Double helicity asymmetry in inclusive midrapidity pi(0) production for polarized p+p collisions at root s=200 GeV

SS Adler; S Afanasiev; C Aidala; NN Ajitanand; Y Akiba; A Al-Jamel; J Alexander; K Aoki; L Aphecetche; R Armendariz; SH Aronson; R Averbeck; TC Awes; V Babintsev; A Baldisseri; KN Barish; PD Barnes; B Bassalleck; S Bathe; S Batsouli; V Baublis; F Bauer; A Bazilevsky; S Belikov; MT Bjorndal; JG Boissevain; H Borel; ML Brooks; DS Brown; N Bruner; D Bucher; H Buesching; V Bumazhnov; G Bunce; JM Burward-Hoy; S Butsyk; X Camard; P Chand; WC Chang; S Chernichenko; CY Chi; J Chiba; M Chiu; IJ Choi; RK Choudhury; T Chujo; V Cianciolo; Y Cobigo; BA Cole; MP Comets; P Constantin; M Csanad; T Csorgo; JP Cussonneau; D d'Enterria; K Das; G David; F Deak; H Delagrange; A Denisov; A Deshpande; EJ Desmond; A Devismes; O Dietzsch; JL Drachenberg; O Drapier; A Drees; A Durum; D Dutta; V Dzhordzhadze; YV Efremenko; H En'yo; B Espagnon; S Esumi; DE Fields; C Finck; F Fleuret; SL Fokin; BD Fox; Z Fraenkel; JE Frantz; A Franz; AD Frawley; Y Fukao; SY Fung; S Gadrat; M Germain; A Glenn; M Gonin; J Gosset; Y Goto; RG de Cassagnac; N Grau; SV Greene; MG Perdekamp; Hans-Åke Gustafsson; T Hachiya; JS Haggerty; H Hamagaki; AG Hansen; EP Hartouni; M Harvey; K Hasuko; R Hayano; X He; M Heffner; TK Hemmick; JM Heuser; P Hidas; H Hiejima; JC Hill; R Hobbs; W Holzmann; K Homma; B Hong; A Hoover; T Horaguchi; T Ichihara; VV Ikonnikov; K Imai; M Inaba; M Inuzuka; D Isenhower; L Isenhower; M Ishihara; M Issah; A Isupov; BV Jacak; J Jia; O Jinnouchi; BM Johnson; SC Johnson; KS Joo; D Jouan; F Kajihara; S Kametani; N Kamihara; M Kaneta; JH Kang; K Katou; T Kawabata; A Kazantsev; S Kelly; B Khachaturov; A Khanzadeev; J Kikuchi; DJ Kim; E Kim; GB Kim; HJ Kim; E Kinney; A Kiss; E Kistenev; A Kiyomichi; C Klein-Boesing; H Kobayashi; V Kochetkov; R Kohara; B Komkov; M Konno; D Kotchetkov; A Kozlov; PJ Kroon; CH Kuberg; GJ Kunde; K Kurita; MJ Kweon; Y Kwon; GS Kyle; R Lacey; JG Lajoie; Y Le Bornec; A Lebedev; S Leckey; DM Lee; MJ Leitch; MAL Leite; X Li; XH Li; H Lim; A Litvinenko; MX Liu; CF Maguire; YI Makdisi; A Malakhov; VI Manko; Y Mao; G Martinez; H Masui; F Matathias; T Matsumoto; MC McCain; PL McGaughey; Y Miake; TE Miller; A Milov; S Mioduszewski; GC Mishra; JT Mitchell; AK Mohanty; DP Morrison; JM Moss; D Mukhopadhyay; M Muniruzzaman; S Nagamiya; JL Nagle; T Nakamura; J Newby; AS Nyanin; Joakim Nystrand; E O'Brien; CA Ogilvie; H Ohnishi; ID Ojha; H Okada; K Okada; Anders Oskarsson; Ingvar Otterlund; K Oyama; K Ozawa; D Pal; APT Palounek; V Pantuev; V Papavassiliou; J Park; WJ Park; SF Pate; H Pei; V Penev; JC Peng; H Pereira; V Peresedov; A Pierson; C Pinkenburg; RP Pisani; ML Purschke; AK Purwar; J Qualls; J Rak; I Ravinovich; KF Read; M Reuter; K Reygers; V Riabov; Y Riabov; G Roche; A Romana; M Rosati; Sarah Rosendahl; P Rosnet; VL Rykov; SS Ryu; N Saito; T Sakaguchi; S Sakai; V Samsonov; L Sanfratello; R Santo; HD Sato; S Sato; S Sawada; Y Schutz; V Semenov; R Seto; TK Shea; I Shein; TA Shibata; K Shigaki; M Shimomura; A Sickles; CL Silva; D Silvermyr; KS Sim; A Soldatov; RA Soltz; WE Sondheim; S Sorensen; IV Sourikova; F Staley; PW Stankus; Evert Stenlund; M Stepanov; A Ster; SP Stoll; T Sugitate; JP Sullivan; S Takagi; EM Takagui; A Taketani; KH Tanaka; Y Tanaka; K Tanida; MJ Tannenbaum; A Taranenko; P Tarjan; TL Thomas; M Togawa; J Tojo; H Torii; RS Towell; VN Tram; I Tserruya; Y Tsuchimoto; Henrik Tydesjö; N Tyurin; TJ Uam; HW van Hecke; J Velkovska; M Velkovsky; V Veszpremi; AA Vinogradov; MA Volkov; E Vznuzdaev; XR Wang; Y Watanabe; SN White; N Willis; FK Wohn; CL Woody; W Xie; A Yanovich; S Yokkaichi; GR Young; IE Yushmanov; WA Zajc; O Zaudtke; C Zhang; S Zhou; J Zimanyi; L Zolin; X Zong

