************************************************************************** These are published data of the HERMES Collaboration. You are free to use these data in any publication. However, you must make a reference to the following publication: A. Airapetian et al, Phys. Lett. B 682 (2010) 345-350 ************************************************************************** ************************************************************************** These are published data of the HERMES Collaboration. You are free to use these data in any publication. However, you must make a reference to the following publication: A. Airapetian et al, Phys. Lett. B 682 (2010) 345-350 ************************************************************************** Fig.1 (top panel) -------------------------------------------------------------------------------------------- M_X^2 data stat. data stat. PYTHIA stat. PYTHIA stat. [GeV^2] N_pi^+ error N_pi^- error N_pi^+ error N_pi^- error -------------------------------------------------------------------------------------------- -1.9 0.0003487 0.0000967 0.0000536 0.0000379 0.0001724 0.0000431 0.0000862 0.0000305 -1.7 0.0002682 0.0000848 0.0003487 0.0000967 0.0002262 0.0000494 0.0001293 0.0000373 -1.5 0.0004291 0.0001073 0.0002146 0.0000759 0.0003017 0.0000570 0.0000646 0.0000264 -1.3 0.0008583 0.0001517 0.0002146 0.0000759 0.0002262 0.0000494 0.0001724 0.0000431 -1.1 0.0008583 0.0001517 0.0001609 0.0000657 0.0002370 0.0000505 0.0001939 0.0000457 -0.9 0.0013411 0.0001897 0.0003755 0.0001004 0.0004525 0.0000698 0.0001724 0.0000431 -0.7 0.0014484 0.0001971 0.0003219 0.0000929 0.0004956 0.0000731 0.0003232 0.0000590 -0.5 0.0019580 0.0002292 0.0005096 0.0001169 0.0005818 0.0000792 0.0002909 0.0000560 -0.3 0.0034331 0.0003035 0.0009388 0.0001587 0.0006141 0.0000813 0.0003124 0.0000580 -0.1 0.0047206 0.0003558 0.0012338 0.0001819 0.0010127 0.0001045 0.0005387 0.0000762 0.1 0.0071077 0.0004366 0.0019043 0.0002260 0.0015621 0.0001297 0.0007757 0.0000914 0.3 0.0097630 0.0005117 0.0020116 0.0002323 0.0022624 0.0001561 0.0013682 0.0001214 0.5 0.0126865 0.0005833 0.0030308 0.0002851 0.0034582 0.0001930 0.0017022 0.0001354 0.7 0.0167902 0.0006711 0.0033527 0.0002999 0.0047080 0.0002252 0.0026072 0.0001676 0.9 0.0214572 0.0007586 0.0059275 0.0003987 0.0071427 0.0002774 0.0037707 0.0002016 1.1 0.0239784 0.0008020 0.0084219 0.0004753 0.0092328 0.0003154 0.0047187 0.0002255 1.3 0.0224496 0.0007760 0.0103531 0.0005270 0.0122601 0.0003634 0.0065502 0.0002656 1.5 0.0256413 0.0008293 0.0112382 0.0005490 0.0151042 0.0004034 0.0077137 0.0002883 1.7 0.0263655 0.0008409 0.0131425 0.0005937 0.0179807 0.0004401 0.0095236 0.0003203 1.9 0.0259632 0.0008345 0.0148859 0.0006319 0.0209973 0.0004756 0.0112689 0.0003484 2.1 0.0281893 0.0008695 0.0150200 0.0006347 0.0236475 0.0005047 0.0123570 0.0003649 2.3 0.0280552 0.0008675 0.0166293 0.0006678 0.0259853 0.0005291 0.0144363 0.0003944 2.5 0.0294500 0.0008888 0.0161733 0.0006586 0.0262223 0.0005315 0.0151904 0.0004045 2.7 0.0309251 0.0009107 0.0168170 0.0006716 0.0287756 0.0005568 0.0157937 0.0004125 2.9 0.0296645 0.0008920 0.0156369 0.0006476 0.0296375 0.0005651 0.0163755 0.0004200 3.1 0.0301473 0.0008992 0.0159856 0.0006548 0.0305963 0.0005741 0.0163539 0.0004197 3.3 0.0294768 0.0008892 0.0149395 0.0006330 0.0308764 0.0005768 0.0167095 0.0004243 3.5 0.0304960 0.0009044 0.0173535 0.0006822 0.0314690 0.0005823 0.0174421 0.0004335 3.7 0.0283771 0.0008724 0.0164147 0.0006635 0.0326971 0.0005935 0.0172697 0.0004313 3.9 0.0313811 0.0009174 0.0162002 0.0006592 0.0327941 0.0005944 0.0174205 0.0004332 4.1 0.0296109 0.0008912 0.0167366 0.0006700 0.0322554 0.0005895 0.0177222 0.0004370 4.3 0.0307910 0.0009088 0.0162806 0.0006608 0.0330634 0.0005968 0.0182177 0.0004430 4.5 0.0324003 0.0009322 0.0159051 0.0006531 0.0329557 0.0005959 0.0183686 0.0004448 4.7 0.0311665 0.0009143 0.0163879 0.0006630 0.0330634 0.0005968 0.0186379 0.0004481 4.9 0.0315152 0.0009194 0.0170048 0.0006753 0.0313504 0.0005812 0.0182608 0.0004435 5.1 0.0303619 0.0009024 0.0169243 0.0006737 0.0318999 0.0005862 0.0183901 0.0004451 5.3 0.0317566 0.0009229 0.0163074 0.0006614 0.0321369 0.0005884 0.0182824 0.0004438 5.5 0.0302010 0.0009000 0.0171121 0.0006775 0.0318460 0.0005857 0.0178191 0.0004381 5.7 0.0310324 0.0009123 0.0164952 0.0006652 0.0310488 0.0005784 0.0180130 0.0004405 5.9 0.0299864 0.0008968 0.0174876 0.0006849 0.0309734 0.0005777 0.0184978 0.0004464 6.1 0.0299864 0.0008968 0.0167098 0.0006695 0.0298099 0.0005667 0.0181423 0.0004421 6.3 0.0295572 0.0008904 0.0164415 0.0006641 0.0287110 0.0005562 0.0175282 0.0004346 6.5 0.0305228 0.0009048 0.0148859 0.0006319 0.0293897 0.0005627 0.0180885 0.0004414 6.7 0.0290208 0.0008823 0.0160660 0.0006564 0.0282262 0.0005514 0.0178083 0.0004380 6.9 0.0280821 0.0008679 0.0160392 0.0006559 0.0281292 0.0005505 0.0176252 0.0004358 7.1 0.0291817 0.0008847 0.0155833 0.0006465 0.0280861 0.0005501 0.0166125 0.0004231 7.3 0.0293158 0.0008867 0.0163343 0.0006619 0.0282908 0.0005521 0.0167957 0.0004254 7.5 0.0274115 0.0008574 0.0160660 0.0006564 0.0283339 0.0005525 0.0162247 0.0004181 7.7 0.0274920 0.0008587 0.0161733 0.0006586 0.0264809 0.0005341 0.0170219 0.0004282 7.9 0.0278407 0.0008641 0.0166561 0.0006684 0.0272135 0.0005415 0.0165048 0.0004217 8.1 0.0271969 0.0008541 0.0153955 0.0006426 0.0258668 0.0005279 0.0156645 0.0004108 8.3 0.0262314 0.0008388 0.0149664 0.0006336 0.0257699 0.0005269 0.0163539 0.0004197 8.5 0.0267142 0.0008465 0.0130352 