the ultra-light particles of scalar (axion-like), vector (dark photon) and tensor types (additional spin-2 particles). We close unexplored gap in the parameter space 10-20-10-19eV. We obtain upper bounds on the axion decay constant (equivalently lower bounds on the self-interaction strength) considering self-interactions could prevent the axion particles entering the instability, and be the reason for non-observation of superradiance. Assuming axion is described by mass and decay constant, we obtain upper limits on what fraction of dark matter can be formed by ultra-light particles and find that single spieces axion-like light particle can constitute at most 10% of the dark matter in the mass range: 10-21 < μ (eV) < 10-17.
Combination of Passive Seismic (HVSR) and Active Seismic (MASW) Methods to Obtain Shear Wave Velocity Model of Subsurface in Majalengka
Authors: Budi A P , Ginting R A , Sunardi B , Sukanta I N 
Published: May 2021

Abstract
Majalengka is a district in West Java which is located close to local faults and subduction zone, so that made this area has a high enough risk of earthquake hazards. Engineering Seismology Team of Meteorology Climatology and Geophysics Agency has been carried out microtremor and MASW survey in Majalengka. The combination of HVSR and MASW inversion methods is applied to obtain the value of the shear wave velocity (Vs), a combination of the two methods is expected to overcome the deficiency of each method. Results of the distribution of the value of the shear wave velocity can explain the subsurface conditions related to a vulnerability in the study area to seismic hazards. The results of HVSR and MASW inversion are 1-D (Vs) profiles at each measurement point, after that interpolated to obtain a 3-D Vs30 model. The results showed that Vs30 values in Majalengka District varied around 80 - 1500 m/s. Layers with low (Vs) values were relatively thick dominant in the north and northwest regions of the study area, soil types in this area were mostly composed of medium soils, a small part was composed of soft soil layers and rock layers. Therefore, in theory, the disaster in the north and northwest regions has a relatively higher vulnerability compared to other regions in Majalengka District.
Charge sharing in single and double GEMs
Authors: Roy Promita , Bhattacharya Purba , Mukhopadhyay Supratik , Majumdar Nayana 
Published: May 2021

Abstract
The Gas Electron Multiplier (GEM) has become a widely used
technology for high-rate particle physics experiments like COMPASS,
LHCb and are going to be used for the upgrade of the detectors of
other experiments, such as ALICE TPC. Radiation hardness, ageing
resistance and stability against discharges are main criteria for
long-term operation of such detectors in high-rate experiments. In
particular, discharge is a serious issue as it may cause
irreversible damages to the detector as well to the readout
electronics. The charge density inside the amplification region is
one of the limiting factors for detector stability against
discharges. By using multiple devices, and thus sharing the electron
multiplication in different stages, the maximum sustainable gain can
be increased by several orders of magnitude. A common explanation
for this is connected to the transverse electron diffusion, which
causes widening of the electron cloud and reducing the charge
density in the last multiplier. This has been verified
experimentally [1] but numerical investigations, as far as we
know, are scarce. In our work, we are using Garfield simulation
framework as a tool to extract the information related to the
transverse size of the propagating electron cloud and thus to
estimate the charge density in the GEM holes for multiple
stages. For a given gas mixture, we will present the initial results
of charge sharing using single and double GEM detectors under
different electric field configurations and its effect on other
measurable detector parameters such as single point position
resolution.
Multifunctional Digital Backend for Quasar VLBI network
Authors: Nosov E. , Marshalov D. , Fedotov L. , Sheynman Y. 
Published: May 2021

Abstract
The new 13-meters radio telescope recently built at Svetloe
observatory (Russia) required a backend device that could digitize
wideband signals from the receiving system, process the signal
appropriately, prepare and transmit the resulting signal to the
recorder. The previously existing backends, also used at other radio
telescopes of Quasar VLBI network, could not provide compatibility
with VGOS (VLBI Global Observing System) requirements. We developed
Multifunctional Digital Backend (MDBE) with superior performance,
flexibility and functions to equip the new antenna and other radio
telescopes of the network with the same backend compatible with both
domestic and international systems. The MDBE contains up to 12 input
channels with 2 GHz bandwidth, powerful and remotely configurable
Field programmable gate arrays (FPGA) for digital signal processing,
and optical transceivers with total throughput of 50 Gbps per
channel. The digital downconverters implemented in FPGA can form sub
channels with 0.5, 2, 4, 8, 16, and 32 MHz bandwidth freely tuned
with 10 kHz step. In wideband mode a single channel with 512, 1024
or full 2048 MHz bandwidth can be recorded. The MDBE also supports
single-dish applications, such as radiometric and spectrometric
observations. The paper presents the results of hardware and
firmware development of the system, and the experimental results
received with the MDBE in Svetloe observatory.
Single-electron spectra in RPWELL-based detectors
Authors: Bhattacharya P. , Tesi A. , Shaked-Renous D. , Moleri L. , Breskin A. , Bressler S. 
Published: May 2021