doi:10.1103/PhysRevLett.93.202002

Double helicity asymmetry in inclusive midrapidity pi(0) production for polarized p+p collisions at root s=200 GeV

SS Adler, S Afanasiev, C Aidala, NN Ajitanand, Y Akiba, A Al-Jamel, J Alexander, K Aoki, L Aphecetche, R Armendariz, SH Aronson, R Averbeck, TC Awes, V Babintsev, A Baldisseri, KN Barish, PD Barnes, B Bassalleck, S Bathe, S BatsouliV Baublis, F Bauer, A Bazilevsky, S Belikov, MT Bjorndal, JG Boissevain, H Borel, ML Brooks, DS Brown, N Bruner, D Bucher, H Buesching, V Bumazhnov, G Bunce, JM Burward-Hoy, S Butsyk, X Camard, P Chand, WC Chang, S Chernichenko, CY Chi, J Chiba, M Chiu, IJ Choi, RK Choudhury, T Chujo, V Cianciolo, Y Cobigo, BA Cole, MP Comets, P Constantin, M Csanad, T Csorgo, JP Cussonneau, D d'Enterria, K Das, G David, F Deak, H Delagrange, A Denisov, A Deshpande, EJ Desmond, A Devismes, O Dietzsch, JL Drachenberg, O Drapier, A Drees, A Durum, D Dutta, V Dzhordzhadze, YV Efremenko, H En'yo, B Espagnon, S Esumi, DE Fields, C Finck, F Fleuret, SL Fokin, BD Fox, Z Fraenkel, JE Frantz, A Franz, AD Frawley, Y Fukao, SY Fung, S Gadrat, M Germain, A Glenn, M Gonin, J Gosset, Y Goto, RG de Cassagnac, N Grau, SV Greene, MG Perdekamp, Hans-Åke Gustafsson, T Hachiya, JS Haggerty, H Hamagaki, AG Hansen, EP Hartouni, M Harvey, K Hasuko, R Hayano, X He, M Heffner, TK Hemmick, JM Heuser, P Hidas, H Hiejima, JC Hill, R Hobbs, W Holzmann, K Homma, B Hong, A Hoover, T Horaguchi, T Ichihara, VV Ikonnikov, K Imai, M Inaba, M Inuzuka, D Isenhower, L Isenhower, M Ishihara, M Issah, A Isupov, BV Jacak, J Jia, O Jinnouchi, BM Johnson, SC Johnson, KS Joo, D Jouan, F Kajihara, S Kametani, N Kamihara, M Kaneta, JH Kang, K Katou, T Kawabata, A Kazantsev, S Kelly, B Khachaturov, A Khanzadeev, J Kikuchi, DJ Kim, E Kim, GB Kim, HJ Kim, E Kinney, A Kiss, E Kistenev, A Kiyomichi, C Klein-Boesing, H Kobayashi, V Kochetkov, R Kohara, B Komkov, M Konno, D Kotchetkov, A Kozlov, PJ Kroon, CH Kuberg, GJ Kunde, K Kurita, MJ Kweon, Y Kwon, GS Kyle, R Lacey, JG Lajoie, Y Le Bornec, A Lebedev, S Leckey, DM Lee, MJ Leitch, MAL Leite, X Li, XH Li, H Lim, A Litvinenko, MX Liu, CF Maguire, YI Makdisi, A Malakhov, VI Manko, Y Mao, G Martinez, H Masui, F Matathias, T Matsumoto, MC McCain, PL McGaughey, Y Miake, TE Miller, A Milov, S Mioduszewski, GC Mishra, JT Mitchell, AK Mohanty, DP Morrison, JM Moss, D Mukhopadhyay, M Muniruzzaman, S Nagamiya, JL Nagle, T Nakamura, J Newby, AS Nyanin, Joakim Nystrand, E O'Brien, CA Ogilvie, H Ohnishi, ID Ojha, H Okada, K Okada, Anders Oskarsson, Ingvar Otterlund, K Oyama, K Ozawa, D Pal, APT Palounek, V Pantuev, V Papavassiliou, J Park, WJ Park, SF Pate, H Pei, V Penev, JC Peng, H Pereira, V Peresedov, A Pierson, C Pinkenburg, RP Pisani, ML Purschke, AK Purwar, J Qualls, J Rak, I Ravinovich, KF Read, M Reuter, K Reygers, V Riabov, Y Riabov, G Roche, A Romana, M Rosati, Sarah Rosendahl, P Rosnet, VL Rykov, SS Ryu, N Saito, T Sakaguchi, S Sakai, V Samsonov, L Sanfratello, R Santo, HD Sato, S Sato, S Sawada, Y Schutz, V Semenov, R Seto, TK Shea, I Shein, TA Shibata, K Shigaki, M Shimomura, A Sickles, CL Silva, D Silvermyr, KS Sim, A Soldatov, RA Soltz, WE Sondheim, S Sorensen, IV Sourikova, F Staley, PW Stankus, Evert Stenlund, M Stepanov, A Ster, SP Stoll, T Sugitate, JP Sullivan, S Takagi, EM Takagui, A Taketani, KH Tanaka, Y Tanaka, K Tanida, MJ Tannenbaum, A Taranenko, P Tarjan, TL Thomas, M Togawa, J Tojo, H Torii, RS Towell, VN Tram, I Tserruya, Y Tsuchimoto, Henrik Tydesjö, N Tyurin, TJ Uam, HW van Hecke, J Velkovska, M Velkovsky, V Veszpremi, AA Vinogradov, MA Volkov, E Vznuzdaev, XR Wang, Y Watanabe, SN White, N Willis, FK Wohn, CL Woody, W Xie, A Yanovich, S Yokkaichi, GR Young, IE Yushmanov, WA Zajc, O Zaudtke, C Zhang, S Zhou, J Zimanyi, L Zolin, X Zong

