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Improved Λp Elastic Scattering Cross Sections between 0.9 and 2.0  GeV/c as a Main Ingredient of the Neutron Star Equation of State.

Publication ,  Journal Article
Rowley, J; Compton, N; Djalali, C; Hicks, K; Price, J; Zachariou, N; Adhikari, KP; Armstrong, WR; Atac, H; Baashen, L; Barion, L; Bashkanov, M ...
Published in: Physical review letters
December 2021

Strange matter is believed to exist in the cores of neutron stars based on simple kinematics. If this is true, then hyperon-nucleon interactions will play a significant part in the neutron star equation of state. Yet, compared to other elastic scattering processes, there is very little data on Λ-N scattering. This experiment utilized the CEBAF Large Acceptance Spectrometer (CLAS) detector to study the Λp→Λp elastic scattering cross section in the incident Λ momentum range 0.9-2.0  GeV/c. These are the first data on this reaction since the 1970s. The new cross sections have significantly better accuracy and precision than the existing world data, and the techniques developed here can also be used in future experiments.

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Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

December 2021

Volume

127

Issue

27

Start / End Page

272303

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Rowley, J., Compton, N., Djalali, C., Hicks, K., Price, J., Zachariou, N., … CLAS Collaboration. (2021). Improved Λp Elastic Scattering Cross Sections between 0.9 and 2.0  GeV/c as a Main Ingredient of the Neutron Star Equation of State. Physical Review Letters, 127(27), 272303. https://doi.org/10.1103/physrevlett.127.272303
Rowley, J., N. Compton, C. Djalali, K. Hicks, J. Price, N. Zachariou, K. P. Adhikari, et al. “Improved Λp Elastic Scattering Cross Sections between 0.9 and 2.0  GeV/c as a Main Ingredient of the Neutron Star Equation of State.Physical Review Letters 127, no. 27 (December 2021): 272303. https://doi.org/10.1103/physrevlett.127.272303.
Rowley J, Compton N, Djalali C, Hicks K, Price J, Zachariou N, et al. Improved Λp Elastic Scattering Cross Sections between 0.9 and 2.0  GeV/c as a Main Ingredient of the Neutron Star Equation of State. Physical review letters. 2021 Dec;127(27):272303.
Rowley, J., et al. “Improved Λp Elastic Scattering Cross Sections between 0.9 and 2.0  GeV/c as a Main Ingredient of the Neutron Star Equation of State.Physical Review Letters, vol. 127, no. 27, Dec. 2021, p. 272303. Epmc, doi:10.1103/physrevlett.127.272303.
Rowley J, Compton N, Djalali C, Hicks K, Price J, Zachariou N, Adhikari KP, Armstrong WR, Atac H, Baashen L, Barion L, Bashkanov M, Battaglieri M, Bedlinskiy I, Benmokhtar F, Bianconi A, Biondo L, Biselli AS, Bondi M, Bossù F, Boiarinov S, Briscoe WJ, Brooks WK, Bulumulla D, Burkert VD, Carman DS, Carvajal JC, Celentano A, Chatagnon P, Chesnokov V, Chetry T, Ciullo G, Clark L, Cole PL, Contalbrigo M, Costantini G, Crede V, D’Angelo A, Dashyan N, De Vita R, Defurne M, Deur A, Diehl S, Dupré R, Egiyan H, Ehrhart M, El Alaoui A, El Fassi L, Eugenio P, Fedotov G, Fegan S, Fersch R, Filippi A, Fradi A, Gavalian G, Girod FX, Glazier DI, Golubenko A, Gothe RW, Griffioen K, Guo L, Hafidi K, Hakobyan H, Hattawy M, Hayward TB, Heddle D, Hobart A, Holtrop M, Ilieva Y, Ireland DG, Isupov EL, Jenkins D, Jo HS, Joo K, Keller D, Khanal A, Khandaker M, Kim A, Korover I, Kripko A, Kubarovsky V, Kuhn SE, Lanza L, Leali M, Lenisa P, Livingston K, MacGregor IJD, Marchand D, Markov N, Marsicano L, Mascagna V, McCracken ME, McKinnon B, McLauchlin C, Meziani ZE, Migliorati S, Mineeva T, Mirazita M, Mokeev V, Munevar E, Munoz Camacho C, Nadel-Turonski P, Neupane K, Niccolai S, Niculescu G, O’Connell TR, Osipenko M, Ostrovidov AI, Pandey P, Paolone M, Pappalardo LL, Pasyuk E, Pogorelko O, Prok Y, Reed T, Ripani M, Ritman J, Rizzo A, Rosner G, Sabatie F, Salgado C, Schmidt A, Schumacher RA, Sharabian YG, Shrestha U, Sokhan D, Soto O, Sparveris N, Strakovsky II, Strauch S, Tyson R, Ungaro M, Venturelli L, Voskanyan H, Vossen A, Voutier E, Watts DP, Wei K, Wei X, Wishart R, Wood MH, Yale B, Yurov M, Zhang J, Zhao ZW, CLAS Collaboration. Improved Λp Elastic Scattering Cross Sections between 0.9 and 2.0  GeV/c as a Main Ingredient of the Neutron Star Equation of State. Physical review letters. 2021 Dec;127(27):272303.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

December 2021

Volume

127

Issue

27

Start / End Page

272303

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences