Proton Source Size Measurements in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>e</mml:mi><mml:mi>A</mml:mi><mml:mo>→</mml:mo><mml:msup><mml:mi>e</mml:mi><mml:mo>′</mml:mo></mml:msup><mml:mi>p</mml:mi><mml:mi>p</mml:mi><mml:mi>X</mml:mi></mml:math>Reaction

Stavinsky, A.; Mikhailov, K.; Lednický, R.; Vlassov, A. V.; Adams, G. S.; Ambrozewich, P; Anciant, E.; Anghinolfi, M.; Asavapibhop, B.; Asryan, G.; Audit, G.; Auger, T.; Avakian, H.; Bagdasaryan, H.; Ball, J.; Barrow, S.; Batourine,; Battaglieri, M.; Beard, K.; Bektasoglu, M.; Bellis, M.; Benmouna, N.; Bianchi, N.; Biselli, A. S.; Boiarinov, S.; Bonner, B. E.; Bouchigny, S.; Bradford, R.; Branford, D.; Brooks, W. K.; Burkert, V. D.; Butuceanu, C.; Calarco,; Carman, D. S.; Cetina, C.; Chen, S; Cole, P. L.; Cords, D.; Coleman, Alan; Corvisiero, P.; Crabb, D.; Cummings, J. P.; Dashyan, N.; Sanctis, E. De; Vita, R. De; Degtyarenko, P. V.; Denizli, H.; Dennis, L.; Deur, A.; Dharmawardane, K. V.; Djalali, C.; Dodge, G. E.; Doughty, D.; Dragovitsch, P.; Dugger, M.; Dytman, S.; Dzyubak, O. P.; Egiyan, H.; Egiyan, K. S.; Elouadrhiri, L.; Empl, A.; Eugenio, P.; Fatemi, R.; Fersch, R.; Feuerbach, R. J.; Forest, T. A.; Funsten, H. O.; Garçon, M.; Gavalian, G.; Gilad, S.; Gilfoyle, G. P.; Giovanetti, K. L.; Girard, Pascal; Gordon, C. I O; Gothe, R.; Griffioen, K. A.; Guidal, M.; Guillo, M.; Guler, N.; Guo, L.; Gyurjyan,; Hadjidakis, C.; Hakobyan, R.; Hardie, J.; Heddle, D.; Hersman, F. W.; Hicks, K.; Hleiqawi, I.; Holtrop, M.; Hu, J. F.; Hyde‐Wright, C. E.; Ireland, D. G.; Ito, M. M.; Jenkins, D.; Joo, K.; Juengst, H. G.; Kelley, J. H.; Kellie, J. D.; Khandaker, M.; Kim, Do-Hyung; Ky, Kim; Kim, K; Kim, Ki Wook; Kim, W; Klein, A.; Klein, F. J.; Klimenko, A. V.; Klusman, M.; Kossov, M.; Kramer, L.; Kubarovski,; Kuhn, S. E.; Kühn, J.; Lachniet, J.; Laget, J. M.; Langheinrich, J.; Lawrence, D.; Leksin, G.A.; Lee, T; Li, J; Livingston, K.; Lukashin, K.; Manak, J. J.; Marchand, Claude; McAleer, S.; McNabb, J. W. C.; Mecking, B. A.; Mehrabyan, S.; Melone, J. J.; Mestayer,; Meyer, C. A.; Mirazita, M.; Miskimen, R.; Mokeev,; Morand, L.; Morrow, S. A.; Muccifora,; Muêller, J.; Mutchler, G. S.; Napolitano, J.; Nasseripour, R.; Nelson, S. O.; Niccolai, S.; Niculescu, G.; Niculescu, I.; Niczyporuk, B. B.; Niyazov, R. A.; Nozar, M.; O’Rielly, G. V.; Osipenko, M.; Ostrovidov, A. I.; Park, K; Pasyuk, E.; Peterson, G. A.; Philips, S. A.; Pivnyuk, N.; Počanić, D.; Pogorelko, O.; Polli, E.; Pozdniakov, S.; Preedom, B. M.; Price, J. W.; Prok, Y.; Protopopescu, D.; Qin, L. M.; Raue, B. A.; Riccardi, G.; Ricco, G.; Ripani, M.; Ritchie, Barry; Ronchetti, F.; Rosner, G.; Rossi, P.; Rowntree, D.; Rubin, P. D.; Sabatié, F.; Sabourov, K.; Salgado, C.; Santoro, J. P.; Sapunenko, V.; Schumacher, R. A.; Serov, V. S.; Sharabian, Y. G.; Shaw, J.; Simionatto, S.; Skabelin, A. V.; Smith, E. S.; Smith, L. C.; Sober, D. I.; Spraker, M.; Stepanyan, S.; Stepanyan, S.; Stokes, B. E.; Stoler, P.; Strakovsky,; Taiuti, M.; Taylor, S.; Tedeschi, D. J.; Thoma, U.; Thompson, R.; Tkabladze, A.; Todor, L.; Tur, C.; Ungaro, M.; Vineyard, M. F.; Vorobeyev, LS; Wang, K; Weinstein, L. B.; Weller, H.R.; Weygand, D. P.; Whisnant, C. S.; Williams, M.; Wolin, E.; Wood, M. H.; Yegneswaran, A.; Yun, Jaeseok; Zana, L.

