Search for baryon-number and lepton-number violating decays of Λ hyperons using the CLAS detector at Jefferson Laboratory

M. E. McCracken; M. Bellis; K. P. Adhikari; D. Adikaram; Z. Akbar; S. Anefalos Pereira; R. A. Badui; J. Ball; N. A. Baltzell; M. Battaglieri; V. Batourine; I. Bedlinskiy; A. S. Biselli; S. Boiarinov; W. J. Briscoe; W. K. Brooks; V. D. Burkert; T. Cao; D. S. Carman; A. Celentano; S. Chandavar; G. Charles; L. Colaneri; P. L. Cole; M. Contalbrigo; O. Cortes; V. Crede; A. D'Angelo; N. Dashyan; R. De Vita; E. De Sanctis; A. Deur; C. Djalali; G. E. Dodge; R. Dupre; A. El Alaoui; L. El Fassi; E. Elouadrhiri; P. Eugenio; G. Fedotov; S. Fegan; R. Fersch; A. Filippi; J. A. Fleming; B. Garillon; N. Gevorgyan; G. P. Gilfoyle; K. L. Giovanetti; F. X. Girod; E. Golovatch; R. W. Gothe; K. A. Griffioen; M. Guidal; L. Guo; K. Hafidi; H. Hakobyan; C. Hanretty; M. Hattawy; K. Hicks; M. Holtrop; S. M. Hughes; Y. Ilieva; D. G. Ireland; B. S. Ishkhanov; E. L. Isupov; D. Jenkins; H. Jiang; H. S. Jo; D. Keller; G. Khachatryan; M. Khandaker; A. Kim; W. Kim; A. Klein; F. J. Klein; V. Kubarovsky; P. Lenisa; K. Livingston; H. Y. Lu; I. J.D. Macgregor; M. Mayer; B. McKinnon; M. D. Mestayer; C. A. Meyer; M. Mirazita; V. Mokeev; C. I. Moody; K. Moriya; C. Munoz Camacho; P. Nadel-Turonski; L. A. Net; S. Niccolai; M. Osipenko; A. I. Ostrovidov; K. Park; E. Pasyuk; S. Pisano; O. Pogorelko; J. W. Price; S. Procureur; Y. Prok; B. A. Raue; M. Ripani; A. Rizzo; G. Rosner; P. Roy; F. Sabatié; C. Salgado; R. A. Schumacher; E. Seder; Y. G. Sharabian; Iu Skorodumina; D. Sokhan; N. Sparveris; P. Stoler; I. I. Strakovsky; S. Strauch; V. Sytnik; Ye Tian; M. Ungaro; H. Voskanyan; E. Voutier; N. K. Walford; D. P. Watts; X. Wei; M. H. Wood; N. Zachariou; L. Zana; J. Zhang; Z. W. Zhao; I. Zonta

doi:10.1103/PhysRevD.92.072002

Search for baryon-number and lepton-number violating decays of Λ hyperons using the CLAS detector at Jefferson Laboratory

