arXiv - PHYS - Nuclear Experiment最新文献

{"title":"First Measurement of Deeply Virtual Compton Scattering on the Neutron with Detection of the Active Neutron","authors":"A. Hobart, S. Niccolai, M. Čuić, K. Kumerički, P. Achenbach, J. S. Alvarado, W. R. Armstrong, H. Atac, H. Avakian, L. Baashen, N. A. Baltzell, L. Barion, M. Bashkanov, M. Battaglieri, B. Benkel, F. Benmokhtar, A. Bianconi, A. S. Biselli, S. Boiarinov, M. Bondi, W. A. Booth, F. Bossù, K. -Th. Brinkmann, W. J. Briscoe, W. K. Brooks, S. Bueltmann, V. D. Burkert, T. Cao, R. Capobianco, D. S. Carman, P. Chatagnon, G. Ciullo, P. L. Cole, M. Contalbrigo, A. D'Angelo, N. Dashyan, R. De Vita, M. Defurne, A. Deur, S. Diehl, C. Dilks, C. Djalali, R. Dupre, H. Egiyan, A. El Alaoui, L. El Fassi, L. Elouadrhiri, S. Fegan, A. Filippi, C. Fogler, K. Gates, G. Gavalian, G. P. Gilfoyle, D. Glazier, R. W. Gothe, Y. Gotra, M. Guidal, K. Hafidi, H. Hakobyan, M. Hattawy, F. Hauenstein, D. Heddle, M. Holtrop, Y. Ilieva, D. G. Ireland, E. L. Isupov, H. Jiang, H. S. Jo, K. Joo, T. Kageya, A. Kim, W. Kim, V. Klimenko, A. Kripko, V. Kubarovsky, S. E. Kuhn, L. Lanza, M. Leali, S. Lee, P. Lenisa, X. Li, I. J. D. MacGregor, D. Marchand, V. Mascagna, M. Maynes, B. McKinnon, Z. E. Meziani, S. Migliorati, R. G. Milner, T. Mineeva, M. Mirazita, V. Mokeev, C. Muñoz Camacho, P. Nadel-Turonski, P. Naidoo, K. Neupane, G. Niculescu, M. Osipenko, P. Pandey, M. Paolone, L. L. Pappalardo, R. Paremuzyan, E. Pasyuk, S. J. Paul, W. Phelps, N. Pilleux, M. Pokhrel, S. Polcher Rafael, J. Poudel, J. W. Price, Y. Prok, T. Reed, J. Richards, M. Ripani, J. Ritman, P. Rossi, A. A. Golubenko, C. Salgado, S. Schadmand, A. Schmidt, Marshall B. C. Scott, E. M. Seroka, Y. G. Sharabian, E. V. Shirokov, U. Shrestha, N. Sparveris, M. Spreafico, S. Stepanyan, I. I. Strakovsky, S. Strauch, J. A. Tan, N. Trotta, R. Tyson, M. Ungaro, S. Vallarino, L. Venturelli, V. Tommaso, H. Voskanyan, E. Voutier, D. P Watts, X. Wei, R. Williams, M. H. Wood, L. Xu, N. Zachariou, J. Zhang, Z. W. Zhao, M. Zurek","doi":"arxiv-2406.15539","DOIUrl":"https://doi.org/arxiv-2406.15539","url":null,"abstract":"Measuring Deeply Virtual Compton Scattering on the neutron is one of the\u0000necessary steps to understand the structure of the nucleon in terms of\u0000Generalized Parton Distributions (GPDs). Neutron targets play a complementary\u0000role to transversely polarized proton targets in the determination of the GPD\u0000$E$. This poorly known and poorly constrained GPD is essential to obtain the\u0000contribution of the quarks' angular momentum to the spin of the nucleon. DVCS\u0000on the neutron was measured for the first time selecting the exclusive final\u0000state by detecting the neutron, using the Jefferson Lab longitudinally\u0000polarized electron beam, with energies up to 10.6 GeV, and the CLAS12 detector.\u0000The extracted beam-spin asymmetries, combined with DVCS observables measured on\u0000the proton, allow a clean quark-flavor separation of the imaginary parts of the\u0000GPDs $H$ and $E$.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"203 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141520866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dihadron Azimuthal Correlations in Deep-Inelastic Scattering Off Nuclear Targets","authors":"CLAS Collaboration","doi":"arxiv-2406.14387","DOIUrl":"https://doi.org/arxiv-2406.14387","url":null,"abstract":"We measured the nuclear dependence of the di-pion azimuthal correlation\u0000function in deep-inelastic scattering (DIS) using the CEBAF Large Acceptance\u0000Spectrometer (CLAS) and a 5 GeV electron beam. As the nuclear-target size\u0000increases, transitioning from deuterium to carbon, iron, and lead, the\u0000correlation function broadens monotonically. Its shape exhibits a significant\u0000dependence on kinematics, including the transverse momentum of the pions and\u0000the difference in their rapidity. None of the various Monte-Carlo event\u0000generators we evaluated could fully replicate the observed correlation\u0000functions and nuclear effects throughout the entire phase space. As the first\u0000study of its kind in DIS experiments, this research provides an important\u0000baseline for enhancing our understanding of the interplay between the nuclear\u0000medium and the hadronization process in hadron production.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141507887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Direct neutrino-mass measurement based on 259 days of KATRIN data","authors":"M. Aker, D. Batzler, A. Beglarian, J. Behrens, J. Beisenkötter, M. Biassoni, B. Bieringer, Y. Biondi, F. Block, S. Bobien, M. Böttcher, B. Bornschein, L. Bornschein, T. S. Caldwell, M. Carminati, A. Chatrabhuti, S. Chilingaryan, B. A. Daniel, K. Debowski, M. Descher, D. Díaz Barrero, P. J. Doe, O. Dragoun, G. Drexlin, F. Edzards, K. Eitel, E. Ellinger, R. Engel, S. Enomoto, A. Felden, C. Fengler, C. Fiorini, J. A. Formaggio, C. Forstner, F. M. Fränkle, K. Gauda, A. S. Gavin, W. Gil, F. Glück, S. Grohmann, R. Grössle, R. Gumbsheimer, N. Gutknecht, V. Hannen, L. Hasselmann, N. Haußmann, K. Helbing, H. Henke, S. Heyns, S. Hickford, R. Hiller, D. Hillesheimer, D. Hinz, T. Höhn, A. Huber, A. Jansen, C. Karl, J. Kellerer, K. Khosonthongkee, M. Kleifges, M. Klein, J. Kohpeiß, C. Köhler, L. Köllenberger, A. Kopmann, N. Kovač, A. Kovalík, H. Krause, L. La Cascio, T. Lasserre, J. Lauer, T. Le, O. Lebeda, B. Lehnert, G. Li, A. Lokhov M. Machatschek, M. Mark, A. Marsteller, E. L. Martin, C. Melzer, S. Mertens, S. Mohanty, J. Mostafa, K. Müller, A. Nava, H. Neumann, S. Niemes, A. Onillon, D. S. Parno, M. Pavan, U. Pinsook, A. W. P. Poon, J. M. Lopez Poyato, S. Pozzi, F. Priester, J. Ráliš, S. Ramachandran, R. G. H. Robertson, C. Rodenbeck, M. Röllig, C. Röttele, M. Ryšavý, R. Sack, A. Saenz, R. Salomon, P. Schäfer, M. Schlösser, K. Schlösser, L. Schlüter, S. Schneidewind, U. Schnurr, M. Schrank, J. Schürmann, A. Schütz, A. Schwemmer, A. Schwenck, M. Šefčík, D. Siegmann, F. Simon, F. Spanier, D. Spreng, W. Sreethawong, M. Steidl, J. Štorek, X. Stribl, M. Sturm, N. Suwonjandee, N. Tan Jerome, H. H. Telle, L. A. Thorne, T. Thümmler, S. Tirolf, N. Titov, I. Tkachev, K. Urban, K. Valerius, D. Vénos, C. Weinheimer, S. Welte, J. Wendel, C. Wiesinger, J. F. Wilkerson, J. Wolf, S. Wüstling, J. Wydra, W. Xu, S. Zadorozhny, G. Zeller","doi":"arxiv-2406.13516","DOIUrl":"https://doi.org/arxiv-2406.13516","url":null,"abstract":"The fact that neutrinos carry a non-vanishing rest mass is evidence of\u0000physics beyond the Standard Model of elementary particles. Their absolute mass\u0000bears important relevance from particle physics to cosmology. In this work, we\u0000report on the search for the effective electron antineutrino mass with the\u0000KATRIN experiment. KATRIN performs precision spectroscopy of the tritium\u0000$beta$-decay close to the kinematic endpoint. Based on the first five\u0000neutrino-mass measurement campaigns, we derive a best-fit value of $m_nu^{2} =\u0000{-0.14^{+0.13}_{-0.15}}~mathrm{eV^2}$, resulting in an upper limit of $m_nu <\u0000{0.45}~mathrm{eV}$ at 90 % confidence level. With six times the statistics of\u0000previous data sets, amounting to 36 million electrons collected in 259\u0000measurement days, a substantial reduction of the background level and improved\u0000systematic uncertainties, this result tightens KATRIN's previous bound by a\u0000factor of almost two.