物理最新文献

{"title":"Calorimetric wire detector for measurement of atomic hydrogen beams","authors":"M. Astaschov,&nbsp;S. Bhagvati,&nbsp;S. Böser,&nbsp;M. J. Brandsema,&nbsp;R. Cabral,&nbsp;C. Claessens,&nbsp;L. de Viveiros,&nbsp;S. Enomoto,&nbsp;D. Fenner,&nbsp;M. Fertl,&nbsp;J. A. Formaggio,&nbsp;B. T. Foust,&nbsp;J. K. Gaison,&nbsp;P. Harmston,&nbsp;K. M. Heeger,&nbsp;M. B. Hüneborn,&nbsp;X. Huyan,&nbsp;A. M. Jones,&nbsp;B. J. P. Jones,&nbsp;E. Karim,&nbsp;K. Kazkaz,&nbsp;P. Kern,&nbsp;M. Li,&nbsp;A. Lindman,&nbsp;C.-Y. Liu,&nbsp;A. Marsteller,&nbsp;C. Matthé,&nbsp;R. Mohiuddin,&nbsp;B. Monreal,&nbsp;B. Mucogllava,&nbsp;R. Mueller,&nbsp;A. Negi,&nbsp;J. A. Nikkel,&nbsp;N. S. Oblath,&nbsp;M. Oueslati,&nbsp;J. I. Peña,&nbsp;W. Pettus,&nbsp;R. Reimann,&nbsp;A. L. Reine,&nbsp;R. G. H. Robertson,&nbsp;D. Rosa De Jesús,&nbsp;L. Saldaña,&nbsp;P. L. Slocum,&nbsp;F. Spanier,&nbsp;J. Stachurska,&nbsp;Y.-H. Sun,&nbsp;P. T. Surukuchi,&nbsp;A. B. Telles,&nbsp;F. Thomas,&nbsp;L. A. Thorne,&nbsp;T. Thümmler,&nbsp;W. Van De Pontseele,&nbsp;B. A. VanDevender,&nbsp;T. E. Weiss,&nbsp;M. Wynne,&nbsp;A. Ziegler,&nbsp;(Project 8 Collaboration)","doi":"10.1140/epjd/s10053-025-00987-y","DOIUrl":"10.1140/epjd/s10053-025-00987-y","url":null,"abstract":"<p>A calorimetric detector for minimally disruptive measurements of atomic hydrogen beams is described. The calorimeter measures heat released by the recombination of hydrogen atoms into molecules on a thin wire. As a demonstration, the angular distribution of a beam with a peak intensity of <span>(approx 10^{16} ,{textrm{atoms}}/{(textrm{cm}^2 textrm{s})})</span> is measured by translating the wire across the beam. The data agree well with an analytic model of the beam from the thermal hydrogen atom source. Using the beam shape model, the relative intensity of the beam can be determined to 5% precision or better at any angle.</p>","PeriodicalId":789,"journal":{"name":"The European Physical Journal D","volume":"79 5","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjd/s10053-025-00987-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis and magnetic properties of PVP capped Ni0.6Zn0.2Sb0.2Fe2O4 nanoferrites","authors":"L. W. El Khatib,&nbsp;A. M. Abdallah,&nbsp;M. Noun,&nbsp;Nour El Ghouch,&nbsp;G. O. Younes,&nbsp;R. Awad","doi":"10.1007/s00339-025-08613-9","DOIUrl":"10.1007/s00339-025-08613-9","url":null,"abstract":"<div><p>The co-precipitation method was used to synthesize Ni_0.6Zn_0.2Sb_0.2Fe₂O₄ nanoparticles capped with different concentrations of Polyvinylpyrrolidone (PVP) (0-2.414 mM). X-ray powder diffraction (XRD) determined that the addition of the PVP capping agent caused an increase in the weight% of the main phase (Ni_0.6Zn_0.2Sb_0.2Fe₂O₄) and a decrease in the weight% of the secondary phase (hematite phase (α-Fe₂O₃)) in all samples compared to P0 (0 mM). The P7 sample (0.3451 mM) registered the highest percentage of the main phase (98.48%) and the lowest percentage of the secondary phase (1.52%). The increase in PVP concentrations caused a decrease in the porosity. Transmission electron microscopy (TEM) revealed the formation of spherical-shaped nanoferrites. Also, it confirmed that PVP improved the shape of the particles and tended to slightly increase their size with the P7 sample having the greatest particle size (18.320 nm). The selected area electron diffraction (SAED) patterns proved the formation of nanoferrites of polycrystalline nature. Energy dispersive X-ray (EDX) proved the purity of the synthesized nanoferrites. The oxidation state (Ni²⁺, Ni³⁺, Zn²⁺, Sb³⁺, Fe^3+, and O²⁻) and the elemental composition of the synthesized nanoferrites were examined using X-ray photoelectron spectroscopy (XPS). Moreover, the functional groups were analyzed via Fourier transform infrared spectroscopy (FTIR). Raman spectroscopy technique identified the presence of four phonon modes: two A_1g and two F_2g. The vibrating sample magnetometer (VSM) proved that all samples attained a weak ferromagnetic behavior, which was modeled by the Law of approach to saturation. Sample P7 exhibited the highest saturation magnetization value of 43.968 emu/g, making it the best sample for magnetic applications and recording devices.