0.0005913 0.0254467 0.0005236 0.0162893 0.0004189 8.7 0.0274652 0.0008583 0.0149664 0.0006336 0.0245632 0.0005144 0.0162893 0.0004189 8.9 0.0254267 0.0008258 0.0136521 0.0006051 0.0240784 0.0005093 0.0153628 0.0004068 Fig.1 (middle panel) ------------------------------------------------ M_X^2 data stat. PYTHIA stat. [GeV^2] N_pi^+ error N_pi^+ error - N_pi^- - N_pi^- ------------------------------------------------ -1.9 0.0002950 0.0001039 0.0000862 0.0000528 -1.7 -0.0000805 0.0001286 0.0000970 0.0000619 -1.5 0.0002146 0.0001314 0.0002370 0.0000628 -1.3 0.0006437 0.0001696 0.0000539 0.0000655 -1.1 0.0006974 0.0001653 0.0000431 0.0000681 -0.9 0.0009656 0.0002146 0.0002801 0.0000820 -0.7 0.0011265 0.0002179 0.0001724 0.0000939 -0.5 0.0014484 0.0002573 0.0002909 0.0000970 -0.3 0.0024944 0.0003424 0.0003017 0.0000999 -0.1 0.0034868 0.0003996 0.0004740 0.0001293 0.1 0.0052034 0.0004916 0.0007865 0.0001587 0.3 0.0077514 0.0005620 0.0008942 0.0001978 0.5 0.0096557 0.0006493 0.0017561 0.0002358 0.7 0.0134375 0.0007350 0.0021008 0.0002807 0.9 0.0155296 0.0008570 0.0033721 0.0003429 1.1 0.0155564 0.0009322 0.0045140 0.0003877 1.3 0.0120965 0.0009380 0.0057099 0.0004502 1.5 0.0144031 0.0009946 0.0073905 0.0004958 1.7 0.0132230 0.0010294 0.0084571 0.0005443 1.9 0.0110773 0.0010467 0.0097283 0.0005896 2.1 0.0131693 0.0010765 0.0112905 0.0006228 2.3 0.0114259 0.0010948 0.0115490 0.0006599 2.5 0.0132766 0.0011062 0.0110319 0.0006679 2.7 0.0141081 0.0011316 0.0129819 0.0006929 2.9 0.0140276 0.0011023 0.0132620 0.0007041 3.1 0.0141617 0.0011124 0.0142424 0.0007112 3.3 0.0145372 0.0010915 0.0141670 0.0007160 3.5 0.0131425 0.0011329 0.0140269 0.0007259 3.7 0.0119624 0.0010961 0.0154274 0.0007337 3.9 0.0151809 0.0011297 0.0153736 0.0007355 4.1 0.0128743 0.0011149 0.0145332 0.0007338 4.3 0.0145104 0.0011236 0.0148457 0.0007433 4.5 0.0164952 0.0011383 0.0145871 0.0007436 4.7 0.0147786 0.0011294 0.0144255 0.0007463 4.9 0.0145104 0.0011408 0.0130896 0.0007311 5.1 0.0134375 0.0011262 0.0135098 0.0007361 5.3 0.0154492 0.0011354 0.0138545 0.0007370 5.5 0.0130889 0.0011265 0.0140269 0.0007315 5.7 0.0145372 0.0011291 0.0130358 0.0007270 5.9 0.0124988 0.0011284 0.0124755 0.0007300 6.1 0.0132766 0.0011191 0.0116675 0.0007188 6.3 0.0131157 0.0011107 0.0111827 0.0007058 6.5 0.0156369 0.0011036 0.0113012 0.0007152 6.7 0.0129548 0.0010997 0.0104178 0.0007042 6.9 0.0120428 0.0010878 0.0105040 0.0007021 7.1 0.0135985 0.0010957 0.0114736 0.0006939 7.3 0.0129816 0.0011065 0.0114952 0.0006969 7.5 0.0113455 0.0010799 0.0121092 0.0006929 7.7 0.0113187 0.0010822 0.0094590 0.0006846 7.9 0.0111845 0.0010925 0.0107087 0.0006863 8.1 0.0118014 0.0010688 0.0102024 0.0006689 8.3 0.0112650 0.0010512 0.0094159 0.0006737 8.5 0.0136789 0.0010325 