M. E. McCracken, M. Bellis, K. P. Adhikari, D. Adikaram, Z. Akbar, S. Anefalos Pereira, R. A. Badui, J. Ball, N. A. Baltzell, M. Battaglieri, V. Batourine, I. Bedlinskiy, A. S. Biselli, S. Boiarinov, W. J. Briscoe, W. K. Brooks, V. D. Burkert, T. Cao, D. S. Carman, A. CelentanoS. Chandavar, G. Charles, L. Colaneri, P. L. Cole, M. Contalbrigo, O. Cortes, V. Crede, A. D'Angelo, N. Dashyan, R. De Vita, E. De Sanctis, A. Deur, C. Djalali, G. E. Dodge, R. Dupre, A. El Alaoui, L. El Fassi, E. Elouadrhiri, P. Eugenio, G. Fedotov, S. Fegan, R. Fersch, A. Filippi, J. A. Fleming, B. Garillon, N. Gevorgyan, G. P. Gilfoyle, K. L. Giovanetti, F. X. Girod, E. Golovatch, R. W. Gothe, K. A. Griffioen, M. Guidal, L. Guo, K. Hafidi, H. Hakobyan, C. Hanretty, M. Hattawy, K. Hicks, M. Holtrop, S. M. Hughes, Y. Ilieva, D. G. Ireland, B. S. Ishkhanov, E. L. Isupov, D. Jenkins, H. Jiang, H. S. Jo, D. Keller, G. Khachatryan, M. Khandaker, A. Kim, W. Kim, A. Klein, F. J. Klein, V. Kubarovsky, P. Lenisa, K. Livingston, H. Y. Lu, I. J.D. Macgregor, M. Mayer, B. McKinnon, M. D. Mestayer, C. A. Meyer, M. Mirazita, V. Mokeev, C. I. Moody, K. Moriya, C. Munoz Camacho, P. Nadel-Turonski, L. A. Net, S. Niccolai, M. Osipenko, A. I. Ostrovidov, K. Park, E. Pasyuk, S. Pisano, O. Pogorelko, J. W. Price, S. Procureur, Y. Prok, B. A. Raue, M. Ripani, A. Rizzo, G. Rosner, P. Roy, F. Sabatié, C. Salgado, R. A. Schumacher, E. Seder, Y. G. Sharabian, Iu Skorodumina, D. Sokhan, N. Sparveris, P. Stoler, I. I. Strakovsky, S. Strauch, V. Sytnik, Ye Tian, M. Ungaro, H. Voskanyan, E. Voutier, N. K. Walford, D. P. Watts, X. Wei, M. H. Wood, N. Zachariou, L. Zana, J. Zhang, Z. W. Zhao, I. Zonta

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Abstract

We present a search for ten baryon number violating decay modes of Λ hyperons using the CLAS detector at Jefferson Laboratory. Nine of these decay modes result in a single meson and single lepton in the final state (Λ→m) and conserve either the sum or the difference of baryon and lepton number (B±L). The tenth decay mode (Λ→p¯π+) represents a difference in baryon number of two units and no difference in lepton number. We observe no significant signal and set upper limits on the branching fractions of these reactions in the range (4-200)×10-7 at the 90% confidence level.

Original language	English
Article number	072002
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	92
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.92.072002
State	Published - 9 Oct 2015

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10.1103/PhysRevD.92.072002

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McCracken, M. E., Bellis, M., Adhikari, K. P., Adikaram, D., Akbar, Z., Pereira, S. A., Badui, R. A., Ball, J., Baltzell, N. A., Battaglieri, M., Batourine, V., Bedlinskiy, I., Biselli, A. S., Boiarinov, S., Briscoe, W. J., Brooks, W. K., Burkert, V. D., Cao, T., Carman, D. S., ... Zonta, I. (2015). Search for baryon-number and lepton-number violating decays of Λ hyperons using the CLAS detector at Jefferson Laboratory. Physical Review D - Particles, Fields, Gravitation and Cosmology, 92(7), Article 072002. https://doi.org/10.1103/PhysRevD.92.072002

@article{e3a7145e24964eb1a3cc0ea7a3695085,

title = "Search for baryon-number and lepton-number violating decays of Λ hyperons using the CLAS detector at Jefferson Laboratory",

abstract = "We present a search for ten baryon number violating decay modes of Λ hyperons using the CLAS detector at Jefferson Laboratory. Nine of these decay modes result in a single meson and single lepton in the final state (Λ→m) and conserve either the sum or the difference of baryon and lepton number (B±L). The tenth decay mode (Λ→p¯π+) represents a difference in baryon number of two units and no difference in lepton number. We observe no significant signal and set upper limits on the branching fractions of these reactions in the range (4-200)×10-7 at the 90% confidence level.",