Particle and nuclear physics

Research output: Contribution to journal › Article › peer-review

Abstract

We present a measurement of the double longitudinal spin asymmetry in inclusive pi(0) production in polarized proton-proton collisions at roots=200 GeV. The data were taken at the Relativistic Heavy Ion Collider with average beam polarizations of 0.27. The measurements are the first in a program to study the longitudinal spin structure of the proton, using strongly interacting probes, at collider energies. The asymmetry is presented for transverse momenta 1-5 GeV/c at midrapidity, where next-to-leading-order perturbative quantum chromodynamic (NLO pQCD) calculations well describe the unpolarized cross section. The observed asymmetry is small and is compared to a NLO pQCD calculation with a range of polarized gluon distributions.

Original language	English
Article number	202002
Journal	Physical Review Letters
Volume	93
Issue number	20: 202002
DOIs	https://doi.org/10.1103/PhysRevLett.93.202002
Publication status	Published - 2004

Subject classification (UKÄ)

Subatomic Physics

Access to Document

10.1103/PhysRevLett.93.202002

Cite this

Adler, SS., Afanasiev, S., Aidala, C., Ajitanand, NN., Akiba, Y., Al-Jamel, A., Alexander, J., Aoki, K., Aphecetche, L., Armendariz, R., Aronson, SH., Averbeck, R., Awes, TC., Babintsev, V., Baldisseri, A., Barish, KN., Barnes, PD., Bassalleck, B., Bathe, S., ... Zong, X. (2004). Double helicity asymmetry in inclusive midrapidity pi(0) production for polarized p+p collisions at root s=200 GeV. Physical Review Letters, 93(20: 202002), Article 202002. https://doi.org/10.1103/PhysRevLett.93.202002

@article{a5da1d3b738e484dbcf998cbf9ca467d,

title = "Double helicity asymmetry in inclusive midrapidity pi(0) production for polarized p+p collisions at root s=200 GeV",

abstract = "We present a measurement of the double longitudinal spin asymmetry in inclusive pi(0) production in polarized proton-proton collisions at roots=200 GeV. The data were taken at the Relativistic Heavy Ion Collider with average beam polarizations of 0.27. The measurements are the first in a program to study the longitudinal spin structure of the proton, using strongly interacting probes, at collider energies. The asymmetry is presented for transverse momenta 1-5 GeV/c at midrapidity, where next-to-leading-order perturbative quantum chromodynamic (NLO pQCD) calculations well describe the unpolarized cross section. The observed asymmetry is small and is compared to a NLO pQCD calculation with a range of polarized gluon distributions.",