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141531539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measurement of Spin-Density Matrix Elements in $Δ^{++}(1232)$ photoproduction","authors":"F. Afzal, C. S. Akondi, M. Albrecht, M. Amaryan, S. Arrigo, V. Arroyave, A. Asaturyan, A. Austregesilo, Z. Baldwin, F. Barbosa, J. Barlow, E. Barriga, R. Barsotti, D. Barton, V. Baturin, V. V. Berdnikov, T. Black, W. Boeglin, M. Boer, W. J. Briscoe, T. Britton, S. Cao, E. Chudakov, G. Chung, P. L. Cole, O. Cortes, V. Crede, M. M. Dalton, D. Darulis, A. Deur, S. Dobbs, A. Dolgolenko, M. Dugger, R. Dzhygadlo, D. Ebersole, M. Edo, H. Egiyan, T. Erbora, P. Eugenio, A. Fabrizi, C. Fanelli, S. Fang, J. Fitches, A. M. Foda, S. Furletov, L. Gan, H. Gao, A. Gardner, A. Gasparian, D. Glazier, C. Gleason, V. S. Goryachev, B. Grube, J. Guo, L. Guo, J. Hernandez, K. Hernandez, N. D. Hoffman, D. Hornidge, G. Hou, P. Hurck, A. Hurley, W. Imoehl, D. G. Ireland, M. M. Ito, I. Jaegle, N. S. Jarvis, T. Jeske, M. Jing, R. T. Jones, V. Kakoyan, G. Kalicy, V. Khachatryan, C. Kourkoumelis, A. LaDuke, I. Larin, D. Lawrence, D. I. Lersch, H. Li, B. Liu, K. Livingston, G. J. Lolos, L. Lorenti, V. Lyubovitskij, R. Ma, D. Mack, A. Mahmood, H. Marukyan, V. Matveev, M. McCaughan, M. McCracken, C. A. Meyer, R. Miskimen, R. E. Mitchell, K. Mizutani, V. Neelamana, L. Ng, E. Nissen, S. Orešić, A. I. Ostrovidov, Z. Papandreou, C. Paudel, R. Pedroni, L. Pentchev, K. J. Peters, E. Prather, S. Rakshit, J. Reinhold, A. Remington, B. G. Ritchie, J. Ritman, G. Rodriguez, D. Romanov, K. Saldana, C. Salgado, S. Schadmand, A. M. Schertz, K. Scheuer, A. Schick, A. Schmidt, R. A. Schumacher, J. Schwiening, N. Septian, P. Sharp, X. Shen, M. R. Shepherd, J. Sikes, A. Smith, E. S. Smith, D. I. Sober, A. Somov, S. Somov, J. R. Stevens, I. I. Strakovsky, B. Sumner, K. Suresh, V. V. Tarasov, S. Taylor, A. Teymurazyan, A. Thiel, T. Viducic, T. Whitlatch, N. Wickramaarachchi, Y. Wunderlich, B. Yu, J. Zarling, Z. Zhang, X. Zhou, B. Zihlmann","doi":"arxiv-2406.12829","DOIUrl":"https://doi.org/arxiv-2406.12829","url":null,"abstract":"We report the measurement of spin-density matrix elements of the\u0000$Delta^{++}(1232)$ in the photoproduction reaction $gamma p to\u0000pi^-Delta^{++}(1232)$ with the GlueX experiment in Hall D at Jefferson Lab.\u0000The measurement used a linearly polarized photon beam with\u0000$E_gamma=8.2-8.8$~GeV and the statistical precision exceeds the previous\u0000measurement from SLAC by three orders of magnitude for the momentum transfer\u0000squared region $-t < 1.4$ GeV$^2$. The data are sensitive to the previously\u0000undetermined relative sign between couplings in existing Regge exchange models.\u0000Linear combinations of the extracted SDMEs allow for a decomposition into\u0000natural and unnatural exchange amplitudes, which shows that the unnatural\u0000exchange plays an important role in the low $-t$ region.