Abstract
Single-electron spectra are the key ingredient in the
efficient detection of single UV-photons. In this work, we
investigated the shape of single-photoelectron spectra in single-
and double-stage Resistive Plate WELL (RPWELL) detector
configurations, operated in Ne/CH4 and
Ar/CH4. Discharge-free operation was reached over a
broad dynamic range, with charge gains of [range-phrase =
-]e4e6. Compared to the usual exponential ones, the observed
Polya-like charge spectra pave the way towards higher
single-electron detection efficiencies. The latter was evaluated
here, using experimental data combined with numerical simulations.
The effects of the gas mixtures, electric field configuration, and
detector geometry on the Polya spectra and their related
“θ” parameter are presented.
Immune response after allogeneic transplantation of decellularized uterine scaffolds in the rat
Authors: Padma Arvind Manikantan , Alsheikh Ahmed Baker , Song Min Jong , Akouri Randa , Akyürek Levent M. , Oltean Mihai , Brännström Mats , Hellström Mats 
Published: May 2021

Abstract
Data on how the immune system reacts to decellularized scaffolds after implantation is scarce and difficult to interpret due to many heterogeneous parameters such as tissue-type match, decellularization method and treatment application. The engraftment of these scaffolds must prove safe and that they remain inert to the recipient’s immune system to enable successful translational approaches and potential future clinical evaluation. Herein, we investigated the immune response after the engraftment of three decellularized scaffold types that previously showed potential to repair a uterine injury in the rat. Protocol (P) 1 and P2 were based on Triton-X100 and generated scaffolds containing 820 ng mg−1 and 33 ng mg−1 donor DNA per scaffold weight, respectively. Scaffolds obtained with a sodium deoxycholate-based protocol (P3) contained 160 ng donor DNA per mg tissue. The total number of infiltrating cells, and the population of CD45+ leukocytes, CD4+ T-cells, CD8a+ cytotoxic T-cells, CD22+ B-cells, NCR1+ NK-cells, CD68+ and CD163+ macrophages were quantified on days 5, 15 and 30 after a subcutaneous allogenic (Lewis to Sprague Dawley) transplantation. Gene expression for the pro-inflammatory cytokines INF-γ, IL-1β, IL-2, IL-6 and TNF were also examined. P1 scaffolds triggered an early immune response that may had been negative for tissue regeneration but it was stabilized after 30 d. Conversely, P3 initiated a delayed immune response that appeared negative for scaffold survival. P2 scaffolds were the least immunogenic and remained similar to autologous tissue implants. Hence, an effective decellularization protocol based on a mild detergent was advantageous from an immunological perspective and appears the most promising for future in vivo uterus bioengineering applications.
Assessing Infrastructure Projects Under Public-Private Partnerships
Authors: Mohamad Alabed Alkader Naief , Gordienko M S , Mohammad Mohammad Tariq Jassim 
Published: May 2021

Abstract
This paper discusses a methodological framework for assessing infrastructure projects on the base of public private partnership, which can help investors to take the decision of investment. The financing schemes associated with infrastructure projects have been considered and analyzed in this article and the FUZZY – AHP technique was applied to get the optimal financial scheme for financing infrastructure projects on the base of public private partnership. To get the optimal solution, the membership functions and the weights of the variables in every financial scheme in infrastructure projects on the base of private public partnership have been calculated. At the end, a case study was applied to demonstrate the application of analytical hierarchy process module. The results of the study can be used in theoretical and practical researches to develop the financial mechanism of infrastructure projects, as well as can help to predict new schemes to improve the infrastructure projects based on private public partnership.
Corporate social responsibility in the world in the context of selected religious doctrines
Authors: Malgorzata Idasiak 
Published: May 2021

AbstractThe publication was based on the desk research technique of a wide selection of domestic and foreign literature, analysis of secondary data, content of press releases and the KMPG report, and included: zero audit (identification of available data sets regarding the implementation and reporting of the CSR concept, as well as guidelines of religious doctrines equated with the postulates of the CSR concept; indication of a potential independent variable (the impact of the most important religious texts) on the dependent variable (the level of reporting of the concept) in selected countries with high indicator of a given religion (according to official statistics of the Pew Research Center); exploration of the data contained in the KMPG report covering the change in global reporting in 2011-2017, which consequently influenced the diagnosis of reporting the CSR in the world and the assessment of this reporting under the possible influence of religious doctrines. The data presented in the article shows that, since 2011 a gradual increase in interest in CSR reporting has been observed. In 2017, Americas overtook the Asia-Pacific region to become the leading region for global CSR reporting. CSR reporting rates in the Asia-Pacific region have been gradually stabilizing since 2013.
The link between travel motivation and satisfaction in heritage destination: The role of experiential factors and heritage destination image
Authors: Sanjaya Velysia , Aruan Tumpal Daniel H. 
Published: May 2021