0.0091573 0.0006705 8.7 0.0124988 0.0010668 0.0082739 0.0006634 8.9 0.0117746 0.0010238 0.0087156 0.0006519 Fig.1 (bottom panel) ------------------------------------------------ M_X^2 data stat. syst. excl. MC [GeV^2] excl.pi+ error error N_pi^+ ------------------------------------------------ -1.9 0.0002088 0.0001165 0.0000172 0.0869725 -1.7 -0.0001774 0.0001427 0.0000194 0.1067619 -1.5 -0.0000224 0.0001456 0.0000474 0.1640759 -1.3 0.0005898 0.0001819 0.0000108 0.2070055 -1.1 0.0006543 0.0001788 0.0000086 0.2602526 -0.9 0.0006855 0.0002297 0.0000560 0.4462208 -0.7 0.0009541 0.0002373 0.0000345 0.8654506 -0.5 0.0011575 0.0002749 0.0000582 1.3705040 -0.3 0.0021927 0.0003567 0.0000603 2.1888053 -0.1 0.0030128 0.0004200 0.0000948 3.4677188 0.1 0.0044169 0.0005166 0.0001573 4.9836636 0.3 0.0068572 0.0005958 0.0001788 6.5877910 0.5 0.0078997 0.0006908 0.0003512 8.6785898 0.7 0.0113367 0.0007868 0.0004202 10.3779030 0.9 0.0121576 0.0009231 0.0006744 11.1322908 1.1 0.0110424 0.0010096 0.0009028 10.8919821 1.3 0.0063866 0.0010404 0.0011420 10.4966021 1.5 0.0070126 0.0011113 0.0014781 8.9267359 1.7 0.0047659 0.0011645 0.0016914 7.1965351 1.9 0.0013489 0.0012014 0.0019457 5.5874524 2.1 0.0018789 0.0012437 0.0022581 4.2505713 2.3 -0.0001231 0.0012783 0.0023098 3.4391751 2.5 0.0022447 0.0012922 0.0022064 2.7165186 2.7 0.0011262 0.0013269 0.0025964 2.0649457 2.9 0.0007656 0.0013080 0.0026524 1.8551277 3.1 -0.0000806 0.0013203 0.0028485 1.6922902 3.3 0.0003703 0.0013054 0.0028334 1.4637620 3.5 -0.0008844 0.0013455 0.0028054 1.3027953 3.7 -0.0034651 0.0013190 0.0030855 1.2417878 3.9 -0.0001926 0.0013480 0.0030747 1.0731518 4.1 -0.0016590 0.0013347 0.0029067 0.9533480 4.3 -0.0003353 0.0013472 0.0029691 0.9476423 4.5 0.0019081 0.0013596 0.0029174 0.8581434 4.7 0.0003531 0.0013537 0.0028851 0.8556365 4.9 0.0014208 0.0013549 0.0026179 0.8758558 5.1 -0.0000722 0.0013454 0.0027020 0.7548261 5.3 0.0015946 0.0013536 0.0027709 0.7698355 5.5 -0.0009380 0.0013432 0.0028054 0.6263045 5.7 0.0015015 0.0013429 0.0026072 0.6502379 5.9 0.0000233 0.0013440 0.0024951 0.5534717 6.1 0.0016091 0.0013301 0.0023335 0.5941916 6.3 0.0019330 0.0013160 0.0022365 0.6463382 6.5 0.0043357 0.0013151 0.0022603 0.5346332 6.7 0.0025369 0.0013058 0.0020836 0.5236128 6.9 0.0015388 0.0012947 0.0021008 0.5335470 7.1 0.0021249 0.0012970 0.0022947 0.4326509 7.3 0.0014864 0.0013077 0.0022990 0.4905632 7.5 -0.0007638 0.0012830 0.0024218 0.4238991 7.7 0.0018596 0.0012806 0.0018918 0.3973538 7.9 0.0004758 0.0012901 0.0021417 0.3833122 8.1 0.0015991 0.0012609 0.0020405 0.4129549 8.3 0.0018491 0.0012485 0.0018832 0.4560531 8.5 0.0045216 0.0012312 0.0018315 0.3330452 8.7 0.0042249 0.0012563 0.0016548 0.3847310 8.9 0.0030590 0.0012137 0.0017431 0.3406609