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141521027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photoproduction of J/$ψ$ and dileptons in Pb-Pb collisions with nuclear overlap","authors":"Nicolas Bizéfor the ALICE collaboration","doi":"arxiv-2406.12630","DOIUrl":"https://doi.org/arxiv-2406.12630","url":null,"abstract":"Photon-photon reactions and the production of J/$psi$ meson through\u0000photonuclear reactions have been extensively studied in ultra-peripheral\u0000heavy-ion collisions, in which the impact parameter is larger than twice the\u0000nuclear radius. In recent years, coherently photoproduced J/$psi$ and dilepton\u0000production via photon-photon interactions have also been observed in\u0000nucleus-nucleus (A-A) collisions with nuclear overlap. The former can help to\u0000constrain the nuclear gluon distributions at low Bjorken-$x$ and high energy,\u0000while the latter could be used to further map the electromagnetic fields\u0000produced in heavy-ion collisions. In addition, these measurements can shed\u0000light on the theory behind photon-induced reactions in A-A collisions with\u0000nuclear overlap, including possible interactions of the measured probes with\u0000the formed and fast expanding quark-gluon plasma. Since the produced quarkonium\u0000is expected to keep the polarization of the incoming photon due to $s$-channel\u0000helicity conservation, the photoproduction origin of the J/$psi$ yield excess\u0000at very low transverse momentum, $p_{rm T}$, can be confirmed by the\u0000measurement of the J/$psi$ polarization. The ALICE detector can perform\u0000quarkonium production measurements at both mid ($|y|<0.9$) and forward\u0000($2.5<y<4$) rapidities down to $p_{rm T} = 0$. In the following, the new ALICE\u0000measurements of the J/$psi$ $y$-differential cross section and the first\u0000polarization results of coherently photoproduced J/$psi$ via the dimuon decay\u0000channel at forward rapidity in Pb-Pb collisions at $sqrt{s_{NN}}=$ 5.02 TeV\u0000are reported. Additionally, the measurement of an excess with respect to\u0000expectations from hadronic production in the dielectron yield, at low mass and\u0000$p_{rm T}$, at midrapidity in Pb-Pb collisions at $sqrt{s_{NN}}=$ 5.02~TeV,\u0000is presented. The results are compared with available theoretical models.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141521029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polarized internal target experiments based on EIC beams","authors":"B. Wojtsekhowski","doi":"arxiv-2406.11480","DOIUrl":"https://doi.org/arxiv-2406.11480","url":null,"abstract":"The Electron-Ion Collider is under construction at BNL. It will have\u0000high-energy high-intensity polarized beams of electrons and hadrons. These\u0000beams will allow a high accuracy investigation of nucleon structure in the low-\u0000to very-low-x DIS regime. At the same time, similar to the realization at HERA,\u0000these beams could be used with an internal target for a very productive\u0000investigation of medium- to high-x nucleon structure. Due to a novel regime of\u0000electron beam operation and its high polarization and intensity, the\u0000Figure-of-Merit of an internal target experiment at EIC will be 500+ times\u0000higher than was obtained by HERMES.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"75 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measurement of $J/ψ$ and $ψleft(2Sright)$ production in $p+p$ and $p+d$ interactions at 120 GeV","authors":"C. H. Leung, K. Nagai, K. Nakano, D. Nawarathne, J. Dove, S. Prasad, N. Wuerfel, C. A. Aidala, J. Arrington, C. Ayuso, C. L. Barker, C. N. Brown, W. C. Chang, A. Chen, D. C. Christian, B. P. Dannowitz, M. Daugherity, L. El