Abstract
Gravari-Barbas (2018) states that the demand for heritage is becoming increasingly urgent in the context of a hypermodern society. The motivation-satisfaction relationship is a popular research topic in tourism. Both can be investigated through direct relationships and indirect relationships. However, the previous literature failed to explain the direct relationship between motivation-satisfaction. This study aims to determine the direct and indirect effects between tourists’ motivation-satisfaction towards the heritage destination through the role of experience-related factors and destination images perceived by tourists during a visit to a heritage destination. The sample is Indonesian citizens who had traveled to Borobudur Temple last year. The research is using Partial Least Square-Structural Equation Modeling (PLS-SEM) for processing data from 442 respondents. The result indicates a significant effect between motivation-satisfaction through destination image and one of the experiential factors. These findings contribute to understanding the determinants of tourist’s behavior and satisfaction towards a heritage destination.
Being entrepreneurial in giving loan, for the sustainability of the earth
Authors: Soesilo Nining I 
Published: May 2021

AbstractEntrepreneurship is part of the obligatory struggle for a good cause in a peaceful Islam. This research uses the narrative elaboration about the UMi program’s initiation and its process to become a national program to reach 46.8 million grassroots or 78.11 percent of Indonesia’s micro-enterprises. It is a specific case study, not a complete, chronological, and deductive writing, but a thematic, eclectic semi inductive process. UMi program matches SDG’s Goal 5, 8, and 16 about gender equality, economic growth, and Peace & Justice for the earth’s sustainability. The significant result is seen from the parliament permit to use the 7 trillion rupiahs of the State Budget for the UMi program in Indonesia, a peaceful poverty alleviation, albeit being used as a political tool during Jokowi’s presidential campaign.
Cognitive capitalism of wedding industry in the digital age: Case study of digital inequality on sustainability development goals
Authors: Nabila Aisha , Irwansyah  
Published: May 2021

Abstract
Wedding industry is one of industries that managed and expanded their businesses by keeping up with technology. As a form of one-stop shopping and marketplace of Indonesia’s wedding industry, Bridestory provides business strategies offered by the latest technology and offers convenience for brides, grooms, and wedding vendors. By providing platforms, websites, social media and mobile applications, it not only creates opportunities to support its sustainability in the wedding industry, but also serves the role of reducing economic inequalities by making wedding references accessible for everyone, not limited to the upper class-only. By constructing the ideology of ideal wedding throughout its digital communication channels, Bridestory is found to be operating their business strategy within the logic of cognitive capitalism. This study aims to dismantle the construction of the ideal wedding that has been revolving around in the industry by identifying four labor strategies in the logic of cognitive capitalism: free labor, immaterial labor, affective labor, and hope labor. This study managed to find the manifestation of value-network model that is related to digital inequality of sustainable development goals. The study found the exploitation of free labor and hope labor via their usage of social media application that contributed to products acquisition.
Toxicity of copper pollution on sperm quality of Cyprinus carpio
Authors: Pramudya M , Hayati A , Armando D S , Wulansari E , Faridah N , Susilo R J K 
Published: May 2021

Abstract
Water pollution by heavy metal waste from industry, agriculture, and other human activities affect the reproductive health of aquatic biota, especially freshwater fish. This study aimed to evaluate the quality of Cyprinus carpio sperm contaminated with copper (Cu). The sample used was gonad from mature fish. The sperm and eggs were taken by stripping, six times of repetition. Cu with a concentration of 0, 10, 25, 50, and 75 ppm were used to examine the sperm quality (duration of motility and viability, DNA fragmentation, malondialdehyde level) and the ability of sperm to fertilize. The data was collected after sperm incubation with the variation of Cu concentration for five seconds. The sperm observation was done under inverted and fluorescence microscopes. The results showed that Cu exposure caused fertilization failure, thus reducing the number of fertilized eggs. The increase of Cu concentration from 10 ppm to 25 ppm caused a decrease in sperm quality and sperm fertilization. The increase in Cu concentration also raised the percentage of DNA fragmentation. In conclusion, in vitro exposure of Cu reduced sperm motility and viability as well as reduced the fertility in Cyprinus carpio