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 6","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Band gap modification and emission of blue-orange luminescence in Gd3+- substituted bismuth nano-ferrites synthesized by modified Pechini chemical route and their applications in LED and solar cells","authors":"Chandra Bhal Singh,&nbsp;Narendra Kumar Verma,&nbsp;Surendra Kumar,&nbsp;Khalid Mujasam Batoo,&nbsp;Muhammad Farzik Ijaz","doi":"10.1007/s00339-025-08619-3","DOIUrl":"10.1007/s00339-025-08619-3","url":null,"abstract":"<div><p>The ferroelectric perovskites, such as BiFeO₃ (BFO) has shown great potential as nanophosphors and photovoltaic materials. We have demonstrated a simple and convenient chemical solution deposition method to synthesize Gd doped BiFeO₃ nanoparticles. Bi_1 − xGd_xFeO₃ (BGFO) nanoparticles are synthesized by modified Pechini method. Rietveld refinement of X-ray diffraction data confirmed a rhombohedral R3c crystal structure for all compositions. SEM analysis revealed highly crystalline nanoparticles with a decreasing average particle size from 346 nm to 180 nm as Gd concentration increased. Optical studies showed that Gd substitution reduced the band gap from 2.0 eV to 1.87 eV, attributed to lattice distortion and defect-induced sub-bands. There is secondary band gap is also observed around 1.42 eV. Photoluminescence (PL) studies indicated blue emission around 460 nm and orange emissions at 603 nm with PL intensity decreasing upon Gd doping. Commission Internationale de l’Eclairage (CIE) chromatic coordinates and color-correlated temperature were also determined for the prepared nanophosphor. Photovoltaic behavior is obtained in spin coated Bi_0.98Gd_0.02FeO₃ thin films. The incorporation of hole transport layer (P3HT) and electron transport layers (ZnO) significantly improved device performance, increasing J_sc from 0.70 mA/cm² to 3.18 mA/cm², V_oc from 0.17 V to 0.504 V and 94% increase in device efficiency. The findings showed that the optimized nanoparticles and thin films could generate a lot of interest for application in blue-orange LED and as semiconducting photoactive layer materials in solar cells.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 6","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Improved and automated krypton assay for low-background xenon detectors with Auto-RGMS","authors":"Matteo Guida,&nbsp;Ying-Ting Lin,&nbsp;Hardy Simgen","doi":"10.1140/epjc/s10052-025-14262-2","DOIUrl":"10.1140/epjc/s10052-025-14262-2","url":null,"abstract":"<div><p>Ultra-sensitive quantification of trace radioactive krypton-85 (<span>(^{85})</span>Kr) is essential for low-background experiments, particularly for next-generation searches of galactic dark matter and neutrino physics using xenon-based time projection chambers (TPCs). While the rare gas mass spectrometer (RGMS) represents the current state-of-the-art for krypton detection in the field, we are developing a fully automated system (Auto-RGMS) to overcome the limitations of its manual operation. Auto-RGMS incorporates a robust control system for rapid measurements and minimized systematic uncertainties. A primary goal is to reach detection limits in the low parts-per-quadrillion (ppq) range for natural krypton by improving the chromatography stage to enhance the separation of krypton from xenon. Investigations into various adsorbent materials identified two candidates. HayeSep Q offers a 12-fold improvement in chromatographic resolution for xenon/krypton separation compared to the previously used adsorbent. Alternatively, HayeSep D provides a more limited improvement in resolution while allowing a higher measurement frequency because of its moderate retention-induced contamination after each measurement. By automating krypton assays and achieving ppq sensitivity, Auto-RGMS will be an indispensable tool for next-generation detectors, maximizing their scientific potential.