Fassi, D. F. Geesaman, R. Gilman, Y. Goto, R. Guo, T. J. Hague, R. J. Holt, M. F. Hossain, D. Isenhower, E. Kinney, A. Klein, D. W. Kleinjan, Y. Kudo, P. -J. Lin, K. Liu, M. X. Liu, W. Lorenzon, R. E. McClellan, P. L. McGaughey, M. M. Medeiros, Y. Miyachi, S. Miyasaka, D. H. Morton, K. Nakahara, S. Nara, S. F. Pate, J. C. Peng, A. Pun, B. J. Ramson, P. E. Reimer, J. G. Rubin, F. Sanftl, S. Sawada, T. Sawada, M. B. C. Scott, T. -A. Shibata, A. S. Tadepalli, M. Teo, R. S. Towell, S. Uemura, S. G. Wang, A. B. Wickes, J. Wu, Z. H. Ye","doi":"arxiv-2406.11459","DOIUrl":"https://doi.org/arxiv-2406.11459","url":null,"abstract":"We report the $p+p$ and $p+d$ differential cross sections measured in the\u0000SeaQuest experiment for $J/psi$ and $psileft(2Sright)$ production at 120\u0000GeV beam energy covering the forward $x$-Feynman ($x_F$) range of $0.5 < x_F\u0000<0.9$. The measured cross sections are in good agreement with theoretical\u0000calculations based on the nonrelativistic QCD (NRQCD) using the long-distance\u0000matrix elements deduced from a recent global analysis of proton- and\u0000pion-induced charmonium production data. The $sigma_{psileft(2Sright)} /\u0000sigma_{J/psi}$ cross section ratios are found to increase as $x_F$ increases,\u0000indicating that the $q bar{q}$ annihilation process has larger contributions\u0000in the $psileft(2Sright)$ production than the $J/psi$ production. The\u0000$sigma_{pd}/2sigma_{pp}$ cross section ratios are observed to be\u0000significantly different for the Drell-Yan process and $J/psi$ production,\u0000reflecting their different production mechanisms. We find that the\u0000$sigma_{pd}/2sigma_{pp}$ ratios for $J/psi$ production at the forward $x_F$\u0000region are sensitive to the $bar{d}/ bar{u}$ flavor asymmetry of the proton\u0000sea, analogous to the Drell-Yan process. The transverse momentum ($p_T$)\u0000distributions for $J/psi$ and $psileft(2Sright)$ production are also\u0000presented and compared with data collected at higher center-of-mass energies.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"53 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141520932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental studies of the three nucleon system dynamics in the proton induced deuteron breakup at 108 MeV","authors":"A. Łobejko, E. Stephan, I. Ciepał, J. Golak, N. Kalantar--Nayestanaki, S. Kistryn, B. Kłos, A. Kozela, P. Kulessa, W. Parol, R. Skibiński, I. Skwira-Chalot, A. Szadziński, A. Wilczek, H. Witała, B. Włoch, J. Zejma","doi":"arxiv-2407.01582","DOIUrl":"https://doi.org/arxiv-2407.01582","url":null,"abstract":"The differential cross sections for the $^2$H(p,pp)n reaction have been\u0000measured for 84 angular configurations of the outgoing protons in the range of\u0000polar angles from 13 to 33 degrees with a proton beam of 108 MeV. Data have\u0000been collected in the Cyclotron Center Bronowice (CCB) at the Institute of\u0000Nuclear Physics PAS in Cracow, using the BINA detector setup. Analysis leading\u0000to determination of the breakup cross section values is described. Absolute\u0000normalization is obtained by normalization to the simultaneously measured\u0000$^2$H(p,d)p scattering events.Experimental results are compared to the\u0000state-of-the-art theoretical calculations. Global analysis shows significant\u0000influence of the Coulomb interaction and small effects of three nucleon force\u0000in the studied phase space region.