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Title: A Bayesian analysis of pentaquark signals from CLAS data

Abstract

We examine the results of two measurements by the CLAS collaboration, one of which claimed evidence for a $$\Theta^{+}$$ pentaquark, whilst the other found no such evidence. The unique feature of these two experiments was that they were performed with the same experimental setup. Using a Bayesian analysis we find that the results of the two experiments are in fact compatible with each other, but that the first measurement did not contain sufficient information to determine unambiguously the existence of a $$\Theta^{+}$$. Further, we suggest a means by which the existence of a new candidate particle can be tested in a rigorous manner.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; more »; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; « less
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA
Sponsoring Org.:
USDOE - Office of Energy Research (ER)
OSTI Identifier:
917693
Report Number(s):
JLAB-PHY-07-728; DOE/OR/23177-0172; arXiv:0709.3154
TRN: US0805084
DOE Contract Number:  
AC05-06OR23177
Resource Type:
Journal Article
Journal Name:
Phys.Rev.Lett.
Additional Journal Information:
Journal Volume: 100
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; CEBAF ACCELERATOR; QUARKS; DATA ANALYSIS

Citation Formats

Ireland, David, McKinnon, Bryan, Protopopescu, Dan, Ambrozewicz, Pawel, Anghinolfi, Marco, Asryan, G, Avakian, Harutyun, Bagdasaryan, H, Baillie, Nathan, Ball, Jacques, Baltzell, Nathan, Batourine, V, Battaglieri, Marco, Bedlinski, Ivan, Bedlinskiy, Ivan, Bellis, Matthew, Benmouna, Nawal, Berman, Barry, Biselli, Angela, Blaszczyk, Lukasz, Bouchigny, Sylvain, Boyarinov, Sergey, Bradford, Robert, Branford, Derek, Briscoe, William, Brooks, William, Burkert, Volker, Butuceanu, Cornel, Calarco, John, Careccia, Sharon, Carman, Daniel, Casey, Liam, Chen, Shifeng, Cheng, Lu, Cole, Philip, Collins, Patrick, Coltharp, Philip, Crabb, Donald, Crede, Volker, Dashyan, Natalya, Masi, Rita De, Vita, Raffaella De, Sanctis, Enzo De, Degtiarenko, Pavel, Deur, Alexandre, Dickson, Richard, Djalali, Chaden, Dodge, Gail, Donnelly, Joseph, Doughty, David, Dugger, Michael, Dzyubak, Oleksandr, Egiyan, Hovanes, Egiyan, Kim, Elfassi, Lamiaa, Elouadrhiri, Latifa, Eugenio, Paul, Fedotov, Gleb, Feldman, Gerald, Fradi, Ahmed, Funsten, Herbert, Garcon, Michel, Gavalian, Gagik, Gevorgyan, Nerses, Gilfoyle, Gerard, Giovanetti, Kevin, Girod, Francois-Xavier, Goetz, John, Gohn, Wesley, Gonenc, Atilla, Gothe, Ralf, Griffioen, Keith, Guidal, Michel, Guler, Nevzat, Guo, Lei, Gyurjyan, Vardan, Hafidi, Kawtar, Hakobyan, Hayk, Hanretty, Charles, Hassall, Neil, Hersman, F, Hleiqawi, Ishaq, Holtrop, Maurik, Hyde, Charles, Ilieva, Yordanka, Ishkhanov, Boris, Isupov, Eugeny, Jenkins, D, Jo, Hyon-Suk, Johnstone, John, Joo, Kyungseon, Juengst, Henry, Kalantarians, Narbe, Kellie, James, Khandaker, Mahbubul, Kim, Wooyoung, Klein, Andreas, Klein, Franz, Kossov, Mikhail, Krahn, Zebulun, Kramer, Laird, Kubarovsky, Valery, Kuhn, Joachim, Kuleshov, Sergey, Kuznetsov, Viacheslav, Lachniet, Jeff, Laget, Jean, Langheinrich, Jorn, Lawrence, D, Livingston, Kenneth, Lu, Haiyun, MacCormick, Marion, Markov, Nikolai, Mattione, Paul, Mecking, Bernhard, Mestayer, Mac, Meyer, Curtis, Mibe, Tsutomu, Mikhaylov, Konstantin, Mirazita, Marco, Miskimen, Rory, Mokeev, Viktor, Moreno, Brahim, Moriya, Kei, Morrow, Steven, Moteabbed, Maryam, Espitia, Edwin Munevar, Mutchler, Gordon, Nadel-Turonski, Pawel, Nasseripour, Rakhsha, Niccolai, Silvia, Niculescu, Gabriel, Niculescu, Maria-Ioana, Niczyporuk, Bogdan, Niroula, Megh, Niyazov, Rustam, Nozar, Mina, Osipenko, Mikhail, Ostrovidov, Alexander, Park, Kijun, Pasyuk, Evgueni, Paterson, Craig, Pereira, Sergio, Pierce, Joshua, Pivnyuk, Nikolay, Pogorelko, Oleg, Pozdnyakov, Sergey, Price, John, Procureur, Sebastien, Prok, Yelena, Raue, Brian, Ricco, Giovanni, Ripani, Marco, Ritchie, Barry, Ronchetti, Federico, Rosner, Guenther, Rossi, Patrizia, Sabatie, Franck, Salamanca, Julian, Salgado, Carlos, Santoro, Joseph, Sapunenko, Vladimir, Schumacher, Reinhard, Serov, Vladimir, Sharabian, Youri, Sharov, Dmitri, Shvedunov, Nikolay, Smith, Elton, Smith, Lee, Sober, Daniel, Sokhan, Daria, Stavinskiy, Aleksey, Stepanyan, Samuel, Stepanyan, Stepan, Stokes, Burnham, Stoler, Paul, Strauch, Steffen, Taiuti, Mauro, Tedeschi, David, Thoma, Ulrike, Tkabladze, Avtandil, Tkachenko, Svyatoslav, Tur, Clarisse, Ungaro, Maurizio, Vineyard, Michael, Vlassov, Alexander, Watts, Daniel, Weinstein, Lawrence, Weygand, Dennis, Williams, M, Wolin, Elliott, Wood, M H, Yegneswaran, Amrit, Zana, Lorenzo, Zhang, Jixie, Zhao, Bo, and Zhao, Zhiwen. A Bayesian analysis of pentaquark signals from CLAS data. United States: N. p., 2008. Web. doi:10.1103/PhysRevLett.100.052001.
Ireland, David, McKinnon, Bryan, Protopopescu, Dan, Ambrozewicz, Pawel, Anghinolfi, Marco, Asryan, G, Avakian, Harutyun, Bagdasaryan, H, Baillie, Nathan, Ball, Jacques, Baltzell, Nathan, Batourine, V, Battaglieri, Marco, Bedlinski, Ivan, Bedlinskiy, Ivan, Bellis, Matthew, Benmouna, Nawal, Berman, Barry, Biselli, Angela, Blaszczyk, Lukasz, Bouchigny, Sylvain, Boyarinov, Sergey, Bradford, Robert, Branford, Derek, Briscoe, William, Brooks, William, Burkert, Volker, Butuceanu, Cornel, Calarco, John, Careccia, Sharon, Carman, Daniel, Casey, Liam, Chen, Shifeng, Cheng, Lu, Cole, Philip, Collins, Patrick, Coltharp, Philip, Crabb, Donald, Crede, Volker, Dashyan, Natalya, Masi, Rita