</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 5","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14262-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Twisted Baker–Akhiezer function from determinants","authors":"A. Mironov,&nbsp;A. Morozov,&nbsp;A. Popolitov","doi":"10.1140/epjc/s10052-025-14297-5","DOIUrl":"10.1140/epjc/s10052-025-14297-5","url":null,"abstract":"<div><p>General description of eigenfunctions of integrable Hamiltonians associated with the integer rays of Ding–Iohara–Miki (DIM) algebra, is provided by the theory of Chalykh Baker–Akhiezer functions (BAF) defined as solutions to a simply looking linear system. Solutions themselves are somewhat complicated, but much simpler than they could. It is because of simultaneous partial factorization of all the determinants, entering Cramer’s rule. This is a conspiracy responsible for a relative simplicity of the Macdonald polynomials and of the Noumi–Shirashi functions, and it is further continued to all integer DIM rays. Still, factorization is only partial, moreover, there are different branches and abrupt jumps between them. We explain this feature of Cramer’s rule in an example of a matrix that defines BAF and exhibits a non-analytical dependence on parameters. Moreover, the matrix is such that there is no natural expansion around non-degenerate approximations, which causes an unexpected complexity of formulas.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 5","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14297-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A joint analysis of strong lensing and type Ia supernovae to determine the Hubble constant","authors":"L. R. Colaço,&nbsp;R. F. L. Holanda,&nbsp;Z. C. Santana,&nbsp;R. Silva","doi":"10.1140/epjc/s10052-025-14315-6","DOIUrl":"10.1140/epjc/s10052-025-14315-6","url":null,"abstract":"<div><p>We present a cosmological model-independent determination of the Hubble constant, <span>(H_0)</span>, by combining time-delay measurements from seven TDCOSMO systems, Einstein radius measurements, and type Ia supernovae data sourced from the Pantheon+ sample. For each lens of time-delay system, we calculate the angular diameter distance <span>(D_{A_l})</span> using the product <span>(D^{text {Obs}}(z_l) cdot D_{A,Delta t}^{text {Obs}}(z_l, z_s))</span>, where <span>(D^{text {Obs}}(z_l))</span> is reconstructed via Gaussian Processes from 99 Einstein radius measurements, and <span>(D_{A,Delta t}^{text {Obs}}(z_l,z_s))</span> is the time-delay angular distance. We also reconstruct the unanchored luminosity distance <span>(H_0 D_L(z_l))</span> from supernova data. By using the cosmic distance duality relation validity, we anchor <span>(D_{A_l})</span> and <span>(H_0 D_L(z_l))</span> to infer <span>(H_0 = 70.55 pm 7.44)</span> km/s/Mpc (68% CL). Our result, though not resolving the Hubble tension, offers a cosmological model-independent consistency check and highlights the potential of using strong lensing and supernovae data via the cosmic distance duality relation to constrain <span>(H_0)</span>.\u0000</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 5","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14315-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of tin oxide coating on physical properties of silver nanowire transparent conductive electrodes","authors":"Thi Hong Nhung Nguyen,&nbsp;Ba Hoang Anh Luu,&nbsp;Sy Hieu Pham,&nbsp;Thi Thu Hien Nguyen,&nbsp;Quoc Hoan Tran,&nbsp;Anh Tuan Pham,&nbsp;Thi Lan Nguyen,&nbsp;Duy Cuong Nguyen","doi":"10.1007/s00339-025-08628-2","DOIUrl":"10.1007/s00339-025-08628-2","url":null,"abstract":"<div><p>Thin SnO₂ layers were coated on the surface