Comparing proton momentum distributions in A=2 and 3 nuclei via 2H 3H and 3He (e, e′ p) measurements

被引：15

作者：

Cruz-Torres, R. ^{[1
]}

Li, S. ^{[2
]}

Hauenstein, F. ^{[3
]}

Schmidt, A. ^{[1
]}

Nguyen, D. ^{[4
]}

Abrams, D. ^{[4
]}

Albataineh, H. ^{[5
]}

Alsalmi, S. ^{[6
]}

Androic, D. ^{[7
]}

Aniol, K. ^{[8
]}

Armstrong, W. ^{[9
]}

Arrington, J. ^{[9
]}

Atac, H. ^{[10
]}

Averett, T. ^{[11
]}

Gayoso, C. Ayerbe ^{[11
]}

Bai, X. ^{[4
]}

Bane, J. ^{[12
]}

Barcus, S. ^{[11
]}

Beck, A. ^{[1
]}

Bellini, V ^{[13
]}

Bhatt, H. ^{[14
]}

Bhetuwal, D. ^{[14
]}

Biswas, D. ^{[15
]}

Blyth, D. ^{[9
]}

Boeglin, W. ^{[16
]}

Bulumulla, D. ^{[3
]}

Camsonne, A. ^{[17
]}

Castellanos, J. ^{[16
]}

Chen, J-P ^{[17
]}

Cohen, E. O. ^{[18
]}

Covrig, S. ^{[17
]}

Craycraft, K. ^{[12
]}

Dongwi, B. ^{[15
]}

Duer, M. ^{[18
]}

Duran, B. ^{[10
]}

Dutta, D. ^{[14
]}

Fuchey, E. ^{[19
]}

Gal, C. ^{[4
]}

Gautam, T. N. ^{[15
]}

Gilad, S. ^{[1
]}

Gnanvo, K. ^{[4
]}

Gogami, T. ^{[20
]}

Gomez, J. ^{[17
]}

Gu, C. ^{[4
]}

Habarakada, A. ^{[15
]}

Hague, T. ^{[6
]}

Hansen, O. ^{[17
]}

Hattawy, M. ^{[9
]}

Hen, O. ^{[1
]}

Higinbotham, D. W. ^{[17
]}

机构：

[1] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[2] Univ New Hampshire, Durham, NH 03824 USA

[3] Old Dominion Univ, Norfolk, VA USA

[4] Univ Virginia, Charlottesville, VA USA

[5] Texas A&M Univ, Kingsville, TX USA

[6] Kent State Univ, Kent, OH 44242 USA

[7] Univ Zagreb, Zagreb, Croatia

[8] Calif State Univ Los Angeles, Los Angeles, CA 90032 USA

[9] Argonne Natl Lab, Phys Div, Lemont, IL USA

[10] Temple Univ, Philadelphia, PA 19122 USA

[11] Coll William & Mary, Williamsburg, VA USA

[12] Univ Tennessee, Knoxville, TN USA

[13] INFN, Sez Catania, Catania, Italy

[14] Mississippi State Univ, Miss State, MS USA

[15] Hampton Univ, Hampton, VA 23668 USA

[16] Florida Int Univ, Miami, FL 33199 USA

[17] Jefferson Lab, Newport News, VA USA

[18] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

[19] Univ Connecticut, Storrs, CT USA

[20] Tohoku Univ, Sendai, Miyagi, Japan

[21] Columbia Univ, New York, NY USA

[22] Cairo Univ, Cairo, Egypt

[23] Ohio Univ, Athens, OH 45701 USA

[24] SUNY Stony Brook, Stony Brook, NY 11794 USA

[25] Syracuse Univ, Syracuse, NY USA

[26] Nucl Res Ctr Negev, Beer Sheva, Israel

[27] Univ Regina, Regina, SK, Canada

[28] Michigan State Univ, Facil Rare Isotope Beams, E Lansing, MI 48824 USA

[29] Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA

[30] Univ Idaho, Dept Phys, Moscow, ID 83844 USA

[31] Univ Pisa, Dept Phys E Fermi, Pisa, Italy

[32] INFN, Pisa, Italy

[33] Univ Ljubljana, Ljubljana, Slovenia

[34] Jozef Stefan Inst, Fac Math & Phys, Ljubljana, Slovenia

[35] Johannes Gutenberg Univ Mainz, Inst Kernphys, DE-55128 Mainz, Germany

[36] St Norbert Coll, De Pere, WI 54115 USA

[37] Virginia Tech, Ctr Neutrino Phys, Blacksburg, VA 24061 USA

[38] Inst Phys & Technol, Kharkov, Ukraine

[39] Norfolk State Univ, Norfolk, VA USA

[40] Rutgers State Univ, New Brunswick, NJ USA

[41] Yerevan Phys Inst, Yerevan, Armenia

[42] Tel Aviv Univ, Tel Aviv, Israel

[43] Northern Michigan Univ, Marquette, MI USA

[44] INFN, Rome, Italy

[45] Univ Illinois, Chicago, IL USA

来源：

PHYSICS LETTERS B | 2019年 / 797卷

基金：

美国国家科学基金会; 以色列科学基金会;

关键词：

SCATTERING; ELECTRON; DYNAMICS; KNOCKOUT;

D O I：

10.1016/j.physletb.2019.134890

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the first measurement of the (e, e'p) reaction cross-section ratios for Helium-3 (He-3), Tritium (H-3), and Deuterium (d). The measurement covered a missing momentum range of 40 <= p(miss) <= 550 MeV/c, at large momentum transfer (< Q(2)> approximate to 1.9 (GeV/c)(2)) and x(B) > 1, which minimized contributions from non quasi-elastic (QE) reaction mechanisms. The data is compared with plane-wave impulse approximation (PWIA) calculations using realistic spectral functions and momentum distributions. The measured and PWIA-calculated cross-section ratios for He-3/d and H-3/d extend to just above the typical nucleon Fermi-momentum (k(F) approximate to 250 MeV/c) and differ from each other by similar to 20%, while for He-3/H-3 they agree within the measurement accuracy of about 3%. At momenta above k(F), the measured He-3/H-3 ratios differ from the calculation by 20% - 50%. Final state interaction (FSI) calculations using the generalized Eikonal Approximation indicate that FSI should change the He-3/H-3 cross-section ratio for this measurement by less than 5%. If these calculations are correct, then the differences at large missing momenta between the He-3/H-3 experimental and calculated ratios could be due to the underlying NN interaction, and thus could provide new constraints on the previously loosely-constrained short-distance parts of the NN interaction. (C) 2019 The Author(s). Published by Elsevier B.V.

引用

页数：7

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