author = "SS Adler and S Afanasiev and C Aidala and NN Ajitanand and Y Akiba and A Al-Jamel and J Alexander and K Aoki and L Aphecetche and R Armendariz and SH Aronson and R Averbeck and TC Awes and V Babintsev and A Baldisseri and KN Barish and PD Barnes and B Bassalleck and S Bathe and S Batsouli and V Baublis and F Bauer and A Bazilevsky and S Belikov and MT Bjorndal and JG Boissevain and H Borel and ML Brooks and DS Brown and N Bruner and D Bucher and H Buesching and V Bumazhnov and G Bunce and JM Burward-Hoy and S Butsyk and X Camard and P Chand and WC Chang and S Chernichenko and CY Chi and J Chiba and M Chiu and IJ Choi and RK Choudhury and T Chujo and V Cianciolo and Y Cobigo and BA Cole and MP Comets and P Constantin and M Csanad and T Csorgo and JP Cussonneau and D d'Enterria and K Das and G David and F Deak and H Delagrange and A Denisov and A Deshpande and EJ Desmond and A Devismes and O Dietzsch and JL Drachenberg and O Drapier and A Drees and A Durum and D Dutta and V Dzhordzhadze and YV Efremenko and H En'yo and B Espagnon and S Esumi and DE Fields and C Finck and F Fleuret and SL Fokin and BD Fox and Z Fraenkel and JE Frantz and A Franz and AD Frawley and Y Fukao and SY Fung and S Gadrat and M Germain and A Glenn and M Gonin and J Gosset and Y Goto and {de Cassagnac}, RG and N Grau and SV Greene and MG Perdekamp and Hans-{\AA}ke Gustafsson and T Hachiya and JS Haggerty and H Hamagaki and AG Hansen and EP Hartouni and M Harvey and K Hasuko and R Hayano and X He and M Heffner and TK Hemmick and JM Heuser and P Hidas and H Hiejima and JC Hill and R Hobbs and W Holzmann and K Homma and B Hong and A Hoover and T Horaguchi and T Ichihara and VV Ikonnikov and K Imai and M Inaba and M Inuzuka and D Isenhower and L Isenhower and M Ishihara and M Issah and A Isupov and BV Jacak and J Jia and O Jinnouchi and BM Johnson and SC Johnson and KS Joo and D Jouan and F Kajihara and S Kametani and N Kamihara and M Kaneta and JH Kang and K Katou and T Kawabata and A Kazantsev and S Kelly and B Khachaturov and A Khanzadeev and J Kikuchi and DJ Kim and E Kim and GB Kim and HJ Kim and E Kinney and A Kiss and E Kistenev and A Kiyomichi and C Klein-Boesing and H Kobayashi and V Kochetkov and R Kohara and B Komkov and M Konno and D Kotchetkov and A Kozlov and PJ Kroon and CH Kuberg and GJ Kunde and K Kurita and MJ Kweon and Y Kwon and GS Kyle and R Lacey and JG Lajoie and {Le Bornec}, Y and A Lebedev and S Leckey and DM Lee and MJ Leitch and MAL Leite and X Li and XH Li and H Lim and A Litvinenko and MX Liu and CF Maguire and YI Makdisi and A Malakhov and VI Manko and Y Mao and G Martinez and H Masui and F Matathias and T Matsumoto and MC McCain and PL McGaughey and Y Miake and TE Miller and A Milov and S Mioduszewski and GC Mishra and JT Mitchell and AK Mohanty and DP Morrison and JM Moss and D Mukhopadhyay and M Muniruzzaman and S Nagamiya and JL Nagle and T Nakamura and J Newby and AS Nyanin and Joakim Nystrand and E O'Brien and CA Ogilvie and H Ohnishi and ID Ojha and H Okada and K Okada and Anders Oskarsson and Ingvar Otterlund and K Oyama and K Ozawa and D Pal and APT Palounek and V Pantuev and V Papavassiliou and J Park and WJ Park and SF Pate and H Pei and V Penev and JC Peng and H Pereira and V Peresedov and A Pierson and C Pinkenburg and RP Pisani and ML Purschke and AK Purwar and J Qualls and J Rak and I Ravinovich and KF Read and M Reuter and K Reygers and V Riabov and Y Riabov and G Roche and A Romana and M Rosati and Sarah Rosendahl and P Rosnet and VL Rykov and SS Ryu and N Saito and T Sakaguchi and S Sakai and V Samsonov and L Sanfratello and R Santo and HD Sato and S Sato and S Sawada and Y Schutz and V Semenov and R Seto and TK Shea and I Shein and TA Shibata and K Shigaki and M Shimomura and A Sickles and CL Silva and D Silvermyr and KS Sim and A Soldatov and RA Soltz and WE Sondheim and S Sorensen and IV Sourikova and F Staley and PW Stankus and Evert Stenlund and M Stepanov and A Ster and SP Stoll and T Sugitate and JP Sullivan and S Takagi and EM Takagui and A Taketani and KH Tanaka and Y Tanaka and K Tanida and MJ Tannenbaum and A Taranenko and P Tarjan and TL Thomas and M Togawa and J Tojo and H Torii and RS Towell and VN Tram and I Tserruya and Y Tsuchimoto and Henrik Tydesj{\"o} and N Tyurin and TJ Uam and {van Hecke}, HW and J Velkovska and M Velkovsky and V Veszpremi and AA Vinogradov and MA Volkov and E Vznuzdaev and XR Wang and Y Watanabe and SN White and N Willis and FK Wohn and CL Woody and W Xie and A Yanovich and S Yokkaichi and GR Young and IE Yushmanov and WA Zajc and O Zaudtke and C Zhang and S Zhou and J Zimanyi and L Zolin and X Zong",