De, Vita, Raffaella De, Sanctis, Enzo De, Degtiarenko, Pavel, Deur, Alexandre, Dickson, Richard, Djalali, Chaden, Dodge, Gail, Donnelly, Joseph, Doughty, David, Dugger, Michael, Dzyubak, Oleksandr, Egiyan, Hovanes, Egiyan, Kim, Elfassi, Lamiaa, Elouadrhiri, Latifa, Eugenio, Paul, Fedotov, Gleb, Feldman, Gerald, Fradi, Ahmed, Funsten, Herbert, Garcon, Michel, Gavalian, Gagik, Gevorgyan, Nerses, Gilfoyle, Gerard, Giovanetti, Kevin, Girod, Francois-Xavier, Goetz, John, Gohn, Wesley, Gonenc, Atilla, Gothe, Ralf, Griffioen, Keith, Guidal, Michel, Guler, Nevzat, Guo, Lei, Gyurjyan, Vardan, Hafidi, Kawtar, Hakobyan, Hayk, Hanretty, Charles, Hassall, Neil, Hersman, F, Hleiqawi, Ishaq, Holtrop, Maurik, Hyde, Charles, Ilieva, Yordanka, Ishkhanov, Boris, Isupov, Eugeny, Jenkins, D, Jo, Hyon-Suk, Johnstone, John, Joo, Kyungseon, Juengst, Henry, Kalantarians, Narbe, Kellie, James, Khandaker, Mahbubul, Kim, Wooyoung, Klein, Andreas, Klein, Franz, Kossov, Mikhail, Krahn, Zebulun, Kramer, Laird, Kubarovsky, Valery, Kuhn, Joachim, Kuleshov, Sergey, Kuznetsov, Viacheslav, Lachniet, Jeff, Laget, Jean, Langheinrich, Jorn, Lawrence, D, Livingston, Kenneth, Lu, Haiyun, MacCormick, Marion, Markov, Nikolai, Mattione, Paul, Mecking, Bernhard, Mestayer, Mac, Meyer, Curtis, Mibe, Tsutomu, Mikhaylov, Konstantin, Mirazita, Marco, Miskimen, Rory, Mokeev, Viktor, Moreno, Brahim, Moriya, Kei, Morrow, Steven, Moteabbed, Maryam, Espitia, Edwin Munevar, Mutchler, Gordon, Nadel-Turonski, Pawel, Nasseripour, Rakhsha, Niccolai, Silvia, Niculescu, Gabriel, Niculescu, Maria-Ioana, Niczyporuk, Bogdan, Niroula, Megh, Niyazov, Rustam, Nozar, Mina, Osipenko, Mikhail, Ostrovidov, Alexander, Park, Kijun, Pasyuk, Evgueni, Paterson, Craig, Pereira, Sergio, Pierce, Joshua, Pivnyuk, Nikolay, Pogorelko, Oleg, Pozdnyakov, Sergey, Price, John, Procureur, Sebastien, Prok, Yelena, Raue, Brian, Ricco, Giovanni, Ripani, Marco, Ritchie, Barry, Ronchetti, Federico, Rosner, Guenther, Rossi, Patrizia, Sabatie, Franck, Salamanca, Julian, Salgado, Carlos, Santoro, Joseph, Sapunenko, Vladimir, Schumacher, Reinhard, Serov, Vladimir, Sharabian, Youri, Sharov, Dmitri, Shvedunov, Nikolay, Smith, Elton, Smith, Lee, Sober, Daniel, Sokhan, Daria, Stavinskiy, Aleksey, Stepanyan, Samuel, Stepanyan, Stepan, Stokes, Burnham, Stoler, Paul, Strauch, Steffen, Taiuti, Mauro, Tedeschi, David, Thoma, Ulrike, Tkabladze, Avtandil, Tkachenko, Svyatoslav, Tur, Clarisse, Ungaro, Maurizio, Vineyard, Michael, Vlassov, Alexander, Watts, Daniel, Weinstein, Lawrence, Weygand, Dennis, Williams, M, Wolin, Elliott, Wood, M H, Yegneswaran, Amrit, Zana, Lorenzo, Zhang, Jixie, Zhao, Bo, & Zhao, Zhiwen. A Bayesian analysis of pentaquark signals from CLAS data. United States. doi:10.1103/PhysRevLett.100.052001.