doi:10.1103/physrevlett.93.192301

Cited by 21 publications

(4 citation statements)

References 37 publications

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“…This is also true for the measurement of opposite-sign pions or muons for which the combinatorial method has also been used in the past [96,97]. This method has also been used in the extraction of resonance signals [98] and proton femtoscopy of eA interactions [99]. The combinatorial background is determined by an event-mixing technique.…”

Section: Meson Structure Modificationmentioning

confidence: 99%

Medium Modifications of Hadron Properties and Partonic Processes

Strauch

Tsushima

2011

J. Phys.: Conf. Ser.

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Chiral symmetry is one of the most fundamental symmetries in QCD. It is closely connected to hadron properties in the nuclear medium via the reduction of the quark condensate , manifesting the partial restoration of chiral symmetry. To better understand this important issue, a number of Jefferson Lab experiments over the past decade have focused on understanding properties of mesons and nucleons in the nuclear medium, often benefiting from the high polarization and luminosity of the CEBAF accelerator. In particular, a novel, accurate, polarization transfer measurement technique revealed for the first time a strong indication that the bound proton electromagnetic form factors in 4 He may be modified compared to those in the vacuum. Second, the photoproduction of vector mesons on various nuclei has been measured via their decay to e + e − to study possible in-medium effects on the properties of the ρ meson. In this experiment, no significant mass shift and some broadening consistent with expected collisional broadening for the ρ meson has been observed, providing tight constraints on model calculations. Finally, processes involving in-medium parton propagation have been studied. The medium modifications of the quark fragmentation functions have been extracted with much higher statistical accuracy than previously possible. the density and temperature dependence of hadron properties in the nuclear medium. However, current simulations have just started to study the 2-body, nucleon-nucleon [2] and nucleonhyperon interactions [3], which is still very far from what is needed for the description of a finite nucleus. At present, although one is forced to rely on some models, it is a very important step to understand the main features of nuclear phenomena and the structure of finite nuclei based on the quark and gluon degrees of freedom [4].We know that explicit quark degrees of freedom are certainly necessary to understand deepinelastic scattering (DIS) at momentum transfers of several GeV. In particular, the nuclear EMC effect [5] has suggested that it is vital to include some dynamics beyond the conventional nucleon-meson treatment of nuclear physics to explain the nuclear structure function data [6,7]. This leads to the extraction of nuclear parton, or bound-nucleon parton distributions [8,9]. Inmedium structure functions were studied at Jefferson Lab in an EMC-type experiment in heavy nuclei, emphasizing the large-x region [10,11], and recently also in few-body nuclei [12,13]. Another series of Jefferson Lab experiments focus on the longitudinal-transverse separation of in-medium structure functions [14,15].Furthermore, the search for evidence of some modification of nucleon properties in medium has recently been extended to the nucleon electromagnetic form factors in polarized ( e, e ′ p) scattering experiments on 16 O [16, 17] and 4 He [18,19,20,21,22] nuclei at MAMI and Jefferson Lab. These experiments observed the double ratio of proton-recoil polarization transfer coefficients in the scattering off nuclei wit...