year = "2004",

doi = "10.1103/PhysRevLett.93.202002",

language = "English",

volume = "93",

journal = "Physical Review Letters",

issn = "1079-7114",

publisher = "American Physical Society",

number = "20: 202002",

}

Adler, SS, Afanasiev, S, Aidala, C, Ajitanand, NN, Akiba, Y, Al-Jamel, A, Alexander, J, Aoki, K, Aphecetche, L, Armendariz, R, Aronson, SH, Averbeck, R, Awes, TC, Babintsev, V, Baldisseri, A, Barish, KN, Barnes, PD, Bassalleck, B, Bathe, S, Batsouli, S, Baublis, V, Bauer, F, Bazilevsky, A, Belikov, S, Bjorndal, MT, Boissevain, JG, Borel, H, Brooks, ML, Brown, DS, Bruner, N, Bucher, D, Buesching, H, Bumazhnov, V, Bunce, G, Burward-Hoy, JM, Butsyk, S, Camard, X, Chand, P, Chang, WC, Chernichenko, S, Chi, CY, Chiba, J, Chiu, M, Choi, IJ, Choudhury, RK, Chujo, T, Cianciolo, V, Cobigo, Y, Cole, BA, Comets, MP, Constantin, P, Csanad, M, Csorgo, T, Cussonneau, JP, d'Enterria, D, Das, K, David, G, Deak, F, Delagrange, H, Denisov, A, Deshpande, A, Desmond, EJ, Devismes, A, Dietzsch, O, Drachenberg, JL, Drapier, O, Drees, A, Durum, A, Dutta, D, Dzhordzhadze, V, Efremenko, YV, En'yo, H, Espagnon, B, Esumi, S, Fields, DE, Finck, C, Fleuret, F, Fokin, SL, Fox, BD, Fraenkel, Z, Frantz, JE, Franz, A, Frawley, AD, Fukao, Y, Fung, SY, Gadrat, S, Germain, M, Glenn, A, Gonin, M, Gosset, J, Goto, Y, de Cassagnac, RG, Grau, N, Greene, SV, Perdekamp, MG, Gustafsson, H-Å, Hachiya, T, Haggerty, JS, Hamagaki, H, Hansen, AG, Hartouni, EP, Harvey, M, Hasuko, K, Hayano, R, He, X, Heffner, M, Hemmick, TK, Heuser, JM, Hidas, P, Hiejima, H, Hill, JC, Hobbs, R, Holzmann, W, Homma, K, Hong, B, Hoover, A, Horaguchi, T, Ichihara, T, Ikonnikov, VV, Imai, K, Inaba, M, Inuzuka, M, Isenhower, D, Isenhower, L, Ishihara, M, Issah, M, Isupov, A, Jacak, BV, Jia, J, Jinnouchi, O, Johnson, BM, Johnson, SC, Joo, KS, Jouan, D, Kajihara, F, Kametani, S, Kamihara, N, Kaneta, M, Kang, JH, Katou, K, Kawabata, T, Kazantsev, A, Kelly, S, Khachaturov, B, Khanzadeev, A, Kikuchi, J, Kim, DJ, Kim, E, Kim, GB, Kim, HJ, Kinney, E, Kiss, A, Kistenev, E, Kiyomichi, A, Klein-Boesing, C, Kobayashi, H, Kochetkov, V, Kohara, R, Komkov, B, Konno, M, Kotchetkov, D, Kozlov, A, Kroon, PJ, Kuberg, CH, Kunde, GJ, Kurita, K, Kweon, MJ, Kwon, Y, Kyle, GS, Lacey, R, Lajoie, JG, Le Bornec, Y, Lebedev, A, Leckey, S, Lee, DM, Leitch, MJ, Leite, MAL, Li, X, Li, XH, Lim, H, Litvinenko, A, Liu, MX, Maguire, CF, Makdisi, YI, Malakhov, A, Manko, VI, Mao, Y, Martinez, G, Masui, H, Matathias, F, Matsumoto, T, McCain, MC, McGaughey, PL, Miake, Y, Miller, TE, Milov, A, Mioduszewski, S, Mishra, GC, Mitchell, JT, Mohanty, AK, Morrison, DP, Moss, JM, Mukhopadhyay, D, Muniruzzaman, M, Nagamiya, S, Nagle, JL, Nakamura, T, Newby, J, Nyanin, AS, Nystrand, J, O'Brien, E, Ogilvie, CA, Ohnishi, H, Ojha, ID, Okada, H, Okada, K, Oskarsson, A , Otterlund, I, Oyama, K, Ozawa, K, Pal, D, Palounek, APT, Pantuev, V, Papavassiliou, V, Park, J, Park, WJ, Pate, SF, Pei, H, Penev, V, Peng, JC, Pereira, H, Peresedov, V, Pierson, A, Pinkenburg, C, Pisani, RP, Purschke, ML, Purwar, AK, Qualls, J, Rak, J, Ravinovich, I, Read, KF, Reuter, M, Reygers, K, Riabov, V, Riabov, Y, Roche, G, Romana, A, Rosati, M, Rosendahl, S, Rosnet, P, Rykov, VL, Ryu, SS, Saito, N, Sakaguchi, T, Sakai, S, Samsonov, V, Sanfratello, L, Santo, R, Sato, HD, Sato, S, Sawada, S, Schutz, Y, Semenov, V, Seto, R, Shea, TK, Shein, I, Shibata, TA, Shigaki, K, Shimomura, M, Sickles, A, Silva, CL, Silvermyr, D, Sim, KS, Soldatov, A, Soltz, RA, Sondheim, WE, Sorensen, S, Sourikova, IV, Staley, F, Stankus, PW, Stenlund, E, Stepanov, M, Ster, A, Stoll, SP, Sugitate, T, Sullivan, JP, Takagi, S, Takagui, EM, Taketani, A, Tanaka, KH, Tanaka, Y, Tanida, K, Tannenbaum, MJ, Taranenko, A, Tarjan, P, Thomas, TL, Togawa, M, Tojo, J, Torii, H, Towell, RS, Tram, VN, Tserruya, I, Tsuchimoto, Y, Tydesjö, H, Tyurin, N, Uam, TJ, van Hecke, HW, Velkovska, J, Velkovsky, M, Veszpremi, V, Vinogradov, AA, Volkov, MA, Vznuzdaev, E, Wang, XR, Watanabe, Y, White, SN, Willis, N, Wohn, FK, Woody, CL, Xie, W, Yanovich, A, Yokkaichi, S, Young, GR, Yushmanov, IE, Zajc, WA, Zaudtke, O, Zhang, C, Zhou, S, Zimanyi, J, Zolin, L & Zong, X 2004, 'Double helicity asymmetry in inclusive midrapidity pi(0) production for polarized p+p collisions at root s=200 GeV', Physical Review Letters, vol. 93, no. 20: 202002, 202002. https://doi.org/10.1103/PhysRevLett.93.202002