Ireland, David, McKinnon, Bryan, Protopopescu, Dan, Ambrozewicz, Pawel, Anghinolfi, Marco, Asryan, G, Avakian, Harutyun, Bagdasaryan, H, Baillie, Nathan, Ball, Jacques, Baltzell, Nathan, Batourine, V, Battaglieri, Marco, Bedlinski, Ivan, Bedlinskiy, Ivan, Bellis, Matthew, Benmouna, Nawal, Berman, Barry, Biselli, Angela, Blaszczyk, Lukasz, Bouchigny, Sylvain, Boyarinov, Sergey, Bradford, Robert, Branford, Derek, Briscoe, William, Brooks, William, Burkert, Volker, Butuceanu, Cornel, Calarco, John, Careccia, Sharon, Carman, Daniel, Casey, Liam, Chen, Shifeng, Cheng, Lu, Cole, Philip, Collins, Patrick, Coltharp, Philip, Crabb, Donald, Crede, Volker, Dashyan, Natalya, Masi, Rita De, Vita, Raffaella De, Sanctis, Enzo De, Degtiarenko, Pavel, Deur, Alexandre, Dickson, Richard, Djalali, Chaden, Dodge, Gail, Donnelly, Joseph, Doughty, David, Dugger, Michael, Dzyubak, Oleksandr, Egiyan, Hovanes, Egiyan, Kim, Elfassi, Lamiaa, Elouadrhiri, Latifa, Eugenio, Paul, Fedotov, Gleb, Feldman, Gerald, Fradi, Ahmed, Funsten, Herbert, Garcon, Michel, Gavalian, Gagik, Gevorgyan, Nerses, Gilfoyle, Gerard, Giovanetti, Kevin, Girod, Francois-Xavier, Goetz, John, Gohn, Wesley, Gonenc, Atilla, Gothe, Ralf, Griffioen, Keith, Guidal, Michel, Guler, Nevzat, Guo, Lei, Gyurjyan, Vardan, Hafidi, Kawtar, Hakobyan, Hayk, Hanretty, Charles, Hassall, Neil, Hersman, F, Hleiqawi, Ishaq, Holtrop, Maurik, Hyde, Charles, Ilieva, Yordanka, Ishkhanov, Boris, Isupov, Eugeny, Jenkins, D, Jo, Hyon-Suk, Johnstone, John, Joo, Kyungseon, Juengst, Henry, Kalantarians, Narbe, Kellie, James, Khandaker, Mahbubul, Kim, Wooyoung, Klein, Andreas, Klein, Franz, Kossov, Mikhail, Krahn, Zebulun, Kramer, Laird, Kubarovsky, Valery, Kuhn, Joachim, Kuleshov, Sergey, Kuznetsov, Viacheslav, Lachniet, Jeff, Laget, Jean, Langheinrich, Jorn, Lawrence, D, Livingston, Kenneth, Lu, Haiyun, MacCormick, Marion, Markov, Nikolai, Mattione, Paul, Mecking, Bernhard, Mestayer, Mac, Meyer, Curtis, Mibe, Tsutomu, Mikhaylov, Konstantin, Mirazita, Marco, Miskimen, Rory, Mokeev, Viktor, Moreno, Brahim, Moriya, Kei, Morrow, Steven, Moteabbed, Maryam, Espitia, Edwin Munevar, Mutchler, Gordon, Nadel-Turonski, Pawel, Nasseripour, Rakhsha, Niccolai, Silvia, Niculescu, Gabriel, Niculescu, Maria-Ioana, Niczyporuk, Bogdan, Niroula, Megh, Niyazov, Rustam, Nozar, Mina, Osipenko, Mikhail, Ostrovidov, Alexander, Park, Kijun, Pasyuk, Evgueni, Paterson, Craig, Pereira, Sergio, Pierce, Joshua, Pivnyuk, Nikolay, Pogorelko, Oleg, Pozdnyakov, Sergey, Price, John, Procureur, Sebastien, Prok, Yelena, Raue, Brian, Ricco, Giovanni, Ripani, Marco, Ritchie, Barry, Ronchetti, Federico, Rosner, Guenther, Rossi, Patrizia, Sabatie, Franck, Salamanca, Julian, Salgado, Carlos, Santoro, Joseph, Sapunenko, Vladimir, Schumacher, Reinhard, Serov