author = "McCracken, {M. E.} and M. Bellis and Adhikari, {K. P.} and D. Adikaram and Z. Akbar and Pereira, {S. Anefalos} and Badui, {R. A.} and J. Ball and Baltzell, {N. A.} and M. Battaglieri and V. Batourine and I. Bedlinskiy and Biselli, {A. S.} and S. Boiarinov and Briscoe, {W. J.} and Brooks, {W. K.} and Burkert, {V. D.} and T. Cao and Carman, {D. S.} and A. Celentano and S. Chandavar and G. Charles and L. Colaneri and Cole, {P. L.} and M. Contalbrigo and O. Cortes and V. Crede and A. D'Angelo and N. Dashyan and {De Vita}, R. and {De Sanctis}, E. and A. Deur and C. Djalali and Dodge, {G. E.} and R. Dupre and Alaoui, {A. El} and Fassi, {L. El} and E. Elouadrhiri and P. Eugenio and G. Fedotov and S. Fegan and R. Fersch and A. Filippi and Fleming, {J. A.} and B. Garillon and N. Gevorgyan and Gilfoyle, {G. P.} and Giovanetti, {K. L.} and Girod, {F. X.} and E. Golovatch and Gothe, {R. W.} and Griffioen, {K. A.} and M. Guidal and L. Guo and K. Hafidi and H. Hakobyan and C. Hanretty and M. Hattawy and K. Hicks and M. Holtrop and Hughes, {S. M.} and Y. Ilieva and Ireland, {D. G.} and Ishkhanov, {B. S.} and Isupov, {E. L.} and D. Jenkins and H. Jiang and Jo, {H. S.} and D. Keller and G. Khachatryan and M. Khandaker and A. Kim and W. Kim and A. Klein and Klein, {F. J.} and V. Kubarovsky and P. Lenisa and K. Livingston and Lu, {H. Y.} and Macgregor, {I. J.D.} and M. Mayer and B. McKinnon and Mestayer, {M. D.} and Meyer, {C. A.} and M. Mirazita and V. Mokeev and Moody, {C. I.} and K. Moriya and Camacho, {C. Munoz} and P. Nadel-Turonski and Net, {L. A.} and S. Niccolai and M. Osipenko and Ostrovidov, {A. I.} and K. Park and E. Pasyuk and S. Pisano and O. Pogorelko and Price, {J. W.} and S. Procureur and Y. Prok and Raue, {B. A.} and M. Ripani and A. Rizzo and G. Rosner and P. Roy and F. Sabati{\'e} and C. Salgado and Schumacher, {R. A.} and E. Seder and Sharabian, {Y. G.} and Iu Skorodumina and D. Sokhan and N. Sparveris and P. Stoler and Strakovsky, {I. I.} and S. Strauch and V. Sytnik and Ye Tian and M. Ungaro and H. Voskanyan and E. Voutier and Walford, {N. K.} and Watts, {D. P.} and X. Wei and Wood, {M. H.} and N. Zachariou and L. Zana and J. Zhang and Zhao, {Z. W.} and I. Zonta",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society. {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = oct,