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Section: Meson Structure Modificationmentioning

confidence: 99%

Medium Modifications of Hadron Properties and Partonic Processes

Strauch

Tsushima

2011

J. Phys.: Conf. Ser.

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“…The rather moderate drop of the pp source size could be an effect of the decreasing N N cross section in this momentum region such that rescattering of protons becomes less important going to larger k T values which is reflected in smaller source sizes. Such a behaviour was also investigated in e(4.46 GeV)+A reactions [50].…”

Section: A Source Size Extractionmentioning

confidence: 91%

Λpinteraction studied via femtoscopy inp+Nbreactions ats
Adamczewski-Musch¹,
Agakishiev²,
Arnold³
et al. 2016
Phys. Rev. C
29
0
7
0
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We report on the first measurement of pΛ and pp correlations via the femtoscopy method in p+Nb reactions at √ sNN = 3.18 GeV, studied with the High Acceptance Di-Electron Spectrometer (HADES). By comparing the experimental correlation function to model calculations, a source size for pp pairs of r0,pp = 2.02 ± 0.01(stat) +0.11 −0.12 (sys) fm and a slightly smaller value for pΛ of r0,Λp = 1.62 ± 0.02(stat) +0.19 −0.08 (sys) fm is extracted. Using the geometrical extent of the particle emitting region, determined experimentally with pp correlations as reference together with a source function from a transport model, it is possible to study different sets of scattering parameters. The pΛ correlation is proven sensitive to predicted scattering length values from chiral effective field theory. We demonstrate that the femtoscopy technique can be used as valid alternative to the analysis of scattering data to study the hyperon-nucleon interaction.

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“…The e2a data sets detailed in section 5.8 were used, which were measured in 1999 and reported in many published analyses [202][203][204][205][206][207]. These include electron scattering events on 4 He, 12 C, and 56 Fe nuclei at beam energies of 1.159, 2.257 and 4.453 GeV.…”

Section: Electron Data Mining Analysismentioning

confidence: 99%

Lepton-Nucleus Scattering Measurements for Neutrino Interactions and Oscillations

Papadopoulou

2023

Preprint

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Currently running and forthcoming precision neutrino oscillation experiments aim to unambiguously determine the neutrino mass ordering, the charge-parity violating phase in the lepton sector and the possible existence of physics Beyond the Standard Model. To have an understanding of all the effects necessary for the success of these experiments, lepton-nucleus interactions must be modeled in unprecedented detail. With this thesis, expertise in both neutrino and electron cross-section modeling and analysis was leveraged in order to make fundamental and critical improvements to our understanding of these interactions. The outlined work takes a significant step towards this high-precision measurement era with three complementary approaches. Cross sections are reported using neutrino data sets from the MicroBooNE liquid argon time projection chamber detector at Fermi National Laboratory, as well as electron scattering data from the CLAS detector at Thomas Jefferson National Laboratory. Furthermore, the modeling development of the commonly used GENIE event generator is presented.First and foremost, my eternal gratitude goes to my advisor, Prof. Or Hen. Or has provided me with all the resources necessary to proceed in my academic career. I am also grateful to Prof. Lawrence Weinstein. Their guidance has been crucial in my formation as a physicist. I'm grateful to all the members of our group for their invaluable support and to all the MIT graduate students in my year. Many thanks to all the members of the MicroBooNE, "Electrons-For-Neutrinos", CLAS, GENIE, and GlueX collaborations for all their input and guidance. I'm also grateful to my entire family and all my friends for their continuous support and encouragement.

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Proton Source Size Measurements in theeA→e′ppXReaction

Cited by 21 publications

References 37 publications

Medium Modifications of Hadron Properties and Partonic Processes

Medium Modifications of Hadron Properties and Partonic Processes

Λpinteraction studied via femtoscopy inp+Nbreactions ats
Adamczewski-Musch¹,
Agakishiev²,
Arnold³
et al. 2016
Phys. Rev. C
29
0
7
0
View full text Add to dashboard Cite

Lepton-Nucleus Scattering Measurements for Neutrino Interactions and Oscillations

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Proton Source Size Measurements in theeA→e′ppXReaction

Cited by 21 publications

References 37 publications

Medium Modifications of Hadron Properties and Partonic Processes

Medium Modifications of Hadron Properties and Partonic Processes

Λpinteraction studied via femtoscopy inp+Nbreactions atsAdamczewski-Musch1, Agakishiev2, Arnold3 et al. 2016Phys. Rev. C29070View full textAdd to dashboardCite

Lepton-Nucleus Scattering Measurements for Neutrino Interactions and Oscillations

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Product

Resources

About

Λpinteraction studied via femtoscopy inp+Nbreactions ats
Adamczewski-Musch¹,
Agakishiev²,
Arnold³
et al. 2016
Phys. Rev. C
29
0
7
0
View full text Add to dashboard Cite