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"abs/2107.10606 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141521032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An experimental search for an explanation of the difference between beam and bottle neutron lifetime measurements","authors":"M. F. Blatnik, L. S. Blokland, N. Callahan, J. H. Choi, S. Clayton, C. B Cude-Woods, B. W. Filippone, W. R. Fox, E. Fries, P. Geltenbort, F. M. Gonzalez, L. Hayen, K. P. Hickerson, A. T. Holley, T. M. Ito, A. Komives, S Lin, Chen-Yu Liu, M. F. Makela, C. L. Morris, R. Musedinovic, C. M. O'Shaughnessy, R. W. Pattie Jr., J. C. Ramsey, D. J. Salvat, A. Saunders, S. J. Seestrom, E. I. Sharapov, M. Singh, Z. Tang, W. F. Uhrich, J. Vanderwerp, P. Walstrom, Z. Wang, A. R. Young","doi":"arxiv-2406.10378","DOIUrl":"https://doi.org/arxiv-2406.10378","url":null,"abstract":"The past two decades have yielded several new measurements and reanalysis of\u0000older measurements of the neutron lifetime. These have led to a 4.4 standard\u0000deviation discrepancy between the most precise measurements of the neutron\u0000decay rate producing protons in cold neutron beams and the most precise\u0000lifetime measured in neutron storage experiments. Here we publish an analysis\u0000of the recently published UCN aimed a searching for an explanation of this\u0000difference using the model proposed by Koch and Hummel.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141521034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Final Search for Short-Baseline Neutrino Oscillations with the PROSPECT-I Detector at HFIR","authors":"M. Andriamirado, B. Balantekin, C. D. Bass, O. Benevides Rodrigues, E. P. Bernard, N. S. Bowden, C. D. Bryan, R. Carr, T. Classen, A. J. Conant, G. Deichert, M. J. Dolinski, A. Erickson, A. Galindo-Uribarri, S. Gokhale, C. Grant, S. Hans, A. B. Hansell, K. M. Heeger, B. Heffron, D. E. Jaffe, S. Jayakumar, J. R. Koblanski, P. Kunkle, C. E. Lane, B. R. Littlejohn, A. Lozano Sanchez, X. Lu, F. Machado, J. Maricic, M. P. Mendenhall, A. M. Meyer, R. Milincic, P. E. Mueller, H. Mumm, R. Neilson, X. Qian, C. Roca, R. Rosero, P. Surukuchi, F. Sutanto, D. Venegas-Vargas, P. B. Weatherly, J. Wilhelmi, M. Yeh, C. Zhang, X. Zhang","doi":"arxiv-2406.10408","DOIUrl":"https://doi.org/arxiv-2406.10408","url":null,"abstract":"The PROSPECT experiment is designed to perform precise searches for\u0000antineutrino disappearance at short distances (7 - 9~m) from compact nuclear\u0000reactor cores. This Letter reports results from a new neutrino oscillation\u0000analysis performed using the complete data sample from the PROSPECT-I detector\u0000operated at the High Flux Isotope Reactor in 2018. The analysis uses a\u0000multi-period selection of inverse beta decay neutrino interactions with reduced\u0000backgrounds and enhanced statistical power to set limits on electron-flavor\u0000disappearance caused by mixing with sterile neutrinos with 0.2 - 20 eV$^2$ mass\u0000splittings. Inverse beta decay positron energy spectra from six different\u0000reactor-detector distance ranges are found to be statistically consistent with\u0000one another, as would be expected in the absence of sterile neutrino\u0000oscillations. The data excludes at 95% confidence level the existence of\u0000sterile neutrinos in regions above 3~eV$^2$ previously unexplored by\u0000terrestrial experiments, including all space below 10~eV$^2$ suggested by the\u0000recently strengthened Gallium Anomaly. The best-fit point of the Neutrino-4\u0000reactor experiment's claimed observation of short-baseline oscillation is ruled\u0000out at more than five standard deviations.","PeriodicalId":501206,"journal":{"name":"arXiv - PHYS - Nuclear Experiment","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141521031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}