day = "9",

doi = "10.1103/PhysRevD.92.072002",

language = "English",

volume = "92",

journal = "Physical Review D - Particles, Fields, Gravitation and Cosmology",

issn = "1550-7998",

publisher = "American Physical Society",

number = "7",

}

McCracken, ME, Bellis, M, Adhikari, KP, Adikaram, D, Akbar, Z, Pereira, SA, Badui, RA, Ball, J, Baltzell, NA, Battaglieri, M, Batourine, V, Bedlinskiy, I, Biselli, AS, Boiarinov, S, Briscoe, WJ, Brooks, WK, Burkert, VD, Cao, T, Carman, DS, Celentano, A, Chandavar, S, Charles, G, Colaneri, L, Cole, PL, Contalbrigo, M, Cortes, O, Crede, V, D'Angelo, A, Dashyan, N, De Vita, R, De Sanctis, E, Deur, A, Djalali, C, Dodge, GE, Dupre, R, Alaoui, AE, Fassi, LE, Elouadrhiri, E, Eugenio, P, Fedotov, G, Fegan, S, Fersch, R, Filippi, A, Fleming, JA, Garillon, B, Gevorgyan, N, Gilfoyle, GP, Giovanetti, KL, Girod, FX, Golovatch, E, Gothe, RW, Griffioen, KA, Guidal, M, Guo, L, Hafidi, K, Hakobyan, H, Hanretty, C, Hattawy, M, Hicks, K, Holtrop, M, Hughes, SM, Ilieva, Y, Ireland, DG, Ishkhanov, BS, Isupov, EL, Jenkins, D, Jiang, H, Jo, HS, Keller, D, Khachatryan, G, Khandaker, M, Kim, A, Kim, W, Klein, A, Klein, FJ, Kubarovsky, V, Lenisa, P, Livingston, K, Lu, HY, Macgregor, IJD, Mayer, M, McKinnon, B, Mestayer, MD, Meyer, CA, Mirazita, M, Mokeev, V, Moody, CI, Moriya, K, Camacho, CM, Nadel-Turonski, P, Net, LA, Niccolai, S, Osipenko, M, Ostrovidov, AI, Park, K, Pasyuk, E, Pisano, S, Pogorelko, O, Price, JW, Procureur, S, Prok, Y, Raue, BA, Ripani, M, Rizzo, A, Rosner, G, Roy, P, Sabatié, F, Salgado, C, Schumacher, RA, Seder, E, Sharabian, YG, Skorodumina, I, Sokhan, D, Sparveris, N, Stoler, P, Strakovsky, II, Strauch, S, Sytnik, V, Tian, Y, Ungaro, M, Voskanyan, H, Voutier, E, Walford, NK, Watts, DP, Wei, X, Wood, MH, Zachariou, N, Zana, L, Zhang, J, Zhao, ZW & Zonta, I 2015, 'Search for baryon-number and lepton-number violating decays of Λ hyperons using the CLAS detector at Jefferson Laboratory', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 92, no. 7, 072002. https://doi.org/10.1103/PhysRevD.92.072002

TY - JOUR

T1 - Search for baryon-number and lepton-number violating decays of Λ hyperons using the CLAS detector at Jefferson Laboratory

AU - McCracken, M. E.

AU - Bellis, M.

AU - Adhikari, K. P.

AU - Adikaram, D.

AU - Akbar, Z.

AU - Pereira, S. Anefalos

AU - Badui, R. A.

AU - Ball, J.

AU - Baltzell, N. A.

AU - Battaglieri, M.

AU - Batourine, V.

AU - Bedlinskiy, I.

AU - Biselli, A. S.

AU - Boiarinov, S.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Burkert, V. D.

AU - Cao, T.

AU - Carman, D. S.

AU - Celentano, A.

AU - Chandavar, S.

AU - Charles, G.

AU - Colaneri, L.

AU - Cole, P. L.

AU - Contalbrigo, M.

AU - Cortes, O.

AU - Crede, V.

AU - D'Angelo, A.

AU - Dashyan, N.

AU - De Vita, R.

AU - De Sanctis, E.

AU - Deur, A.

AU - Djalali, C.

AU - Dodge, G. E.

AU - Dupre, R.

AU - Alaoui, A. El

AU - Fassi, L. El

AU - Elouadrhiri, E.

AU - Eugenio, P.

AU - Fedotov, G.

AU - Fegan, S.

AU - Fersch, R.

AU - Filippi, A.

AU - Fleming, J. A.

AU - Garillon, B.

AU - Gevorgyan, N.

AU - Gilfoyle, G. P.

AU - Giovanetti, K. L.

AU - Girod, F. X.

AU - Golovatch, E.

AU - Gothe, R. W.