of silver nanowire transparent conductive electrodes (AgNW TCEs) by atmospheric pressure atomic layer deposition. After coating, the AgNWs have been fully covered on their surface with a layer of SnO₂, and they are connected to the surface of the substrate. The sheet resistance sharply decreased from 170.86 Ω/□ to 20.09 Ω/□, while the transmittance reduced from 93.08 to 71.67%. The Joule-heating temperature of the transparent electrode increased from 117 °C to 251 °C. The best AgNW TCE was observed at 100 cycle SnO₂ coating with a sheet resistance of 20.09 Ω/□, transmittance of 88.91%, and figure of merit of 155.03. The adhesion of silver nanowires to the substrate significantly increased after coating SnO₂. Results indicate that the SnO₂ coating on the surface of AgNWs by atomic layer deposition is a highly attractive approach for improving the performance of AgNW TCEs.</p></div>","PeriodicalId":473,"journal":{"name":"Applied Physics A","volume":"131 6","pages":""},"PeriodicalIF":2.5,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Search for (tbar{t}H/A rightarrow tbar{t}tbar{t}) production in proton–proton collisions at (sqrt{s}=13) (text {TeV}) with the ATLAS detector","authors":"ATLAS Collaboration","doi":"10.1140/epjc/s10052-025-14041-z","DOIUrl":"10.1140/epjc/s10052-025-14041-z","url":null,"abstract":"<div><p>A search is presented for a heavy scalar (<i>H</i>) or pseudo-scalar (<i>A</i>) predicted by the two-Higgs-doublet models, where the <i>H</i>/<i>A</i> is produced in association with a top-quark pair <span>((tbar{t}H/A),)</span> and with the <i>H</i>/<i>A</i> decaying into a <span>(tbar{t})</span> pair. The full LHC Run 2 proton–proton collision data collected by the ATLAS experiment is used, corresponding to an integrated luminosity of <span>(139~text {fb}^{-1}.)</span> Events are selected requiring exactly one or two opposite-charge electrons or muons. Data-driven corrections are applied to improve the modelling of the <span>(tbar{t})</span>+jets background in the regime with high jet and <i>b</i>-jet multiplicities. These include a novel multi-dimensional kinematic reweighting based on a neural network trained using data and simulations. An <i>H</i>/<i>A</i>-mass parameterised graph neural network is trained to optimise the signal-to-background discrimination. In combination with the previous search performed by the ATLAS Collaboration in the multilepton final state, the observed upper limits on the <span>(tbar{t}H/A rightarrow tbar{t}tbar{t})</span> production cross-section at 95% confidence level range between 14 fb and 5.0 fb for an <i>H</i>/<i>A</i> with mass between 400 <span>(text {GeV})</span> and 1000 <span>(text {GeV})</span>, respectively. Assuming that both the <i>H</i> and <i>A</i> contribute to the <span>(tbar{t}tbar{t})</span> cross-section, <span>(tan beta )</span> values below 1.7 or 0.7 are excluded for a mass of 400 <span>(text {GeV})</span> or 1000 <span>(text {GeV})</span>, respectively. The results are also used to constrain a model predicting the pair production of a colour-octet scalar, with the scalar decaying into a <span>(tbar{t})</span> pair.</p></div>","PeriodicalId":788,"journal":{"name":"The European Physical Journal C","volume":"85 5","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1140/epjc/s10052-025-14041-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Transport properties of Si ions moving through He gas","authors":"Syham Lias,&nbsp;Larry Viehland,&nbsp;Meriem Haine","doi":"10.1140/epjd/s10053-025-00999-8","DOIUrl":"10.1140/epjd/s10053-025-00999-8","url":null,"abstract":"<div><p>In this study, we revisit the mobility and diffusion coefficients of Si⁺ ions in their ground ²P state moving in helium gas using quantum–mechanical transport cross sections. We have built the Si⁺-He potential from reliable and very recent energy points. These data points used in our construction are smoothly connected to adequate long- and