, Vladimir, Sharabian, Youri, Sharov, Dmitri, Shvedunov, Nikolay, Smith, Elton, Smith, Lee, Sober, Daniel, Sokhan, Daria, Stavinskiy, Aleksey, Stepanyan, Samuel, Stepanyan, Stepan, Stokes, Burnham, Stoler, Paul, Strauch, Steffen, Taiuti, Mauro, Tedeschi, David, Thoma, Ulrike, Tkabladze, Avtandil, Tkachenko, Svyatoslav, Tur, Clarisse, Ungaro, Maurizio, Vineyard, Michael, Vlassov, Alexander, Watts, Daniel, Weinstein, Lawrence, Weygand, Dennis, Williams, M, Wolin, Elliott, Wood, M H, Yegneswaran, Amrit, Zana, Lorenzo, Zhang, Jixie, Zhao, Bo, and Zhao, Zhiwen. Fri . "A Bayesian analysis of pentaquark signals from CLAS data". United States. doi:10.1103/PhysRevLett.100.052001. https://www.osti.gov/servlets/purl/917693.
@article{osti_917693,
title = {A Bayesian analysis of pentaquark signals from CLAS data},
author = {Ireland, David and McKinnon, Bryan and Protopopescu, Dan and Ambrozewicz, Pawel and Anghinolfi, Marco and Asryan, G and Avakian, Harutyun and Bagdasaryan, H and Baillie, Nathan and Ball, Jacques and Baltzell, Nathan and Batourine, V and Battaglieri, Marco and Bedlinski, Ivan and Bedlinskiy, Ivan and Bellis, Matthew and Benmouna, Nawal and Berman, Barry and Biselli, Angela and Blaszczyk, Lukasz and Bouchigny, Sylvain and Boyarinov, Sergey and Bradford, Robert and Branford, Derek and Briscoe, William and Brooks, William and Burkert, Volker and Butuceanu, Cornel and Calarco, John and Careccia, Sharon and Carman, Daniel and Casey, Liam and Chen, Shifeng and Cheng, Lu and Cole, Philip and Collins, Patrick and Coltharp, Philip and Crabb, Donald and Crede, Volker and Dashyan, Natalya and Masi, Rita De and Vita, Raffaella De and Sanctis, Enzo De and Degtiarenko, Pavel and Deur, Alexandre and Dickson, Richard and Djalali, Chaden and Dodge, Gail and Donnelly, Joseph and Doughty, David and Dugger, Michael and Dzyubak, Oleksandr and Egiyan, Hovanes and Egiyan, Kim and Elfassi, Lamiaa and Elouadrhiri, Latifa and Eugenio, Paul and Fedotov, Gleb and Feldman, Gerald and Fradi, Ahmed and Funsten, Herbert and Garcon, Michel and Gavalian, Gagik and Gevorgyan, Nerses and Gilfoyle, Gerard and Giovanetti, Kevin and Girod, Francois-Xavier and Goetz, John and Gohn, Wesley and Gonenc, Atilla and Gothe, Ralf and Griffioen, Keith and Guidal, Michel and Guler, Nevzat and Guo, Lei and Gyurjyan, Vardan and Hafidi, Kawtar and Hakobyan, Hayk and Hanretty, Charles and Hassall, Neil and Hersman, F and Hleiqawi, Ishaq and Holtrop, Maurik and Hyde, Charles and Ilieva, Yordanka and Ishkhanov, Boris and Isupov, Eugeny and Jenkins, D and Jo, Hyon-Suk and Johnstone, John and Joo, Kyungseon and Juengst, Henry and Kalantarians, Narbe and Kellie, James and Khandaker, Mahbubul and Kim, Wooyoung and Klein, Andreas and Klein, Franz and Kossov, Mikhail and