TY - JOUR

T1 - Double helicity asymmetry in inclusive midrapidity pi(0) production for polarized p+p collisions at root s=200 GeV

AU - Adler, SS

AU - Afanasiev, S

AU - Aidala, C

AU - Ajitanand, NN

AU - Akiba, Y

AU - Al-Jamel, A

AU - Alexander, J

AU - Aoki, K

AU - Aphecetche, L

AU - Armendariz, R

AU - Aronson, SH

AU - Averbeck, R

AU - Awes, TC

AU - Babintsev, V

AU - Baldisseri, A

AU - Barish, KN

AU - Barnes, PD

AU - Bassalleck, B

AU - Bathe, S

AU - Batsouli, S

AU - Baublis, V

AU - Bauer, F

AU - Bazilevsky, A

AU - Belikov, S

AU - Bjorndal, MT

AU - Boissevain, JG

AU - Borel, H

AU - Brooks, ML

AU - Brown, DS

AU - Bruner, N

AU - Bucher, D

AU - Buesching, H

AU - Bumazhnov, V

AU - Bunce, G

AU - Burward-Hoy, JM

AU - Butsyk, S

AU - Camard, X

AU - Chand, P

AU - Chang, WC

AU - Chernichenko, S

AU - Chi, CY

AU - Chiba, J

AU - Chiu, M

AU - Choi, IJ

AU - Choudhury, RK

AU - Chujo, T

AU - Cianciolo, V

AU - Cobigo, Y

AU - Cole, BA

AU - Comets, MP

AU - Constantin, P

AU - Csanad, M

AU - Csorgo, T

AU - Cussonneau, JP

AU - d'Enterria, D

AU - Das, K

AU - David, G

AU - Deak, F

AU - Delagrange, H

AU - Denisov, A

AU - Deshpande, A

AU - Desmond, EJ

AU - Devismes, A

AU - Dietzsch, O

AU - Drachenberg, JL

AU - Drapier, O

AU - Drees, A

AU - Durum, A

AU - Dutta, D

AU - Dzhordzhadze, V

AU - Efremenko, YV

AU - En'yo, H

AU - Espagnon, B

AU - Esumi, S

AU - Fields, DE

AU - Finck, C

AU - Fleuret, F

AU - Fokin, SL

AU - Fox, BD

AU - Fraenkel, Z

AU - Frantz, JE

AU - Franz, A

AU - Frawley, AD

AU - Fukao, Y

AU - Fung, SY

AU - Gadrat, S

AU - Germain, M

AU - Glenn, A

AU - Gonin, M

AU - Gosset, J

AU - Goto, Y

AU - de Cassagnac, RG

AU - Grau, N

AU - Greene, SV

AU - Perdekamp, MG

AU - Gustafsson, Hans-Åke

AU - Hachiya, T

AU - Haggerty, JS

AU - Hamagaki, H

AU - Hansen, AG

AU - Hartouni, EP

AU - Harvey, M

AU - Hasuko, K

AU - Hayano, R

AU - He, X

AU - Heffner, M

AU - Hemmick, TK

AU - Heuser, JM

AU - Hidas, P

AU - Hiejima, H

AU - Hill, JC

AU - Hobbs, R

AU - Holzmann, W

AU - Homma, K

AU - Hong, B

AU - Hoover, A

AU - Horaguchi, T

AU - Ichihara, T

AU - Ikonnikov, VV

AU - Imai, K

AU - Inaba, M

AU - Inuzuka, M

AU - Isenhower, D

AU - Isenhower, L

AU - Ishihara, M

AU - Issah, M

AU - Isupov, A

AU - Jacak, BV

AU - Jia, J

AU - Jinnouchi, O

AU - Johnson, BM

AU - Johnson, SC

AU - Joo, KS

AU - Jouan, D

AU - Kajihara, F

AU - Kametani, S

AU - Kamihara, N

AU - Kaneta, M

AU - Kang, JH

AU - Katou, K

AU - Kawabata, T

AU - Kazantsev, A

AU - Kelly, S

AU - Khachaturov, B

AU - Khanzadeev, A

AU - Kikuchi, J

AU - Kim, DJ

AU - Kim, E

AU - Kim, GB

AU - Kim, HJ

AU - Kinney, E

AU - Kiss, A

AU - Kistenev, E

AU - Kiyomichi, A

AU - Klein-Boesing, C

AU - Kobayashi, H

AU - Kochetkov, V

AU - Kohara, R

AU - Komkov, B

AU - Konno, M

AU - Kotchetkov, D

AU - Kozlov, A

AU - Kroon, PJ

AU - Kuberg, CH

AU - Kunde, GJ

AU - Kurita, K

AU - Kweon, MJ

AU - Kwon, Y

AU - Kyle, GS

AU - Lacey, R

AU - Lajoie, JG

AU - Le Bornec, Y

AU - Lebedev, A

AU - Leckey, S

AU - Lee, DM

AU - Leitch, MJ

AU - Leite, MAL

AU - Li, X

AU - Li, XH

AU - Lim, H

AU - Litvinenko, A

AU - Liu, MX

AU - Maguire, CF

AU - Makdisi, YI

AU - Malakhov, A

AU - Manko, VI

AU - Mao, Y

AU - Martinez, G

AU - Masui, H

AU - Matathias, F

AU - Matsumoto, T

AU - McCain, MC

AU - McGaughey, PL

AU - Miake, Y

AU - Miller, TE

AU - Milov, A

AU - Mioduszewski, S

AU - Mishra, GC

AU - Mitchell, JT

AU - Mohanty, AK

AU - Morrison, DP

AU - Moss, JM

AU - Mukhopadhyay, D

AU - Muniruzzaman, M

AU - Nagamiya, S

AU - Nagle, JL

AU - Nakamura, T

AU - Newby, J

AU - Nyanin, AS

AU - Nystrand, Joakim

AU - O'Brien, E

AU - Ogilvie, CA

AU - Ohnishi, H

AU - Ojha, ID

AU - Okada, H

AU - Okada, K

AU - Oskarsson, Anders