AU - Griffioen, K. A.

AU - Guidal, M.

AU - Guo, L.

AU - Hafidi, K.

AU - Hakobyan, H.

AU - Hanretty, C.

AU - Hattawy, M.

AU - Hicks, K.

AU - Holtrop, M.

AU - Hughes, S. M.

AU - Ilieva, Y.

AU - Ireland, D. G.

AU - Ishkhanov, B. S.

AU - Isupov, E. L.

AU - Jenkins, D.

AU - Jiang, H.

AU - Jo, H. S.

AU - Keller, D.

AU - Khachatryan, G.

AU - Khandaker, M.

AU - Kim, A.

AU - Kim, W.

AU - Klein, A.

AU - Klein, F. J.

AU - Kubarovsky, V.

AU - Lenisa, P.

AU - Livingston, K.

AU - Lu, H. Y.

AU - Macgregor, I. J.D.

AU - Mayer, M.

AU - McKinnon, B.

AU - Mestayer, M. D.

AU - Meyer, C. A.

AU - Mirazita, M.

AU - Mokeev, V.

AU - Moody, C. I.

AU - Moriya, K.

AU - Camacho, C. Munoz

AU - Nadel-Turonski, P.

AU - Net, L. A.

AU - Niccolai, S.

AU - Osipenko, M.

AU - Ostrovidov, A. I.

AU - Park, K.

AU - Pasyuk, E.

AU - Pisano, S.

AU - Pogorelko, O.

AU - Price, J. W.

AU - Procureur, S.

AU - Prok, Y.

AU - Raue, B. A.

AU - Ripani, M.

AU - Rizzo, A.

AU - Rosner, G.

AU - Roy, P.

AU - Sabatié, F.

AU - Salgado, C.

AU - Schumacher, R. A.

AU - Seder, E.

AU - Sharabian, Y. G.

AU - Skorodumina, Iu

AU - Sokhan, D.

AU - Sparveris, N.

AU - Stoler, P.

AU - Strakovsky, I. I.

AU - Strauch, S.

AU - Sytnik, V.

AU - Tian, Ye

AU - Ungaro, M.

AU - Voskanyan, H.

AU - Voutier, E.

AU - Walford, N. K.

AU - Watts, D. P.

AU - Wei, X.

AU - Wood, M. H.

AU - Zachariou, N.

AU - Zana, L.

AU - Zhang, J.

AU - Zhao, Z. W.

AU - Zonta, I.

PY - 2015/10/9

Y1 - 2015/10/9

N2 - We present a search for ten baryon number violating decay modes of Λ hyperons using the CLAS detector at Jefferson Laboratory. Nine of these decay modes result in a single meson and single lepton in the final state (Λ→m) and conserve either the sum or the difference of baryon and lepton number (B±L). The tenth decay mode (Λ→p¯π+) represents a difference in baryon number of two units and no difference in lepton number. We observe no significant signal and set upper limits on the branching fractions of these reactions in the range (4-200)×10-7 at the 90% confidence level.

AB - We present a search for ten baryon number violating decay modes of Λ hyperons using the CLAS detector at Jefferson Laboratory. Nine of these decay modes result in a single meson and single lepton in the final state (Λ→m) and conserve either the sum or the difference of baryon and lepton number (B±L). The tenth decay mode (Λ→p¯π+) represents a difference in baryon number of two units and no difference in lepton number. We observe no significant signal and set upper limits on the branching fractions of these reactions in the range (4-200)×10-7 at the 90% confidence level.

UR - http://www.scopus.com/inward/record.url?scp=84945270099&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.92.072002

DO - 10.1103/PhysRevD.92.072002

M3 - Article

AN - SCOPUS:84945270099

SN - 1550-7998

VL - 92

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

IS - 7

M1 - 072002

ER -

Search for baryon-number and lepton-number violating decays of Λ hyperons using the CLAS detector at Jefferson Laboratory

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