Krahn, Zebulun and Kramer, Laird and Kubarovsky, Valery and Kuhn, Joachim and Kuleshov, Sergey and Kuznetsov, Viacheslav and Lachniet, Jeff and Laget, Jean and Langheinrich, Jorn and Lawrence, D and Livingston, Kenneth and Lu, Haiyun and MacCormick, Marion and Markov, Nikolai and Mattione, Paul and Mecking, Bernhard and Mestayer, Mac and Meyer, Curtis and Mibe, Tsutomu and Mikhaylov, Konstantin and Mirazita, Marco and Miskimen, Rory and Mokeev, Viktor and Moreno, Brahim and Moriya, Kei and Morrow, Steven and Moteabbed, Maryam and Espitia, Edwin Munevar and Mutchler, Gordon and Nadel-Turonski, Pawel and Nasseripour, Rakhsha and Niccolai, Silvia and Niculescu, Gabriel and Niculescu, Maria-Ioana and Niczyporuk, Bogdan and Niroula, Megh and Niyazov, Rustam and Nozar, Mina and Osipenko, Mikhail and Ostrovidov, Alexander and Park, Kijun and Pasyuk, Evgueni and Paterson, Craig and Pereira, Sergio and Pierce, Joshua and Pivnyuk, Nikolay and Pogorelko, Oleg and Pozdnyakov, Sergey and Price, John and Procureur, Sebastien and Prok, Yelena and Raue, Brian and Ricco, Giovanni and Ripani, Marco and Ritchie, Barry and Ronchetti, Federico and Rosner, Guenther and Rossi, Patrizia and Sabatie, Franck and Salamanca, Julian and Salgado, Carlos and Santoro, Joseph and Sapunenko, Vladimir and Schumacher, Reinhard and Serov, Vladimir and Sharabian, Youri and Sharov, Dmitri and Shvedunov, Nikolay and Smith, Elton and Smith, Lee and Sober, Daniel and Sokhan, Daria and Stavinskiy, Aleksey and Stepanyan, Samuel and Stepanyan, Stepan and Stokes, Burnham and Stoler, Paul and Strauch, Steffen and Taiuti, Mauro and Tedeschi, David and Thoma, Ulrike and Tkabladze, Avtandil and Tkachenko, Svyatoslav and Tur, Clarisse and Ungaro, Maurizio and Vineyard, Michael and Vlassov, Alexander and Watts, Daniel and Weinstein, Lawrence and Weygand, Dennis and Williams, M and Wolin, Elliott and Wood, M H and Yegneswaran, Amrit and Zana, Lorenzo and Zhang, Jixie and Zhao, Bo and Zhao, Zhiwen},
abstractNote = {We examine the results of two measurements by the CLAS collaboration, one of which claimed evidence for a $\Theta^{+}$ pentaquark, whilst the other found no such evidence. The unique feature of these two experiments was that they were performed with the same experimental setup. Using a Bayesian analysis we find that the results of the two experiments are in fact compatible with each other, but that the first measurement did not contain sufficient information to determine unambiguously the existence of a $\Theta^{+}$. Further, we suggest a means by which the existence of a new candidate particle can be tested in a rigorous manner.},
doi = {10.1103/PhysRevLett.100.052001},
journal = {Phys.Rev.Lett.},
number = ,
volume = 100,
place = {United States},
year = {2008},
month = {2}
}