AU - Otterlund, Ingvar

AU - Oyama, K

AU - Ozawa, K

AU - Pal, D

AU - Palounek, APT

AU - Pantuev, V

AU - Papavassiliou, V

AU - Park, J

AU - Park, WJ

AU - Pate, SF

AU - Pei, H

AU - Penev, V

AU - Peng, JC

AU - Pereira, H

AU - Peresedov, V

AU - Pierson, A

AU - Pinkenburg, C

AU - Pisani, RP

AU - Purschke, ML

AU - Purwar, AK

AU - Qualls, J

AU - Rak, J

AU - Ravinovich, I

AU - Read, KF

AU - Reuter, M

AU - Reygers, K

AU - Riabov, V

AU - Riabov, Y

AU - Roche, G

AU - Romana, A

AU - Rosati, M

AU - Rosendahl, Sarah

AU - Rosnet, P

AU - Rykov, VL

AU - Ryu, SS

AU - Saito, N

AU - Sakaguchi, T

AU - Sakai, S

AU - Samsonov, V

AU - Sanfratello, L

AU - Santo, R

AU - Sato, HD

AU - Sato, S

AU - Sawada, S

AU - Schutz, Y

AU - Semenov, V

AU - Seto, R

AU - Shea, TK

AU - Shein, I

AU - Shibata, TA

AU - Shigaki, K

AU - Shimomura, M

AU - Sickles, A

AU - Silva, CL

AU - Silvermyr, D

AU - Sim, KS

AU - Soldatov, A

AU - Soltz, RA

AU - Sondheim, WE

AU - Sorensen, S

AU - Sourikova, IV

AU - Staley, F

AU - Stankus, PW

AU - Stenlund, Evert

AU - Stepanov, M

AU - Ster, A

AU - Stoll, SP

AU - Sugitate, T

AU - Sullivan, JP

AU - Takagi, S

AU - Takagui, EM

AU - Taketani, A

AU - Tanaka, KH

AU - Tanaka, Y

AU - Tanida, K

AU - Tannenbaum, MJ

AU - Taranenko, A

AU - Tarjan, P

AU - Thomas, TL

AU - Togawa, M

AU - Tojo, J

AU - Torii, H

AU - Towell, RS

AU - Tram, VN

AU - Tserruya, I

AU - Tsuchimoto, Y

AU - Tydesjö, Henrik

AU - Tyurin, N

AU - Uam, TJ

AU - van Hecke, HW

AU - Velkovska, J

AU - Velkovsky, M

AU - Veszpremi, V

AU - Vinogradov, AA

AU - Volkov, MA

AU - Vznuzdaev, E

AU - Wang, XR

AU - Watanabe, Y

AU - White, SN

AU - Willis, N

AU - Wohn, FK

AU - Woody, CL

AU - Xie, W

AU - Yanovich, A

AU - Yokkaichi, S

AU - Young, GR

AU - Yushmanov, IE

AU - Zajc, WA

AU - Zaudtke, O

AU - Zhang, C

AU - Zhou, S

AU - Zimanyi, J

AU - Zolin, L

AU - Zong, X

PY - 2004

Y1 - 2004

N2 - We present a measurement of the double longitudinal spin asymmetry in inclusive pi(0) production in polarized proton-proton collisions at roots=200 GeV. The data were taken at the Relativistic Heavy Ion Collider with average beam polarizations of 0.27. The measurements are the first in a program to study the longitudinal spin structure of the proton, using strongly interacting probes, at collider energies. The asymmetry is presented for transverse momenta 1-5 GeV/c at midrapidity, where next-to-leading-order perturbative quantum chromodynamic (NLO pQCD) calculations well describe the unpolarized cross section. The observed asymmetry is small and is compared to a NLO pQCD calculation with a range of polarized gluon distributions.

AB - We present a measurement of the double longitudinal spin asymmetry in inclusive pi(0) production in polarized proton-proton collisions at roots=200 GeV. The data were taken at the Relativistic Heavy Ion Collider with average beam polarizations of 0.27. The measurements are the first in a program to study the longitudinal spin structure of the proton, using strongly interacting probes, at collider energies. The asymmetry is presented for transverse momenta 1-5 GeV/c at midrapidity, where next-to-leading-order perturbative quantum chromodynamic (NLO pQCD) calculations well describe the unpolarized cross section. The observed asymmetry is small and is compared to a NLO pQCD calculation with a range of polarized gluon distributions.

U2 - 10.1103/PhysRevLett.93.202002

DO - 10.1103/PhysRevLett.93.202002

M3 - Article

C2 - 15600917

SN - 1079-7114

VL - 93

JO - Physical Review Letters

JF - Physical Review Letters

IS - 20: 202002

M1 - 202002

ER -

Double helicity asymmetry in inclusive midrapidity pi(0) production for polarized p+p collisions at root s=200 GeV

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