short-range shapes, and calculations of classical cross section coefficients are also calculated. For the first time, we report transport coefficients for Si⁺(²P) across a wide range of reduced fields (10–1000 Td) and temperatures (100–500 K), achieving uncertainties of &lt; 3% (low T) and &lt; 5% (high T). While prior theoretical studies (Tuttle et al. in Mol Phys 115:437, 2017; Davies et al. in Phys Chem Chem Phys 24:7144, 2022) could not resolve whether the ²P_3/2 or ²P state aligns with experimental mobility data (Fahey et al. in J Chem Phys 75:669, 1981), our results demonstrate that neither the ²P ground state nor its substates reproduce Fahey’s measurements within experimental uncertainty (± 5%). The discrepancy (8–12% at E/N &lt; 50 Td) arises from quantum resonances in the momentum-transfer cross section (see Fig. 7, inset), which are absent in classical models. We corroborate Viehland’s hypothesis (Viehland et al. in Int J Ion Mobil Spectrom 20:95, 2017) that the low-pressure conditions (0.25–0.45 Torr) in Fahey’s experiment suppressed collisional excitation, favoring a non-statistical population of spin–orbit states. These findings challenge assumptions about ion–neutral interactions at low energies and underscore the need for state-resolved experiments.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":789,"journal":{"name":"The European Physical Journal D","volume":"79 5","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A study on the effect of neutron excess on compound and non-compound nuclear reaction cross sections at above barrier energies","authors":"Rajesh K. Sahoo,&nbsp;Dharmendra Singh,&nbsp;Amritraj Mahato,&nbsp;Pankaj K. Giri,&nbsp;Nitin Sharma,&nbsp;Lupteindu Chhura,&nbsp;Rahul Mahato,&nbsp;Sneha B. Linda,&nbsp;Harish Kumar,&nbsp;Suhail A. Tali,&nbsp;Rahbar Ali,&nbsp;M. Afzal Ansari,&nbsp;R. Kumar,&nbsp;S. Muralithar,&nbsp;R. P. Singh","doi":"10.1140/epja/s10050-025-01584-8","DOIUrl":"10.1140/epja/s10050-025-01584-8","url":null,"abstract":"<div><p>The excitation functions for the evaporation residues populated in the <span>(^{18})</span>O + <span>(^{154})</span>Sm system has been measured at above-barrier energies (<span>(approx )</span> 3–6 MeV/nucleon) using offline <span>(gamma )</span>-ray spectrometry. A comparison of these measured excitation functions with the statistical model code PACE-4 reveals the involvement of non-compound nuclear reactions in the population of some residues, particularly for those populated via <span>(alpha )</span> emission channels. To further explore fusion dynamics, a systematic analysis was carried out using the Universal Fusion Function framework. This analysis included compound nuclear fusion cross sections for 25 different systems induced by <span>(^{12,13})</span>C and <span>(^{16,18})</span>O projectiles. The experimental observations reveal a more substantial suppression of CNF cross sections in <span>(^{18})</span>O induced reactions as compared to those involving <span>(^{16})</span>O. Conversely, a lesser degree of fusion suppression was observed for <span>(^{13})</span>C projectile induced reactions, relative to those with <span>(^{12})</span>C. Furthermore, significant variations in the <span>(alpha )</span>-separation energy (<span>(textrm{Q}_{alpha })</span>) were found to correlate with changes in the projectile’s neutron-to-proton (N/Z) ratio. These observations suggest that the presence of additional neutrons not only modifies the interaction potential but also affects the internal nuclear structure of the projectile. Such structural modifications appear to enhance the probability of non-compound nuclear reactions in <span>(^{18})</span>O induced reactions as compare to <span>(^{13})</span>C.</p></div>","PeriodicalId":786,"journal":{"name":"The European Physical Journal A","volume":"61 5","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144140090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}